╨╧рб▒с>■   ВЖ■   zyД{ДГ╖╕╣А                                                                                                                                                                                                                                                                                                                                                                                                            ье┴s ┐>Хjbjb└ └ "╢кkкk>С      ]ЦЦЦЦЦЦЦ^ ^ ^ ^ ^ j T^ }ъТТТТТТТТ:<<<<<<,gЇ[\hЦТТТТТhТЦЦТТТТТТТЦТЦТ:кZZЦЦЦЦТ:ТиТ:ЦЦ:╛╘vTд╢^ ^ Т: ============================= THE MAYFLIES OF NORTH AMERICA ============================= This plain text document is available at http://www.entm.purdue.edu/entomology/research/mayfly/mayflyna.txt The HTML version is at http://www.entm.purdue.edu/entomology/research/mayfly/contents.html CONTENTS: - Current and last dates of coverage - Keeping The Mayflies of North America current - Basis for The Mayflies of North America - Why The Mayflies of North America? - Comments and information please - What's new in this edition? - Preview of upcoming changes - How to read The Mayflies of North America - Geographic coverage - Abbreviations defined - Higher classification of The Mayflies of North America - Species list Current and last dates of coverage: Current Update: February 2, 2001 Former Updates: September 15, 1995; June 21, 1996; January 10, 1997; February 9, 1998; January 15, 1999; July 6, 1999; August 12, 1999; March 27, 2000; May 12, 2000; September 22, 2000 Keeping The Mayflies of North America current: The documentation provided herein is subject to continuous change and modification as researchers continue to learn more about the species makeup of mayflies in North America, their relationships, and their distribution. The electronic medium, in addition to allowing ideal searching and indexing capabilities, allows the documentation to remain continually current. Immediate updating is possible as new data are published. The contents will be updated on a continuous basis, at least quarterly, as of the Current Update, given above. With such a large and detailed documentation, it is possible that inadvertent errors and omissions have occurred, even though every effort has been made to eliminate them. The data presentation has been proofread by mayfly specialists at Mayfly Central and elsewhere. Basis for The Mayflies of North America: The essential foundation for the Species List of the Mayflies of North America is "The Ephemeroptera species of North American Ephemeroptera and index to their complete nomenclature" by W. P. McCafferty, 1996 in the Transactions of the American Entomological Society, vol. 122, pages 1-54. Numerous style differences exist between the electronic version and the published version for obvious reasons. Also, while published lists are somewhat out-of-date even when first published, the electronic version will continue to be current as discussed in Keeping the Mayflies of North America current. The higher classification used in The Mayflies of North America is modified from "Toward a phylogenetic classification of the Ephemeroptera (Insecta): a commentary on systematics" by W. P. McCafferty, published in 1991 in the Annals of the Entomological Society of America, Vol. 84, pages 343-360. Fossil species are not treated. The Mayflies of North America project is one of the primary objectives of Mayfly Central, and as such, changes, additions, and deletions to the species list and distributions of species are constantly monitored in the scientific literature. Besides this, there are active systematic and faunistic research programs being conducted at Mayfly Central that directly impact The Mayflies of North America. Why The Mayflies of North America? Mayflies constitute one of the most important groups of bottom-dwelling animals in streams and rivers throughout the world. They are also found in ponds and shallow lake areas. While the larvae (or nymphs) of mayflies live in water, the adults (and subimagos) are delicate flying forms noted for their often ephemeral lives. Mayflies are routinely used for monitoring water quality because their presence and diversity can be valuable indicators of the health of their aquatic environment. Mayflies are a vital link in the food web of freshwater ecosystems, making energy stored in algae and other aquatic plants available to higher consumers (other invertebrates, fish, birds, etc.). Any fly fisher can expound on the value of mayflies as food for many gamefish and more specifically as models for fashioning tied flies. With renewed emphasis on understanding our biota, the time is ripe for beginning the documentation of the biodiversity and distribution of the mayfly fauna in an easily accessible and current format. In Mexico and some areas of the United States and Canada, mayfly species are susceptible to existing and impending environmental degradation. It is even more important to understand the makeup and distribution of these endangered and impacted species. Already, two recent species of North American burrowing mayflies (Ephemera compar and Pentagenia robusta) are considered extinct. It is important to document the biodiversity of mayflies for the reasons stated above. An expedient means of managing this information and frequently updating it as research endeavors continue to shed more light on the subject is by providing The Mayflies of North America on the World Wide Web. Comments and information please: You are encouraged to send any and all corrections and suggestions or published new data on The Mayflies of North America. E-mail: pat_mccafferty@entm.purdue.edu Mail: Mayfly Central Coordinator Department of Entomology Purdue University West Lafayette, IN 47907 Fax: 765-494-0535. What's new in this edition? Current changes and corrections are based primarily on the following: Wiersema & McCafferty, 2000, Trans. Am. Ent. Soc. 126; McCafferty, 2000, Ent. News 111: 265-269; McCafferty & Randolph, 2000, Ent. News 111: 259-264; McCafferty, 2000, Ann. Limnol. 36: 157-161. How to read The Mayflies of North America: In the species list you will find below, all valid species names are listed in alphabetical order along the left margin, first by family, then by genus under each family, then by species under each genus, and if subspecies are recognized then by subspecies under the species. Other names by which the valid species have also been known are also listed by genus and species under the valid name to which they apply. The subordinate name equivalents appear in indented lists. All names, valid or subordinate, are followed by the actual author of that name and the date that name was published. Such precise documentation allows users to search any name ever used in published form for any North American mayfly species, including homonyms (the same names used for different species), and thus determine both current and historical usage. Codes and abbreviations incorporated into the list are explained under Geographic Coverage and Abbreviations Defined. Geographic coverage: Broad geographic regions in which the species have been observed, based on published records, are indicated by two-letter codes in brackets following the valid species names. These codes and their areas are indicated on the accompanying map of North America: FN=far north (above the 60th parallel); FS=far south (below the Tropic of Cancer); NE=northeast; NW=northwest; SE=southeast; SW=southwest. See Species List for usage examples. In addition actual countries of distribution are also given: CAN=Canada; MEX=Mexico; and USA=United States. As an example, USA:FN indicates an Alaskan distribution whereas MEX:SW indicates a northern Mexican distribution. Only FS and SE are unique to one country (FS to Mexico, SE to the United States). Abbreviations defined: All subordinate species name equivalents are followed by some parenthetical indicator of the basis for their subordination. In addition, for those few species that are of dubious status (unable to be refuted or substantiated at this time), the species name is followed by (dub.), see below. Abbreviations used in parentheses accompanying names are defined as follows: (comb.) combination: a name recombined with a generic name different from the original; (dub.) nomen dubium: a name that is of dubious status in that it cannot presently be determined what the species named as such actually is; although all nomina dubia have a generic name associated with them, keep in mind that some of them cannot actually be placed to any genus with confidence due to the lack, or loss, of original material on which the names were based; (hom.) homonym: the name (as the unique combination of genus and species names) is or becomes the same as one used for another species at an earlier time; the subordinate homonym, therefore, had to be replaced with a new name, see (renam.), below; the species name that has priority is also indicated within the parentheses along with (hom.); (id.) misidentification: another valid species (not a subordinate name) with which the species has incorrectly been associated in the past; although historical misidentifiactions are not generally cited in the Species List, in the one instance where a North American species has traditionally been cited by the name of another valid species now known not to occur in North America, the misidentification is noted so that the species may be tracked; (orig.) original: the original name, including the original name in its correct form if it has been changed from an incorrectly formed name; (renam.) renamed: a new name given because the original or recombination of the original is a secondary homonym (the same as that which has been given to another species previously); in one instance, the new name was unnecessary and is indicated as (invalid renam.); (spell.) spelling: a misspelled or incorrect form of the name; (stat.) status: represents a change from species to subspecies status within the same species; (syn.) synonym: another name that was proposed independently for the same species. Normally, the earliest published name takes priority. See Species List for usage examples. Higher classification: Higher classification of The Mayflies of North America, including other more recently used names that have been applied to the families (you may go directly to any family or genus section of the following Species List by clicking on the appropriate underscored name). Class Insecta Order Ephemeroptera Suborder Rectracheata Infraorder Lanceolata (leptophlebiids & burrowing mayflies) Superfamily Leptophlebioidea Family Leptophlebiidae Genus Choroterpes Eaton Genus Farrodes Peters Genus Habrophlebia Eaton Genus Habrophlebiodes Ulmer Genus Hydrosmilodon Flowers & Dominguez Genus Leptophlebia Westwood Genus Neochoroterpes Allen Genus Paraleptophlebia Lestage Genus Thraulodes Ulmer Genus Traverella Edmunds Superfamily Behningioidea Family Behningiidae Genus Dolania Edmunds & Traver Superfamily Ephemeroidea Family Potamanthidae Genus Anthopotamus McCafferty & Bae Family Polymitarcyidae (=Euthyplociidae + Polymitarcyidae) Genus Campsurus Eaton Genus Ephoron Williamson Genus Euthyplocia Eaton Genus Tortopus Needham & Murphy Family Ephemeridae (=Ephemeridae + Palingeniidae) Genus Ephemera Linnaeus Genus Hexagenia Walsh Genus Litobrancha McCafferty Genus Pentagenia Walsh Infraorder Pannota (the pannote mayflies) Superfamily Prosopistomatoidea Family Baetiscidae Genus Baetisca Walsh Superfamily Caenoidea Family Neoephemeridae Genus Neoephemera McDunnough Family Caenidae Genus Amercaenis Provonsha & McCafferty Genus Brachycercus Curtis Genus Caenis Stephens Genus Cercobrachys Soldan Superfamily Ephemerelloidea Family Ephemerellidae Genus Attenella Edmunds Genus Caudatella Edmunds Genus Caurinella Allen Genus Dannella Edmunds Genus Dentatella Allen Genus Drunella Needham Genus Ephemerella Walsh Genus Eurylophella Tiensuu Genus Serratella Edmunds Genus Timpanoga Needham Family Leptohyphidae (=Tricorythidae, subfamily Leptohyphinae) Genus Allenhyphes Hofmann & Sartori Genus Asioplax Wiersema & McCafferty Genus Homoleptohyphes Allen & Murvosh Genus Leptohyphes Eaton Genus Tricoryhyphes Allen & Murvosh Genus Tricorythodes Ulmer Genus Tricorythopsis Traver Genus Vacupernius Wiersema & McCafferty Suborder Pisciforma Family Acanthametropodidae (=Acanthametropodidae + Analetrididae) (=Siphlonuridae, subfamily Acanthametropodinae) Genus Acanthametropus Tshernova Genus Analetris Edmunds Family Ameletidae (=Siphlonuridae, subfamily Siphlonurinae in part) Genus Ameletus Eaton Family Ametropodidae Genus Ametropus Albarda Family Baetidae Genus Acentrella Bengtsson Genus Acerpenna Waltz & McCafferty Genus Apobaetis Day Genus Baetis Leach Genus Baetodes Needham & Murphy Genus Barbaetis Waltz & McCafferty Genus Callibaetis Eaton Genus Camelobaetidius Demoulin Genus Centroptilum Eaton Genus Cloeodes Traver Genus Cloeon Leach Genus Diphetor Waltz & McCafferty Genus Fallceon Waltz & McCafferty Genus Heterocloeon McDunnough Genus Moribaetis Waltz & McCafferty Genus Paracloeodes Day Genus Plauditus Lugo-Ortiz & McCafferty Genus Procloeon Bengtsson Genus Pseudocentroptiloides Jacob Genus Pseudocloeon Klapalek Family Metretopodidae Genus Metretopus Eaton Genus Siphloplecton Clemens Family Siphlonuridae (=Siphlonuridae, subfamily Siphlonurinae in part) Genus Edmundsius Day Genus Parameletus Bengtsson Genus Siphlonisca Needham Genus Siphlonurus Eaton Suborder Setisura Family Isonychiidae (=Oligoneuriidae, subfamily Isonychiinae) (=Siphlonuridae, subfamily Isonychiinae) Genus Isonychia Eaton Family Oligoneuriidae Genus Homoeoneuria Eaton Genus Lachlania Hagen Family Pseudironidae (=Heptageniidae, subfamily Pseudironinae) (=Siphlonuridae, subfamily Pseudironinae) Genus Pseudiron McDunnough Family Arthropleidae (=Heptageniidae, subfamily Arthropleinae) Genus Arthroplea Bengtsson Family Heptageniidae (=Heptageniidae, subfamily Heptageniinae) Genus Acanthomola Whiting& Lehmkuhl Genus Anepeorus McDunnough Genus Cinygma Eaton Genus Cinygmula McDunnough Genus Epeorus Eaton Genus Heptagenia Walsh Genus Ironodes Traver Genus Leucrocuta Flowers Genus Macdunnoa Lehmkuhl Genus Nixe Flowers Genus Raptoheptagenia Whiting & Lehmkuhl Genus Rhithrogena Eaton Genus Stenacron Jensen Genus Stenonema Traver The Mayflies of North America: Species List If you have questions about interpreting the list, see How to read The Mayflies of North America; if you have questions about the family classification see Higher classification. Current Number of North American Species: 680 (CAN: 319, MEX: 137, USA:569) This list has been compiled and is maintained by Mayfly Central, Purdue University.If you have questions about interpreting the list, see "Howtoread.html"How to read The Mayflies of North America; if you have questions about the family classification see "class.html"Higher classification; if you have any other questions concerning the list, go to "Contents.html"Contents. ACANTHAMETROPODIDAE Acanthametropus pecatonica (Burks), 1953 [USA:NE,SE]< Metreturus pecatonica Burks, 1953 (orig.) Analetris eximia Edmunds, 1972 [CAN:NW;USA:NW] AMELETIDAE Ameletus amador Mayo, 1939 [USA:NW] Ameletus andersoni Zloty, 1996 [USA:NW] Ameletus bellulus Zloty, 1996 [CAN:NW;USA:NW] Ameletus browni McDunnough, 1933 [CAN:NE;USA:NE] Ameletus celer McDunnough, 1934 [CAN:NW;USA:NW] Ameletus alticolus McDunnough, 1934 (syn.) Ameletus celeroides McDunnough, 1934 (syn.) Ameletus tuberculatus McDunnough, 1939 (syn.) Ameletus cooki McDunnough, 1929 [CAN:NW;USA:NW] Ameletus cryptostimulus Carle, 1978 [USA:NE,SE] Ameletus dissitus Eaton, 1885 [USA:NW] Ameletus doddsianus Zloty, 1996 [USA:NW,SW] Ameletus sp. A Allen & Chao, 1981 (syn.) Ameletus edmundsi Zloty, 1996 [USA:NW] Ameletus exquisitus Eaton, 1885 [USA:NW] Ameletus falsus McDunnough, 1938 [USA:SW] Ameletus sp. C Allen & Chao, 1981 (syn.) Ameletus imbellis Day, 1952 [USA:NW] Ameletus inopinatus Eaton, 1887 [CAN:FN] Ameletus alpinus Bengtsson, 1913 (syn.) Ameletus lineatus Traver, 1932 [CAN:NE;USA:NE,SE] Ameletus ludens Needham, 1905 [CAN:NE;USA:NE,SE] Ameletus majusculus Zloty, 1996 [CAN:NW;USA:NW] Ameletus minimus Zloty & Harper, 1999 [USA:NW] Ameletus oregonensis McDunnough, 1933 [CAN:NW;USA:NW] Ameletus pritchardi Zloty, 1996 [CAN:NW] Ameletus quadratus Zloty & Harper, 1999 [USA:NW] Ameletus shepherdi Traver, 1934 [CAN:NW;USA:NW] Ameletus querulus McDunnough, 1938 (syn.) Ameletus similior McDunnough, 1928 [CAN:NW;USA:NW] Ameletus monta Mayo, 1952 (syn.) Ameletus montis Mayo, 1952 (syn.) Ameletus sparsatus McDunnough, 1931 [CAN:FN,NW;USA:NW] Ameletus aequivocus McDunnough, 1934 (syn.) Ameletus subnotatus Eaton, 1885 [CAN:NE,NW;USA:NW] Ameletus suffusus McDunnough, 1936 [CAN:NW;USA:NW] Ameletus tarteri Burrows, 1987 [USA:SE] Ameletus tertius McDunnough, 1938 [CAN:NE;USA:NE] Ameletus tolae Zloty, 1996 [USA:NW] Ameletus validus McDunnough, 1923 [CAN:NW;USA:FN,NW] Ameletus vancouverensis McDunnough, 1933 [CAN:NW;USA:NW] Ameletus facilis Day, 1952 (syn.) Ameletus velox Dodds, 1923 [CAN:NW;USA:NW,SW] Ameletus connectina McDunnough, 1939 (syn.) Ameletus connectinus McDunnough, 1939 (syn.) Ameletus connectus McDunnough, 1936 (syn.) Ameletus vernalis McDunnough, 1924 [CAN:NW;USA:NW] Ameletus walleyi Harper, 1970 [CAN:NE] AMETROPODIDAE Ametropus albrighti Traver, 1935 [CAN:NW;USA:NW,SW] Ametropus ammophilus Allen & Edmunds, 1976 [USA:NW] Ametropus neavei McDunnough, 1928 [CAN:FN,NW;USA:NE,NW] ARTHROPLEIDAE Arthroplea bipunctata (McDunnough), 1924 [CAN:FN,NE;USA:NE] Cinygma bipunctata McDunnough, 1924 (orig.) BAETIDAE Acentrella alachua (Berner), 1940 [USA:SE] Baetis alachua Berner, 1940 (orig.) Plauditus alachua (Berner), 1940 (comb.) Pseudocloeon alachua (Berner), 1940 (comb.) Acentrella ampla Traver, 1932 [USA:NE,SE,SW] Baetis amplus (Traver), 1932 (comb.) Acentrella feropagus Alba-Tercedor & McCafferty, 2000 [CAN:FN,NE;USA:FN] Acentrella lapponica Bengtsson, 1912 (id.) Baetis lapponicus (Bengtsson), 1912 (id.) Acentrella insignificans (McDunnough), 1926 [CAN:FN,NW;MEX:SW;USA:NW,SW] Baetis insignificans McDunnough, 1926 (orig.) Acentrella parvula (McDunnough), 1932 [CAN:NE,NW;USA:NE,NW,SE] Baetis armillatus McCafferty & Waltz, 1990 (syn.) Plauditus armillatus (McCafferty & Waltz), 1990 (syn.comb.) Plauditus parvulus (McDunnough), 1932 (comb.) Pseudocloeon parvulum McDunnough, 1932 (orig.) Acentrella turbida (McDunnough), 1924 [CAN:NE,NW;USA:NE,NW,SE,SW] Acentrella carolina (Banks), 1924 (syn.) Cloeon carolina Banks, 1924 (syn.) Pseudocloeon carolina (Banks), 1924 (syn.) Pseudocloeon turbidum McDunnough, 1924 (orig.) Acerpenna akataleptos (McDunnough), 1926 [CAN:NW] Baetis akataleptos McDunnough, 1926 (orig.) Acerpenna macdunnoughi (Ide), 1937 [CAN:NE;USA:NE,SE] Baetis macdunnoughi Ide, 1937 (orig.) Acerpenna pygmaea (Hagen), 1861 [CAN:FN,NE,NW;USA:NE,NW,SE,SW] Acerpenna sp. 1 McCafferty & Davis, 1992 (syn.) Acerpenna harti (McDunnough), 1924 (syn.) Baetis harti McDunnough, 1924 (syn.) Baetis pygmaeus (Hagen), 1861 (comb.) Baetis spiethi Berner, 1940 (syn.) Cloe pygmaea Hagen, 1861 (orig.) Acerpenna thermophilos (McDunnough), 1926 [USA:NW] Baetis thermophilos McDunnough, 1926 (orig.) Americabaetis intermedius (Lugo-Ortiz & McCafferty), 1994 [MEX:FS] Acerpenna intermedia Lugo-Ortiz & McCafferty, 1994 (orig.) Americabaetis lugoi Waltz & McCafferty, 1999 [MEX:FS] Americabaetis pleturus (Lugo-Ortiz & McCafferty), 1994 [MEX:FS,SW;USA:SW] Acerpenna pletura Lugo-Ortiz & McCafferty, 1994 (orig.) Apobaetis etowah (Traver), 1935 [USA:SE] Pseudocloeon etowah Traver, 1935 (orig.) Apobaetis indeprensus Day, 1955 [CAN:NW;MEX:SW;USA:NE,NW,SW] Apobaetis lakota McCafferty, 2000 [USA:NE] Baetis adonis Traver, 1935 [MEX:SW;USA:SW] Baetis caelestis Allen & Murvosh, 1983 (syn.) Baetis sp. A Morihara & MacCafferty, 1979 (syn.) Baetis alius Day, 1954 [USA:NW] Baetis bicaudatus Dodds, 1923 [CAN:FN,NW;USA:FN,NW,SW] Baetis minimus Dodds, 1923 (syn.) Baetis brunneicolor McDunnough, 1925 [CAN:NE,NW;USA:NE,SE] Baetis anachris Burks, 1953 (syn.) Baetis hiemalis Leonard, 1950 (syn.) Baetis phyllis Burks, 1953 (syn.) Baetis bundyae Lehmkuhl, 1973 [CAN:FN,NE,NW;USA:FN,NE,NW] Baetis bundyi Lehmkuhl, 1973 (spell.) Baetis macani bundyae Lehmkuhl, 1973 (syn.) Baetis caurinus Edmunds & Allen, 1957 [USA:NW] Baetis diablus Day, 1954 [USA:NW] Baetis flavistriga McDunnough, 1921 [CAN:FN,NE,NW;MEX:FS,SW;USA:NE,NW,SE,SW] Baetis cingulatus McDunnough, 1925 (syn.) Baetis levitans McDunnough, 1925 (syn.) Baetis nanus McDunnough, 1923 (syn.) Baetis ochris Burks, 1953 (syn.) Baetis pallidula McDunnough, 1924 (syn.) Baetis pallidulus McDunnough, 1924 (syn.) Baetis phoebus McDunnough, 1923 (syn.) Baetis quebecensis Hubbard, 1974 (syn.) Baetis sinuosus Navas, 1924 (syn.) Baetis foemina McDunnough, 1936 [CAN:FN] Baetis hudsonicus Ide, 1937 [CAN:NE,NW] Baetis intercalaris McDunnough, 1921 [CAN:NE;USA:NE,SE,SW] Baetis lasallei Banks, 1924 (syn.) Baetis magnus McCafferty & Waltz, 1986 [MEX:FS,SW;USA:NW,SW] Baetis libos Allen & Murvosh, 1987 (syn.) Baetis sp. B Morihara & McCafferty, 1979 (syn.) Baetis notos Allen & Murvosh, 1987 [MEX:FS;USA:NW,SW] Baetis sp. C Morihara & McCafferty, 1979 (syn.) Baetis palisadi Mayo, 1952 [USA:NW] Baetis parallelus Banks, 1924 [CAN:NW;USA:NW] Baetis persecutor McDunnough, 1939 [CAN:NW] Baetis persecuta McDunnough, 1939 (spell.) Baetis persecutus McDunnough, 1939 (spell.) Baetis piscatoris Traver, 1935 [USA:NW] Baetis pluto McDunnough, 1925 [CAN:NE;USA:NE,SE] Baetis posticatus (Say), 1823 (dub.) [USA:NE] Cloe posticata (Say), 1823 (comb.) Cloeon posticata Say, 1823 (orig.) Baetis rusticans McDunnough, 1925 [CAN:NE;USA:NE,SW?] Baetis sulfurosus Day, 1954 [USA:NW] Baetis tricaudatus Dodds, 1923 [CAN:FN,NE,NW;MEX:FS,SW;USA:FN,NE,NW,SE,SW] Baetis incertans McDunnough, 1925 (syn.) Baetis intermedius Dodds, 1923 (syn.) Baetis jesmondensis McDunnough, 1938 (syn.) Baetis moffati Dodds, 1923 (syn.spell.) Baetis moffatti Dodds, 1923 (syn.) Baetis sp. No. 1 Traver, 1932 (syn.) Baetis vagans McDunnough, 1925 (syn.) Baetodes adustus Cohen & Allen, 1972 [MEX:FS] Baetodes alleni McCafferty & Provonsha, 1993 [USA:SW] Baetodes arizonensis Koss, 1972 [USA:SW] Baetodes sigillatus Allen & Chao, 1972 (syn.) Baetodes bibranchius McCafferty & Provonsha, 1993 [MEX:FS;USA:SW] Baetodes caritus Cohen & Allen, 1972 [MEX:FS] Baetodes veracrusensis Mayo, 1972 (syn.) Baetodes deficiens Cohen & Allen, 1972 [MEX:FS,SW;USA:SW] Baetodes bellus Mayo, 1972 (syn.) Baetodes edmundsi Koss, 1972 [MEX:SW;USA:SW] Baetodes fortinensis Mayo, 1972 [MEX:FS] Baetodes fuscipes Cohen & Allen, 1972 [MEX:FS,SW] Baetodes furvus Mayo, 1973 (syn.) Baetodes inermis Cohen & Allen, 1972 [MEX:FS,SW;USA:SW] Baetodes longus Mayo, 1973 [MEX:SW] Baetodes obesus Mayo, 1972 [MEX:FS] Baetodes pallidus Cohen & Allen, 1972 [MEX:FS] Baetodes pictus Cohen & Allen, 1972 [MEX:FS,SW] Baetodes tritus Cohen & Allen, 1972 [MEX:FS,SW] Baetodes velmae Cohen & Allen, 1978 [MEX:SW] Barbaetis benfieldi Kennedy, 1985 [USA:SE] Callibaetis californicus Banks, 1900 [MEX:FS,SW;USA:SW] Callibaetis centralis Peters, 1959 [USA:NE] Callibaetis distinctus Lugo-Ortiz & McCafferty, 1996 [MEX:SW] Callibaetis ferrugineus ferrugineus (Walsh), 1862 [CAN:NE;USA:NE] Baetis ferrugineus (Walsh), 1862 (comb.) Callibaetis ferrugineus (Walsh), 1862 (comb. Cloe ferruginea Walsh, 1862 (orig.) Callibaetis ferrugineus hageni Eaton, 1885 [CAN:FN,NW;USA:NW,SW] Baetis tessellata Hagen, 1861 (hom.: B. tessellata Walker, 1853) Callibaetis americanus Banks, 1900 (syn.) Callibaetis carolus Traver, 1935 (syn.) Callibaetis coloradensis Banks, 1900 (syn.) Callibaetis evergreenensis Thew, 1959 (syn.) Callibaetis fuscus Dodds, 1923 (syn.) Callibaetis hageni Eaton, 1885 (orig.) Callibaetis hebes Upholt, 1936 (syn.) Callibaetis nigritus Banks, 1918 (syn.) Callibaetis tessellatus (Hagen), 1861 (hom.comb.) Callibaetis floridanus Banks, 1900 [MEX:FS,SW;USA:NE,SE,SW] Callibaetis completa Banks, 1930 (syn.) Callibaetis fluctuans (Walsh), 1862 [CAN:NE;USA:NE,NW,SE,SW] Baetis fluctuans (Walsh), 1862 (comb.) Callibaetis traverae Upholt, 1937 (syn.) Cloe fluctuans Walsh, 1862 (orig.) Callibaetis montanus Eaton, 1885 [MEX:FS;USA:SW] Callibaetis montanus montanus Eaton, 1885 (stat.) Callibaetis pallidus Banks, 1900 [CAN:NE,NW;USA:NE,NW,SW] Callibaetis semicostatus Banks, 1914 (syn.) Callibaetis pictus (Eaton), 1871 [MEX:FS,SW;USA:NW,SW] Baetis pictus Eaton, 1871 (orig.) Callibaetis doddsi Traver, 1935 (syn.) Callibaetis pacificus Seemann, 1927 (syn.) Callibaetis signatus Banks, 1918 (syn.) Callibaetis vitrea Dodds, 1923 (syn.) Callibaetis pretiosus Banks, 1914 [CAN:NE;USA:NE,SE] Callibaetis punctilusus McCafferty & Provonsha, 1993 [MEX:FS,SW;USA:SW] Callibaetis montanus punctilusus McCafferty & Provonsha, 1993 (orig.) Callibaetis skokianus Needham, 1903 [CAN:NE,NW;USA:NE] Callibaetis brevicostatus Daggy, 1945 (syn.) Callibaetis undatus (Pictet), 1843 (dub.) [MEX:FS] Cloe undata Pictet, 1843 (orig.) Cloeon undata (Pictet), 1843 (comb.) Camelobaetidius arriaga (Traver & Edmunds), 1968 [MEX:FS] Dactylobaetis arriaga Traver & Edmunds, 1968 (orig.) Dactylobaetis chiapas Traver & Edmunds, 1968 (syn.) Dactylobaetis jenseni Traver &;Edmunds, 1968 (syn.) Camelobaetidius chiapas (Traver & Edmunds), 1968 (syn.) Camelobaetidius jenseni (Traver & Edmunds), 1968 (syn.) Camelobaetidius kickapoo McCafferty, 2000 [MEX:SW;USA:NW,SW] Camelobaetidius sp. 1 McCafferty & Davis, 1992 (orig.) Camelobaetidius mexicanus (Traver & Edmunds), 1968 [MEX:FS,SW;USA:SW] Dactylobaetis mexicanus Traver & Edmunds, 1968 (orig.) Camelobaetidius musseri (Traver & Edmunds), 1968 [MEX:FS,SW;USA:SW] Camelobaetidius salinus (Allen & Chao), 1978 (syn.) Camelobaetidius sinaloa (Allen & Murvosh), 1987 (syn.) Dactylobaetis musseri Traver & Edmunds, 1968 (orig.) Dactylobaetis salinus Allen & Chao, 1978 (syn.) Dactylobaetis sinaloa Allen & Murvosh, 1987 (syn.) Camelobaetidius similis Lugo-Ortiz & McCafferty, 1995 [MEX:FS,SW] Camelobaetidius variabilis Wiersema, 1997 [MEX:SW;USA:SW] Camelobaetidius waltzi McCafferty, 1994 [USA:NE,SW] Camelobaetidius warreni (Traver & Edmunds), 1968 [CAN:NW;MEX:FS,SW;USA:NW,SW] Camelobaetidius cepheus (Traver & Edmunds), 1968 (syn.) Camelobaetidius navis (Allen & Chao), 1978 (syn.) Camelobaetidius trivialis (Allen & Chao), 1978 (syn.) Camelobaetidius zenobia (Traver & Edmunds), 1968 (syn.) Dactylobaetis cepheus Traver & Edmunds, 1968 (syn.) Dactylobaetis navis Allen & Chao, 1978 (syn.) Dactylobaetis trivialis Allen & Chao, 1978 (syn.) Dactylobaetis warreni Traver & Edmunds, 1968 (orig.) Dactylobaetis zenobia Traver &;Edmunds, 1968 (syn.) Centroptilum alamance (Traver), 1932 [USA:NE,SE] Cloeon alamance (Traver), 1932 (comb.) Neocloeon alamance Traver, 1932 (orig.) Centroptilum album McDunnough, 1926 [CAN:NE,NW;USA:NE,NW,SE,SW] Procloeon album (McDunnough), 1926 (comb.) Procloeon sp. 2 McCafferty & Davis 1992 (syn.) Centroptilum asperatum Traver, 1935 [USA:SW] Procloeon asperatum (Traver), 1935 (comb.) Centroptilum bifurcatum McDunnough, 1924 [CAN:NE,NW;USA:NW] Centroptilum conturbatum McDunnough, 1929 [CAN:NE,NW;USA:NW] Procloeon conturbatum (McDunnough), 1929 (comb.) Centroptilum convexum Ide, 1930 [CAN:NE;USA:NE] Procloeon convexum (Ide), 1930 (comb.) Centroptilum elsa Traver, 1935 [USA:NW,SW] Procloeon elsa (Traver), 1935 (comb.) Centroptilum minor McDunnough, 1926 [CAN:NE;USA:SE] Procloeon minor (McDunnough), 1926 (comb.) Centroptilum oreophilum Edmunds, 1954 [USA:NW] Procloeon oreophilum (Edmunds), 1954 (comb.) Centroptilum ozarkensum Wiersema & Burian, 2000 [USA:SE] Centroptilum selanderorum Edmunds, 1954 [USA:NW] Centroptilum semirufum McDunnough, 1926 [CAN:NE;USA:NE] Centroptilum triangulifer (McDunnough), 1931 [CAN:NE;USA:NE,SE,SW] Centroptilum sp. 1 McCafferty & Davis, 1992 (syn.) Cloeon triangulifer McDunnough, 1931 (orig.) Centroptilum victoriae McDunnough, 1938 [CAN:NE,NW] Centroptilum walshi McDunnough, 1929 [CAN:NE;USA:NE] Procloeon walshi (McDunnough), 1929 (comb.) Cloeodes excogitatus Waltz & McCafferty, 1987 [MEX:FS,SW;USA:NW,SW] Cloeodes macrolamellus Waltz & McCafferty, 1987 [USA:SW] Cloeodes peninsulus Waltz & McCafferty, 1987 [MEX:SW] Cloeodes waltzi Wiersema & Baumgardner, 2000 [MEX:SW] Cloeon cognatum Stephens, 1835 [USA:NE] Cloeon dipterum (Linnaeus), 1761 (id.) Diphetor devinctus (Traver), 1935 [USA:NW] Baetis devinctus Traver, 1935 (orig.) Diphetor hageni (Eaton), 1885 [CAN:FN,NE,NW;USA:NE,NW,SE] Baetis hageni Eaton, 1885 (renam.) Baetis herodes Burks, 1953 (syn.) Baetis parvus Dodds, 1923 (syn.) Baetis unicolor (Hagen), 1861 (hom.comb.) Cloe unicolor Hagen, 1861 (hom.: C. unicolor Curtis, 1834) Fallceon eatoni (Kimmins), 1934 [MEX:SW] Baetis eatoni Kimmins, 1934 (orig.) Fallceon fortipalpus Lugo-Ortiz & McCafferty, 1994 [MEX:SW] Fallceon longifolius (Kluge), 1992 [MEX:FS] Baetis longifolius Kluge, 1992 (orig.) Fallceon quilleri (Dodds), 1923 [CAN:NE,NW;MEX:FS,SW;USA:NE,NW,SE,SW] Baetis buenoi Allen, 1985 (syn.) Baetis byblis Allen & Murvosh, 1983 (syn.) Baetis cleptis Burks, 1953 (syn.) Baetis endymion Traver, 1935 (syn.) Baetis erebus Traver, 1935 (syn.) Baetis leechi Day, 1954 (syn.) Baetis quilleri Dodds, 1923 (orig.) Baetis sonora Allen & Murvosh, 1987 (syn.) Fallceon buenoi (Allen), 1985 (syn.) Fallceon byblis (Allen & Murvosh), 1983 (syn.) Heterocloeon berneri (Muller-Liebenau), 1974 [USA:SE] Rheobaetis berneri Muller-Liebenau, 1974 (orig.) Heterocloeon curiosum (McDunnough), 1923 [CAN:NE;USA:NE,SE] Baetis curiosus (McDunnough), 1923 (comb.) Centroptilum curiosum McDunnough, 1923 (orig.) Rheobaetis traverae Muller-Liebenau, 1974 (syn.) Heterocloeon frivolum (McDunnough), 1925 [CAN:NE;USA:NE,NW] Baetis frivolus McDunnough, 1925 (orig.) Heterocloeon frivolus (McDunnough), 1925 (spell.) Heterocloeon petersi (Muller-Liebenau), 1974 [USA:SE] Rheobaetis petersi Muller-Liebenau, 1974 (orig.) Moribaetis macaferti Waltz, 1985 [MEX:FS] Moribaetis salvini (Eaton), 1885 [MEX:FS] Baetis salvini Eaton, 1885 (orig.) Paracloeodes lugoi Randolph & McCafferty, 2000 [MEX:FS] Paracloeodes minutus (Daggy), 1945 [MEX:SW;USA:NE,NW,SE,SW] Paracloeodes abditus Day, 1955 (syn.) Pseudocloeon minutum Daggy, 1945 (orig.) Plauditus bimaculatus (Berner), 1946 [USA:SE] Baetis bimaculatus (Berner), 1946 (comb.) Pseudocloeon bimaculatum Berner, 1946 (orig. Pseudocloeon bimaculatus Berner, 1946 (spell.) Plauditus cestus (Provonsha & McCafferty), 1982 [CAN:NE;USA:NE,NW,SE] Barbaetis cestus (Provonsha & McCafferty), 1982 (comb.) Pseudocloeon cestum Provonsha & McCafferty, 1982 (orig.) Plauditus cingulatus (McDunnough), 1931 [CAN:NE;USA:NE,SE] Baetis cinctutus McCafferty & Waltz, 1990 (syn.) Plauditus cinctutus (McCafferty & Waltz), 1990 (syn.comb.) Pseudocloeon cingulatum McDunnough, 1931 (orig.) Plauditus dubius (Walsh), 1862 [CAN:NE,NW;USA:NE,SE] Baetis dubius (Walsh), 1862 (comb.) Cloe dubia Walsh, 1862 (orig.) Cloeon chlorops McDunnough, 1923 (syn.) Cloeon dubium (Walsh), 1862 (comb.) Pseudocloeon chlorops (McDunnough), 1923 (syn.) Pseudocloeon dubium (Walsh), 1862 (comb.) Plauditus elliotti (Daggy), 1945 [USA:NE] Baetis elliotti (Daggy), 1945 (comb.) Pseudocloeon elliotti Daggy, 1945 (orig.) Pseudocloeon ida Daggy, 1945 (syn.) Plauditus futilis (McDunnough), 1931 [CAN:NW;USA:SE,SW] Baetis futile (McDunnough), 1931 (spell.) Baetis futilis (McDunnough), 1931 (comb.) Pseudocloeon futile McDunnough, 1931 (orig.) Plauditus gloveri McCafferty & Waltz, 1998 [USA:SE] Plauditus grandis Wiersema & Long, 2000 [USA:SE] Plauditus punctiventris (McDunnough), 1923 [CAN:NE,NW;USA:NE,NW,SE,SW] Baetis punctiventris (McDunnough), 1923 (comb.) Baetis sp. 1 McCafferty & Davis, 1992 (syn.) Cloeon punctiventris McDunnough, 1923 (orig.) Psuedocloeon anoka Daggy, 1945 (syn.) Pseudocloeon edmundsi Jensen, 1969 (syn.) Pseudocloeon myrsum Burks, 1953 (syn.) Pseudocloeon punctiventris (McDunnough), 1923 (comb.) Plauditus rubrolateralis (McDunnough), 1931 [CAN:NW] Baetis rubrolaterale (McDunnough), 1931 (spell.) Baetis rubrolateralis (McDunnough), 1931 (comb.) Pseudocloeon rubrolaterale McDunnough, 1931 (orig.) Plauditus texanus Wiersema, 1999 [USA:SW] Plauditus veteris (McDunnough), 1924 [USA:NE,SE] Baetis veteris (McDunnough), 1924 (comb.) Pseudocloeon veteris McDunnough, 1924 (orig.) Plauditus virilis (McDunnough), 1923 [CAN:NE,NW;MEX:SW;USA:NE,NW,SE,SW] Acentrella sp. 1 Lugo-Ortiz & McCafferty, 1995 (syn.) Acentrella sp. 2 Lugo-Ortiz & McCafferty, 1995 (syn.) Baetis virile (McDunnough), 1923 (comb.spell.) Baetis virilis (McDunnough), 1923 (comb.) Cloeon virilis McDunnough), 1923 (orig.) Pseudocloeon virile (McDunnough), 1923 (comb.) Pseudocloeon virilis (McDunnough), 1923 (comb.spell.) Procloeon bellum (McDunnough), 1924 [CAN:NE,NW;USA:NE] Centroptilum bellum McDunnough, 1924 (orig.) Procloeon caliginosum (McDunnough), 1925 [CAN:NE] Centroptilum caliginosum McDunnough, 1925 (orig.) Procloeon distinctum Wiersema, 1999 [USA:SW] Procloeon fragile (McDunnough), 1923 [CAN:NE;USA:NE,SE] Centroptilum fragile McDunnough, 1923 (orig.) Procloeon hobbsi (Berner), 1946 [USA:SE] Centroptilum hobbsi Berner, 1946 (orig.) Procloeon implicatum (McDunnough), 1924 [CAN:NW;USA:NW] Cloeon implicatum McDunnough, 1924 (orig.) Procloeon inanum (McDunnough), 1924 [CAN:NE,NW] Cloeon inanum McDunnough, 1924 (orig.) Procloeon ingens (McDunnough), 1923 [CAN:FN,NE,NW;USA:NE,NW] Cloeon ingens McDunnough, 1923 (orig.) Procloeon insignificans (McDunnough), 1925 [CAN:NE] Cloeon insignificans McDunnough, 1925 (orig.) Procloeon intermediale (McDunnough), 1931 [CAN:NE;USA:NE] Centroptilum intermediale McDunnough, 1931 (orig.) Procloeon irrubrum Lowen & Flannagan, 1992 [CAN:NE;USA:NE] Procloeon mendax (Walsh), 1862 [CAN:NE;USA:NE] Cloeon mendax Walsh, 1862 (orig.) Procloeon nelsoni Wiersema, 1999 [USA:SW] Procloeon ozburni (McDunnough), 1924 [CAN:NE;USA:NE] Centroptilum ozburni McDunnough, 1924 (orig.) Procloeon pennulatum (Eaton), 1870 [CAN:FN,NE,NW;USA:NE,SE] Centroptilum infrequens McDunnough, 1924 (syn.) Centroptilum pennulatum Eaton, 1870 (orig.) Pseudocentroptilum pennulatum (Eaton), 1870 (comb.) Procloeon quaesitum (McDunnough), 1931 [CAN:NE,NW;USA:NE,SE] Centroptilum quaesitum McDunnough, 1931 (orig.) Procloeon rivulare (Traver), 1935 [CAN:NE;USA:NE,SW] Centroptilum rivulare Traver, 1935 (orig.) Procloeon rubropictum (McDunnough), 1923 [CAN:NE,NW;USA:NE,SE] Cloeon rubropictum McDunnough, 1923 (orig.) Procloeon rufostrigatum (McDunnough), 1924 [CAN:NE;USA:NE,SE] Centroptilum bistrigatum Daggy, 1945 (syn.) Centroptilum rufrostrigatum McDunnough, 1924 (orig.) Procloeon simile (McDunnough), 1924 [CAN:NE;USA:NE,SE] Centroptilum simile McDunnough, 1924 (orig.) Centroptilum similie McDunnough, 1924 (spell.) Procloeon simplex (McDunnough), 1925 [CAN:NE;USA:NE] Cloeon simplex McDunnough, 1925 (orig.) Procloeon texanum McCafferty & Provonsha, 1993 [USA:SE,SW] Procloeon venosum (Traver), 1935 [USA:SW] Centroptilum venosum Traver, 1935 (orig.) Procloeon vicinum (Hagen), 1861 [USA:SE] Cloe vicina Hagen, 1861 (orig.) Cloeon vicinum Hagen, 1861 (emend.) Procloeon viridoculare (Berner), 1940 [CAN:NE;USA:NE,SE] Centroptilum viridocularis Berner, 1940 (orig.) Procloeon viridocularis (Berner), 1940 (comb., spell.) Pseudocentroptiloides morihari Wiersema & McCafferty, 1998 [USA:SW] Centroptilum sp. 2 McCafferty & Davis, 1992 (syn.) Pseudocentroptiloides usa Waltz & McCafferty, 1989 [USA:NE] Pseudocloeon apache (McCafferty & Waltz), 1995 [USA:NW,SW] Labiobaetis apache McCafferty & Waltz, 1995 (orig.) Pseudocloeon dardanum (McDunnough), 1923 [CAN:NE,NW;USA:NE,NW,SW] Baetis dardanus McDunnough, 1923 (orig.) Baetis elachistus Burks, 1953 (syn.) Labiobaetis dardanus (McDunnough), 1923 (comb.) Pseudocloeon ephippiatum (Traver), 1935 [USA:NE,SE,SW] Baetis ephippiatus Traver, 1935 (orig.) Labiobaetis ephippiatus (Traver), 1935 (comb.) Pseudocloeon frondale (McDunnough), 1925 [CAN:NE;USA:NE,SE] Baetis australis Traver, 1932 (syn.) Baetis baeticatus Burks, 1953 (syn.) Baetis frondalis McDunnough, 1925 (orig.) Labiobaetis frondalis (McDunnough), 1925 (comb.) Pseudocloeon longipalpus (Morihara & McCafferty), 1979 [CAN:NE;USA:NE,SE] Baetis longipalpus Morihara & McCafferty, 1979 (orig.) Labiobaetis longipalpus (Morihara & McCafferty), 1979 (comb.) Pseudocloeon propinquum (Walsh), 1863 [CAN:FN,NE,NW;USA:NE,NW,SE,SW] Baetis propinquus (Walsh), 1863 (comb.) Baetis spinosus McDunnough, 1925 (syn.) Cloe propinqua Walsh, 1863 (renam.) Cloe vicina Walsh, 1862 (hom. C. vicina Hagen, 1861) Labiobaetis propinquus (Walsh), 1863 (comb.) Varipes lasiobrachius Lugo-Ortiz & McCafferty, 1998 [MEX:FS] BAETISCIDAE Baetisca becki Schneider & Berner, 1963 [USA:SE] Baetisca berneri Tarter & Kirchner, 1978 [USA:NE,SE] Baetisca callosa Traver, 1931 (dub.) [CAN:NE;USA:SE] Baetisca carolina Traver, 1931 [CAN:NE;USA:NE,SE] Baetisca thomsenae Traver, 1937 (syn.) Baetisca columbiana Edmunds, 1960 [USA:NW] Baetisca escambiensis Berner, 1955 [USA:SE] Baetisca gibbera Berner, 1953 [USA:SE] Baetisca lacustrisMcDunnough, 1932 [CAN:NE,NW;USA:NE,SE] Baetisca bajkovi Neave, 1934 (syn.) Baetisca laurentina McDunnough, 1932 [CAN:FN,NE,NW;USA:NE,SE] Baetisca obesa (Say), 1839 [CAN:FN,NE,NW;USA:NE,SE] Baetis obesa Say, 1839 (orig.) Baetisca rogersi Berner, 1940 [USA:SE] Baetisca rubescens (Provancher), 1878 [CAN:NE;USA:NE,SE] Baetis rubescens (Provancher), 1878 (comb.) Cloe rubescens Provancher, 1878 (orig.) BEHNINGIIDAE Dolania americanaEdmunds & Traver, 1959 [USA:NE,SE] CAENIDAE Amercaenis ridens (McDunnough), 1931 [USA:NE,NW,SE,SW] Caenis ridens McDunnough, 1931 (orig.) Brachycercus arcticus Soldan, 1986 [USA:FN] Brachycercus berneri Soldan, 1986 [USA:SE] Brachycercus floridicola Soldan, 1986 (syn.) Brachycercus sp. A Berner, 1950 (syn.) Brachycercus edmundsi Soldan, 1986 [USA:NW] Brachycercus flavus Traver, 1935 [CAN:NE;USA:NE,SE] Brachycercus lacustris (Needham), 1918 [CAN:NE;USA:NE] Brachycercus idei (Lestage), 1931 (syn.) Brachycercus pallidus (Ide), 1930 (syn.) Caenis lacustris Needham, 1918 (orig.) Eurycaenis idei Lestage, 1931 (syn.) Eurycaenis pallida Ide, 1930 (syn.) Brachycercus maculatus Berner, 1946 [USA:NE,SE,SW] Brachycercus pini Soldan, 1986 (syn.) Brachycercus nasutusSoldan, 1986 [USA:NE,SE] Brachycercus nitidus (Traver), 1932 [USA:NE,SE] Eurycaenis nitidus Traver, 1932 (orig.) Brachycercus prudens (McDunnough), 1931 [CAN:NW;USA:NE,NW,SE,SW] Eurycaenis prudens McDunnough, 1931 (orig.) Brachycercus tuberculatus Soldan, 1986 [USA:NW] Caenis amicaHagen, 1861 [CAN:NE,NW;USA:NE,NW,SE,SW] Caenis simulans McDunnough, 1931 (syn.) Caenis ancepsTraver, 1935 [MEX:FS;USA:NE,SE] Caenis bajaensisAllen & Murvosh, 1983 [MEX:FS,SW;USA:NW,SW] Caenis candidaHarper & Harper, 1981 [CAN:NE] Caenis diminuta diminutaWalker, 1853 [CAN:NE;USA:NE,SE] Caenis diminuta Walker, 1853 (orig.) Caenis hilaris (Say), 1839 [CAN:NE;USA:NE,SE,SW] Ephemera hilaris Say, 1839 (orig.) Caenis latipennis Banks, 1907 [CAN:NE,NW;MEX:FS,SW;USA:NE,NW,SE,SW] Caenis delicata Traver, 1935 (syn.) Caenis forcipata McDunnough, 1931 (syn.) Caenis gigas Burks, 1953 (syn.) Caenis jocosa McDunnough, 1931 (syn.) Caenis macafferti Provonsha, 1990 [USA:NE,SE] Caenis punctata McDunnough, 1931 [CAN:NE;MEX:SW;USA:NE,NW,SE] Caenis tardata McDunnough, 1931 [CAN:NE,NW;USA:NE,NW,SE] Caenis youngi Roemhild, 1984 [CAN:FN,NE,NW;USA:NW] Cercobrachys etowah Soldan, 1986 [USA:SE] Cercobrachys serpentis Soldan, 1986 [USA:NW] EPHEMERELLIDAE Attenella attenuata (McDunnough), 1925 [CAN:NE;USA:NE,SE] Ephemerella attenuata McDunnough, 1925 (orig.) Ephemerella hirsuta Berner, 1946 (syn.) Attenella delantala (Mayo), 1952 [USA:NW] Ephemerella delantala Mayo, 1952 (orig.) Attenella margarita (Needham), 1927 [CAN:NE,NW;USA:NE,NW,SW] Ephemerella margarita Needham, 1927 (orig.) Attenella soquele (Day), 1954 [USA:NW] Ephemerella soquele Day, 1954 (orig.) Caudatella cascadia (Allen & Edmunds), 1961 [USA:NW] Ephemerella cascadia Allen & Edmunds, 1961 (orig.) Caudatella edmundsi (Allen), 1959 [USA:NW] Ephemerella edmundsi Allen, 1959 (orig.) Caudatella heterocaudata californica (Allen & Edmunds), 1961 [USA:SW] Ephemerella heterocaudata californica Allen & Edmunds, 1961 (orig.) Caudatella heterocaudata circia (Allen & Edmunds), 1961 [USA:NW] Ephemerella heterocaudata circia Allen & Edmunds, 1961 (orig.) Caudatella heterocaudata heterocaudata (McDunnough), 1929 [CAN:NW;USA:NW] Ephemerella columbiella McDunnough, 1935 (syn.) Ephemerella heterocaudata McDunnough, 1929 (orig.) Ephemerella heterocaudata heterocaudata McDunnough, 1929 (stat.) Caudatella hystrix (Traver), 1934 [CAN:NW;USA:NW] Ephemerella hystrix Traver, 1934 (orig.) Ephemerella spinosa Mayo, 1951 (syn.) Caudatella jacobi (McDunnough), 1939 [CAN:NW;USA:NW] Ephemerella jacobi McDunnough, 1939 (orig.) Ephemerella orestes Allen & Edmunds, 1961 (syn.) Caurinella idahoensis Allen, 1984 [USA:NW] Dannella lita (Burks), 1949 [CAN:NW;USA:NE,SE] Ephemerella lita Burks, 1949 (orig.) Timpanoga lita (Burks), 1949 (comb.) Dannella provonshai (McCafferty), 1977 [USA:SE] Ephemerella provonshai McCafferty, 1977 (orig.) Timpanoga provonshai (McCafferty), 1977 (comb.) Dannella simplex (McDunnough), 1925 [CAN:FN,NE,NW;USA:NE,SE] Ephemerella simplex McDunnough, 1925 (orig.) Timpanoga simplex (McDunnough), 1925 (comb.) Dentatella bartoni (Allen), 1977 [CAN:NE] Ephemerella bartoni Allen, 1977 (orig.) Eurylophella bartoni (Allen), 1977 (comb.) Dannella bartoni (Allen), 1977 (comb.) Dentatella danutae McCafferty, 2000 [CAN:NE] Drunella allegheniensis (Traver), 1934 [USA:SE]
  • Drunella coloradensis (Dodds), 1923 [CAN:FN,NW;MEX:SW;USA:FN,NW,SW]
  • Drunella cornuta (Morgan), 1911 [CAN:NE;USA:NE,SE]
  • Drunella cornutella (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Drunella doddsi (Needham), 1927 [CAN:FN,NW;USA:FN,NW,SW]
  • Drunella flavilinea (McDunnough), 1926 [CAN:NW;MEX:SW;USA:NW,SW]
  • Drunella grandis flavitincta (McDunnough), 1934 [USA:NW]
  • Drunella grandis grandis (Eaton), 1884 [USA:FN,NW,SW]
  • Drunella grandis ingens (McDunnough), 1934 [CAN:FN,NW;USA:NW,SW]
  • Drunella lata (Morgan), 1911 [CAN:NE;USA:NE,SE]
  • Drunella longicornis (Traver), 1932 [USA:NE,SE]
  • Drunella pelosa (Mayo), 1951 [CAN:NW;USA:NW,SW]
  • Drunella spinifera (Needham), 1927 [CAN:NW;USA:NW,SW]
  • Drunella tuberculata (Morgan), 1911 [CAN:NE;USA:NE,SE]
  • Drunella walkeri (Eaton), 1884 [CAN:NE;USA:NE]

  • Ephemerella alleni Jensen & Edmunds, 1966 [USA:NW]
  • Ephemerella altana Allen, 1968 [MEX:SW;USA:SW]
  • Ephemerella apopsis McCafferty, 1992 [USA:NW]
  • Ephemerella argo Burks, 1947 [USA:NE]
  • Ephemerella aurivillii (Bengtsson), 1908 [CAN:FN,NE,NW;USA:FN,NE,NW]
  • Ephemerella berneri Allen & Edmunds, 1958 [USA:SE]
  • Ephemerella catawba Traver, 1932 [USA:NE,SE]
  • Ephemerella choctawhatchee Berner, 1946 [USA:SE]
  • Ephemerella consimilis Walsh, 1862 (dub.) [USA:NE]
  • Ephemerella crenula Allen & Edmunds, 1965 [USA:SE]
  • Ephemerella dorothea Needham, 1908 [CAN:NE;USA:NE,SE]
  • Ephemerella excrucians Walsh, 1862 [CAN:FN,NE;USA:NE,SE]
  • Ephemerella floripara McCafferty, 1985 [USA:SE]
  • Ephemerella fratercula McDunnough, 1925 [CAN:NE]
  • Ephemerella hispida Allen & Edmunds, 1965 [USA:SE]
  • Ephemerella inconstans Traver, 1932 [USA:SE]
  • Ephemerella inermis Eaton, 1884 [CAN:FN,NW;USA:NW,NE,SW]
  • Ephemerella infrequens McDunnough, 1924 [CAN:NW;USA:FN,NW,SW]
  • Ephemerella invaria (Walker), 1853 [CAN:FN,NE;USA:NE,SE]
  • Ephemerella lacustris Allen & Edmunds, 1965 [USA:FN,NW]
  • Ephemerella maculata Traver, 1934 [USA:NW,SW]
  • Ephemerella moffatae Allen, 1977 [CAN:NW]
  • Ephemerella mollitia Seemann, 1927 [USA:NW,SW]
  • Ephemerella mucronata (Bengtsson), 1909 [CAN:FN]
  • Ephemerella needhami McDunnough, 1925 [CAN:NE;USA:NE,SE]
  • Ephemerella ora Burks, 1949 [USA:NE]
  • Ephemerella quebecensis (Provancher), 1876 (dub.) [CAN:NE]
  • Ephemerella rama Allen, 1968 [USA:NW]
  • Ephemerella rossi Allen & Edmunds, 1965 [USA:SE]
  • Ephemerella rotunda Morgan, 1911 [CAN:NE;USA:NE,SE]
  • Ephemerella septentrionalis McDunnough, 1925 [CAN:NE;USA:NE,SE]
  • Ephemerella simila Allen & Edmunds, 1965 [USA:NE,SE]
  • Ephemerella subvaria McDunnough, 1931 [CAN:NE;USA:NE,SE]
  • Ephemerella unicornis Needham, 1905 (dub.) [USA:NE]
  • Ephemerella verruca Allen & Edmunds, 1965 [USA:NW]

  • Eurylophella aestiva (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Eurylophella bicolor (Clemens), 1913 [CAN:FN,NE;USA:NE,SE]
  • Eurylophella bicoloroides (McDunnough), 1938 [CAN:NE;USA:NE]
  • Eurylophella coxalis (McDunnough), 1926 [CAN:NE;USA:NE]
  • Eurylophella doris (Traver), 1934 [USA:SE]
  • Eurylophella enoensis Funk, 1994 [CAN:NE;USA:NE,SE]
  • Eurylophella funeralis (McDunnough), 1925 [CAN:NE;USA:NE,SE]
  • Eurylophella lodi (Mayo), 1952 [CAN:NW;USA:NW]
  • Eurylophella lutulenta (Clemens), 1913 [CAN:NE;USA:NE,SE]
  • Eurylophella macdunnoughi Funk, 1994 [USA:NE,SE]
  • Eurylophella minimella (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Eurylophella poconoensis Funk, 1994 [USA:NE]
  • Eurylophella prudentalis (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Eurylophella temporalis (McDunnough), 1924 [CAN:FN,NE,NW;USA:NE,SE]
  • Eurylophella verisimilis (McDunnough), 1930 [CAN:NE;USA:NE,SE]

  • Serratella carolina (Berner & Allen), 1961 [USA:SE]
  • Serratella deficiens (Morgan), 1911 [CAN:NE;USA:NE,NW,SE]
  • Serratella frisoni (McDunnough), 1927 [USA:NE,SE]
  • Serratella levis (Day), 1954 [USA:NW]
  • Serratella micheneri (Traver), 1934 [MEX:SW;USA:NW,SW]
  • Serratella molita (McDunnough), 1930 [CAN:NE]
  • Serratella sequoia (Allen & Collins), 1968 [USA:NW]
  • Serratella serrata (Morgan), 1911 [CAN:NE;USA:NE,SE]
  • Serratella serratoides (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Serratella sordida (McDunnough), 1925 [CAN:NE;USA:NE,SE]
  • Serratella spiculosa (Berner & Allen), 1961 [USA:SE]
  • Serratella teresa (Traver), 1934 [CAN:NW;USA:NW,SW]
  • Serratella tibialis (McDunnough), 1924 [CAN:FN,NW:USA:FN;NW,SW]
  • Serratella velmae (Allen & Edmunds), 1963 [USA:NW,SW]

  • Timpanoga hecuba hecuba (Eaton), 1884 [CAN:NW;USA:NW,SW]
  • Timpanoga hecuba pacifica (Allen & Edmunds), 1959 [USA:NW]

    • EPHEMERIDAE

  • Ephemera blanda Traver, 1932 [USA:SE]
  • Ephemera compar Hagen, 1875 [USA:NW] (recently extinct)
  • Ephemera guttulata Pictet, 1843 [CAN:NE;USA:NE,SE]
  • Ephemera simulans Walker, 1853 [CAN:FN,NE,NW;USA:NE,NW,SE,SW]
  • Ephemera traverae Spieth, 1938 [USA:SE]
  • Ephemera triplex Traver, 1935 [USA:SE]
  • Ephemera varia Eaton, 1883 [CAN:NE;USA:NE,SE]
  • Hexagenia albivitta (Walker), 1853 [MEX:FS]

  • Hexagenia atrocaudata McDunnough, 1924 [CAN:NE;USA:NE,SE]
  • Hexagenia bilineata (Say), 1824 [CAN:NE;MEX:FS,SW;USA:NE,SE,SW]
  • Hexagenia limbata (Serville), 1829 [CAN:FN,NE,NW;MEX:FS,SW;USA:NE,NW,SE,SW]
  • Hexagenia mexicana Eaton, 1885 [MEX:FS]
  • Hexagenia orlando Traver, 1931 [USA:SE]
  • Hexagenia rigida McDunnough, 1924 [CAN:NE;USA:NE,SE]

  • Litobrancha recurvata (Morgan), 1913 [CAN:NE;USA:NE,SE]

  • Pentagenia robusta McDunnough, 1926 [USA:NE,SE] (recently extinct)
  • Pentagenia vittigera (Walsh), 1862 [CAN:NE;USA:NE,SE,SW]

    • HEPTAGENIIDAE

  • Acanthomola pubescens Whiting & Lehmkuhl, 1987 [CAN:NW]

  • Anepeorus rusticus McDunnough, 1925 [CAN:NW;USA:NW]
  • Anepeorus simplex (Walsh), 1863 [CAN:NE;USA:NE,SE]

  • Cinygma dimicki McDunnough, 1934 [USA:NW]
  • Cinygma integrum Eaton, 1885 [CAN:NW;USA:NW]
  • Cinygma lyriforme (McDunnough), 1924 [CAN:NW;USA:FN,NW]

  • Cinygmula confusa (McDunnough), 1924 [CAN:NW]
  • Cinygmula gartrelli McDunnough, 1934 [CAN:NW]
  • Cinygmula kootenai McDunnough, 1943 [CAN:NW;USA:NW]
  • Cinygmula mimus (Eaton), 1885 [CAN:FN,NW;USA:NW]
  • Cinygmula par (Eaton), 1885 [CAN:FN,NW;USA:FN,NW,SW]
  • Cinygmula ramaleyi (Dodds), 1923 [CAN:FN,NW;USA:NW]
  • Cinygmula reticulata McDunnough, 1934 [USA:NW]
  • Cinygmula subaequalis (Banks), 1914 [CAN:NE;USA:FN,NE,SE]
  • Cinygmula tarda (McDunnough), 1929 [CAN:FN,NW;USA:NW]
  • Cinygmula tioga Mayo, 1952 [USA:NW]
  • Cinygmula uniformis McDunnough, 1934 [CAN:FN,NW;USA:NW,SW]
  • Epeorus albertae (McDunnough), 1924 [CAN:NE,NW;USA:NW,SW]

  • Epeorus deceptivus (McDunnough), 1924 [CAN:FN,NW;USA:NW,SW]
  • Epeorus dispar (Traver), 1933 [USA:SE]
  • Epeorus dulciana (McDunnough), 1935 [CAN:NW;USA:NW]
  • Epeorus fragilis (Morgan), 1911 [CAN:NE;USA:NE]
  • Epeorus frisoni (Burks), 1946 [USA:NE]
  • Epeorus grandis (McDunnough), 1924 [CAN:FN,NW;USA:NW]
  • Epeorus hesperus (Banks), 1924 [USA:SW]
  • Epeorus lagunitas (Traver), 1935 [USA:NW]
  • Epeorus longimanus (Eaton), 1885 [CAN:FN,NW;USA:FN,NW,SW]
  • Epeorus margarita Edmunds & Allen, 1964 [MEX:SW;USA:SW]
  • Epeorus metlacensis Traver, 1964 [MEX:FS,SW]
  • Epeorus namatus (Burks), 1946 [USA:NE]
  • Epeorus permagnus (Traver), 1935 [CAN:NW;USA:NW]
  • Epeorus pleuralis (Banks), 1910 [CAN:NE;USA:NE,SE]
  • Epeorus punctatus (McDunnough), 1925 [CAN:NE;USA:NE]
  • Epeorus rubidus (Traver), 1933 [USA:SE]
  • Epeorus subpallidus (Traver), 1937 [USA:SE]
  • Epeorus suffusus (McDunnough), 1925 [CAN:NE;USA:NE]
  • Epeorus vitreus (Walker), 1853 [CAN:NE;USA:NE,SE]

  • Heptagenia adaequata McDunnough, 1924 [CAN:NW]
  • Heptagenia culacantha Evans, Botts & Flowers, 1985 [USA:NE]
  • Heptagenia diabasia Burks, 1946 [CAN:NE;USA:NE]
  • Heptagenia dolosa Traver, 1935 [USA:SE]
  • Heptagenia elegantula (Eaton), 1885 [CAN:NE,NW;USA:NE,NW,SW]
  • Heptagenia flavescens (Walsh), 1862 [CAN:FN,NE,NW;USA:NE,NW,SE,SW]
  • Heptagenia julia Traver, 1933 [USA:SE]
  • Heptagenia manifesta (Eaton), 1885 (dub.) [CAN:NE;USA:NE]
  • Heptagenia marginalis Banks, 1910 [CAN:NE;USA:NE,SE]
  • Heptagenia patoka Burks, 1946 [USA:NE]
  • Heptagenia pulla (Clemens), 1913 [CAN:FN,NE,NW;USA:NE]
  • Heptagenia solitaria McDunnough, 1924 [CAN:NWUSA:NW,SW]
  • Heptagenia townesi Traver, 1935 [USA:SE]

  • Ironodes arctus Traver, 1935 [CAN:NW;USA:NW]
  • Ironodes californicus (Banks), 1910 [USA:SW]
  • Ironodes flavipennis Traver, 1935 [CAN:NW]
  • Ironodes geminatus (Eaton), 1885 (dub.) [USA:NW]
  • Ironodes lepidus Traver, 1935 [USA:NW]
  • Ironodes nitidus (Eaton), 1885 [CAN:NW;MEX:SW;USA:NW,SW]

  • Leucrocuta aphrodite (McDunnough), 1926 [CAN:NE;USA:NE,SE]
  • Leucrocuta hebe (McDunnough), 1924 [CAN:FN,NE;USA:NE,SE]
  • Leucrocuta jewetti (Allen), 1966 [CAN:NE;USA:NW]
  • Leucrocuta juno (McDunnough), 1924 [CAN:NE;USA:NE,SE]
  • Leucrocuta maculipennis (Walsh), 1863 [CAN:FN,NE;USA:NE,NW,SE,SW]
  • Leucrocuta minerva (McDunnough), 1924 [CAN:NE;USA:NE,SE]
  • Leucrocuta petersi (Allen), 1966 [USA:NW]
  • Leucrocuta thetis (Traver), 1935 [USA:SE]
  • Leucrocuta umbratica (McDunnough), 1931 [CAN:NE;USA:NE,SE]
  • Leucrocuta walshi (McDunnough), 1926 [CAN:NE;USA:NE]

  • Macdunnoa brunnea Flowers, 1982 [USA:NE,SE]
  • Macdunnoa nipawinia Lehmkuhl, 1979 [CAN:NW]
  • Macdunnoa persimplex (McDunnough), 1929 [USA:NE,NW,SE]

  • Nixe bella (Allen & Cohen), 1977 [MEX:FS]
  • Nixe criddlei (McDunnough), 1927 [CAN:NW;USA:NW,SW]
  • Nixe flowersi McCafferty, 1982 [USA:NE,SE]
  • Nixe horrida (McDunnough), 1926 [CAN:NE;USA:NE]
  • Nixe inconspicua (McDunnough), 1924 [CAN:NE,NW;USA;NE,SE]
  • Nixe kennedyi (McDunnough), 1924 [USA:NW]
  • Nixe lucidipennis (Clemens), 1913 [CAN:NE,NW:USA:NE]
  • Nixe otiosa (McDunnough), 1935 [USA:NW]
  • Nixe perfida (McDunnough), 1926 [CAN:NE;USA:NE,SE]
  • Nixe rodocki (Traver), 1935 [USA:NW]
  • Nixe rosea (Traver), 1935 [USA:NW,SW]
  • Nixe rusticalis (McDunnough), 1931 [CAN:NE,NW;USA:NE]
  • Nixe salvini (Kimmins), 1934 [MEX:SW]
  • Nixe simplicioides (McDunnough), 1924 [CAN:NE,NW;USA:NW,SW]
  • Nixe spinosa (Traver), 1933 [USA:SE]

  • Raptoheptagenia cruentata (Walsh), 1863 [CAN:NE,NW;USA:NE,NW,SE]

  • Rhithrogena amica Traver, 1935 [CAN:NE;USA:NE,SE]
  • Rhithrogena anomala McDunnough, 1928 [CAN:NE;USA:NE,SE]
  • Rhithrogena brunneotincta McDunnough, 1933 [CAN:NE;USA:NE]
  • Rhithrogena decora Day, 1954 [USA:NW]
  • Rhithrogena exilis Traver, 1933 [USA:SE]
  • Rhithrogena fasciata Traver, 1933 [USA:SE]
  • Rhithrogena flavianula (McDunnough), 1924 [USA:NW]
  • Rhithrogena fuscifrons Traver, 1933 [USA:SE]
  • Rhithrogena futilis McDunnough, 1934 [CAN:FN,NW;USA:FN,NW]
  • Rhithrogena gaspeensis McDunnough, 1933 [CAN:NE]
  • Rhithrogena hageni Eaton, 1885 [CAN:NW;USA:NW,SW]
  • Rhithrogena impersonata (McDunnough), 1925 [CAN:NE;USA:NE,SE]
  • Rhithrogena jejuna Eaton, 1885 [CAN:FN,NE,NW;USA:NE,SE]
  • Rhithrogena morrisoni (Banks), 1924 [CAN:NW;MEX:SW;USA:NW,SW]
  • Rhithrogena notialis Allen & Cohen, 1977 [MEX:FS]
  • Rhithrogena pellucida Daggy, 1945 [CAN:NE;USA:NE,NW,SE]
  • Rhithrogena plana Allen & Chao, 1978 [USA:SW]
  • Rhithrogena robusta Dodds, 1923 [CAN:NW;USA:NW,SW]
  • Rhithrogena rubicunda Traver, 1937 [USA:SE]
  • Rhithrogena uhari Traver, 1933 [USA:NE,SE]
  • Rhithrogena undulata (Banks), 1924 [CAN:FN,NE,NW;USA:NE,NW,SW]
  • Rhithrogena virilis McDunnough, 1934 [CAN:NW;USA:NW]
  • Rhithrogena vitta Allen & Chao, 1978 [USA:SW]

  • Stenacron candidum (Traver), 1935 [CAN:NE;USA:NE,SE]
  • Stenacron carolina (Banks), 1914 [CAN:NE;USA:NE,SE]
  • Stenacron floridense (Lewis), 1974 [USA:SE]
  • Stenacron gildersleevei (Traver), 1935 [CAN:NE;USA:NE,SE]
  • Stenacron interpunctatum (Say), 1839 [CAN:NE,NW;USA:NE,NW,SE]
  • Stenacron minnetonka (Daggy), 1945 [USA:NE,SE]
  • Stenacron pallidum (Traver), 1933 [USA:NE,SE]

  • Stenonema bednariki McCafferty, 1981 [USA:SE]
  • Stenonema carlsoni Lewis, 1974 [USA:SE]
  • Stenonema exiguum Traver, 1933 [CAN:NE;USA:NE,SE]
  • Stenonema femoratum (Say), 1823 [CAN:FN,NE,NW;USA:NE,SE,SW]
  • Stenonema flaveolum (Pictet), 1843 (dub.) [CAN:NE]
  • Stenonema ithaca (Clemens & Leonard), 1924 [CAN:NE;USA:NE,SE]
  • Stenonema lenati McCafferty, 1990 [USA:SE]
  • Stenonema luteum (Clemens), 1913 [CAN:NE;USA:NE]
  • Stenonema mediopunctatum arwini Bednarik & McCafferty, 1979 [CAN:NE;USA:NE,SE,SW]
  • Stenonema mediopunctatum mediopunctatum (McDunnough), 1926 [CAN:NE;USA:NE,SE]
  • Stenonema meririvulanum Carle & Lewis, 1978 [USA:NE,SE]
  • Stenonema mexicanum integrum (McDunnough), 1924 [CAN:NE;MEX:SW;USA:NE,SE,SW]
  • Stenonema mexicanum mexicanum (Ulmer), 1920 [MEX:FS]
  • Stenonema modestum (Banks), 1910 [CAN:NE;USA:NE,SE]
  • Stenonema pudicum (Hagen), 1861 [USA:NE,SE]
  • Stenonema pulchellum (Walsh), 1862 [CAN:NE;USA:NE,SE]
  • Stenonema sinclairi Lewis, 1979 [USA:SE]
  • Stenonema smithae Traver, 1937 [USA:SE]
  • Stenonema terminatum placitum (Banks), 1910 [CAN:NE;USA:NE]
  • Stenonema terminatum terminatum (Walsh), 1862 [CAN:NE,NW:USA:NE,NW,SE,SW]
  • Stenonema vicarium (Walker), 1853 [CAN:FN,NE,NW;USA:NE,SE]

    • ISONYCHIIDAE

  • Isonychia arida (Say), 1839 [USA:NE,SE]
  • Isonychia berneri Kondratieff & Voshell, 1984 [USA:SE]
  • Isonychia bicolor (Walker), 1853 [CAN:NE;USA:NE,SE]
  • Isonychia campestris McDunnough, 1931 [CAN:NE,NW;USA:NW]
  • Isonychia diversa Traver, 1934 [USA:SE]
  • Isonychia georgiae McDunnough, 1931 [USA:SE]
  • Isonychia hoffmani Kondratieff & Voshell, 1984 [USA:SE]
  • Isonychia intermedia (Eaton), 1885 [MEX:SW;USA:SW]
  • Isonychia notata Traver, 1932 [USA:SE]
  • Isonychia obscura Traver, 1932 [USA:NE,SE]
  • Isonychia rufa McDunnough, 1931 [CAN:NE;USA:NE,NW,SE]
  • Isonychia sayi Burks, 1953 [USA:NE,SE]
  • Isonychia serrata Traver, 1932 [USA:SE]
  • Isonychia sicca (Walsh), 1862 [CAN:NE;MEX:FS,SW:USA:NE,SE,SW]
  • Isonychia similis Traver, 1932 [USA:SE]
  • Isonychia tusculanensis Berner, 1948 [USA:SE]
  • Isonychia velma Needham, 1932 [USA:NW]

    • LEPTOHYPHIDAE

  • Allenhyphes michaeli (Allen), 1978 [MEX:SW;USA:SW]
  • Allenhyphes vescus (Allen), 1978 [MEX:SW;USA:SW]

  • Asioplax corpulenta (Kilgore & Allen), 1973 [USA:NW,SW]
  • Asioplax dolani (Allen), 1967 [USA:SE,SW]
  • Asioplax edmundsi (Allen), 1967 [USA:NW,SW]
  • Asioplax texana (Traver), 1935 [MEX:SW;USA:SW]

  • Homoleptohyphes dimorphus (Allen), 1967 [MEX:SW;USA:SW]
  • Homoleptohyphes mirus (Allen), 1967 [MEX:SW;USA:SW]
  • Homoleptohyphes quercus (Kilgore & Allen), 1973 [USA:SW]

  • Leptohyphes alleni Brusca, 1971 [MEX:FS]
  • Leptohyphes berneri Traver, 1958 [MEX:FS]
  • Leptohyphes brunneus Allen & Brusca, 1973 [MEX:FS,SW]
  • Leptohyphes castaneus Allen, 1967 [MEX:FS]
  • Leptohyphes lestes Allen & Brusca, 1973 [MEX:FS]
  • Leptohyphes nigripunctus Traver, 1943 [MEX:FS]
  • Leptohyphes pilosus Allen & Brusca, 1973 [MEX:FS]
  • Leptohyphes sabinas Traver, 1958 [MEX:FS,SW;USA:SW]
  • Leptohyphes spiculatus Allen & Brusca, 1973 [MEX:FS]
  • Leptohyphes tarsos Allen & Murvosh, 1987 [MEX:SW]
  • Leptohyphes zalope Traver, 1958 [MEX:FS,SW:USA:SW,NW]

  • Tricoryhyphes condylus (Allen), 1967 [MEX:SW;USA:SW]
  • Tricoryhyphes mulaiki (Traver), 1959 [MEX:FS]

  • Tricorythodes albilineatus Berner, 1946 [USA:SE,SW]
  • Tricorythodes allectus (Needham), 1905 [CAN:NE;USA:NE,SE]
  • Tricorythodes angulatus Traver, 1959 [MEX:FS?]
  • Tricorythodes cobbi Alba-Tercedor & Flannagan, 1995 [CAN:NE]
  • Tricorythodes comus Traver, 1959 [MEX:FS]
  • Tricorythodes curvatus Allen, 1977 [USA:SE,SW]
  • Tricorythodes explicatus (Eaton), 1892 [MEX:SW;USA:NW,SW]
  • Tricorythodes fictus Traver, 1935 [MEX:SW;USA:SW]
  • Tricorythodes minutus Traver, 1935 [CAN:NE,NW;USA:NE,NW,SW]
  • Tricorythodes mosegus Alba-Tercedor & Flannagan, 1995 [CAN:NE;USA:NE]
  • Tricorythodes notatus Allen & Brusca, 1973 [MEX:FS]
  • Tricorythodes robacki (Allen), 1967 [USA:NE,SW]
  • Tricorythodes stygiatus McDunnough, 1931 [CAN:NE;USA:NE,SE]
  • Tricorythodes texanus Traver, 1935 [MEX:SW;USA:SW]
  • Tricorythodes ulmeri Allen & Brusca, 1973 [MEX:FS]

  • Tricorythopsis dicinctus (Allen & Brusca), 1973 [MEX:FS]

  • Vacupernius packeri (Allen), 1967 [MEX:FS,SW;USA:SW]
  • Vacupernius paraguttatus (Allen), 1978 [USA:SW]

    • LEPTOPHLEBIIDAE

  • Choroterpes albiannulata McDunnough, 1924 [CAN:NW;USA:NW]
  • Choroterpes basalis (Banks), 1900 [CAN:NE;USA:NE,SE]
  • Choroterpes inornata Eaton, 1892 [MEX:SW;USA:NW,SW]
  • Choroterpes terratoma Seemann, 1927 [USA:NW,SW]
  • Choroterpes ungulus Lugo-Ortiz & McCafferty, 1996 [MEX:FS]

  • Farrodes maya Dominguez, 1999 [MEX:FS]
  • Farrodes mexicanus Dominguez, 1999 [MEX:FS]
  • Farrodes otiesa Lugo-Ortiz & McCafferty, 1999 [MEX:SW]
  • Farrodes texanus Davis, 1987 [MEX:FS,SW;USA:SW]
  • Farrodes tulija Dominguez, Molineri & Peters, 1996 [MEX:FS]

  • Habrophlebia vibrans Needham, 1907 [CAN:NE;USA:NE,SE]

  • Habrophlebiodes americana (Banks), 1903 [CAN:NE;USA:NE,SE]
  • Habrophlebiodes annulata Traver, 1934 [USA:SE]
  • Habrophlebiodes brunneipennis Berner, 1946 [USA:SE]
  • Habrophlebiodes celeteria Berner, 1975 [USA:SE]

  • Hydrosmilodon primanus (Eaton), 1892 [MEX:FS]

  • Leptophlebia austrina (Traver), 1932 [USA:SE]
  • Leptophlebia bradleyi Needham, 1932 [USA:NE,SE,SW]
  • Leptophlebia collina (Traver), 1932 [USA:SE]
  • Leptophlebia cupida (Say), 1823 [CAN:NE,NW;USA:NE,NW,SE]
  • Leptophlebia grandis (Traver), 1932 [USA:SE]
  • Leptophlebia gravastella (Eaton), 1884 [CAN:NW;USA:NW]
  • Leptophlebia intermedia (Traver), 1932 [USA:NE,SE]
  • Leptophlebia johnsoni McDunnough, 1924 [CAN:NE;USA:NE,SE]
  • Leptophlebia nebulosa (Walker), 1853 [CAN:FN,NE,NW;USA:NE,NW]
  • Leptophlebia pacifica (McDunnough), 1933 [USA:NW]

  • Neochoroterpes kossi (Allen), 1974 [USA:SW]
  • Neochoroterpes nanita (Traver), 1934 [USA:SW]
  • Neochoroterpes oklahoma (Traver), 1934 [MEX:FS,SW;USA:NW,SW]
  • Neochoroterpes orientalis Henry, 1993 [MEX:FS]

  • Paraleptophlebia adoptiva (McDunnough), 1929 [CAN:NE,NW;USA:NE,SE]
  • Paraleptophlebia altana Kilgore & Allen, 1973 [USA:SW]
  • Paraleptophlebia aquilina Harper & Harper, 1986 [USA:NW]
  • Paraleptophlebia assimilis (Banks), 1914 [USA:NE,SE]
  • Paraleptophlebia associata (McDunnough), 1924 [USA:NW]
  • Paraleptophlebia bicornuta (McDunnough), 1926 [CAN:NW;USA:NW]
  • Paraleptophlebia brunneipennis (McDunnough), 1924 [CAN:NW;USA:NW]
  • Paraleptophlebia cachea Day, 1954 [USA:NW]
  • Paraleptophlebia calcarica Robotham & Allen, 1988 [USA:SE]
  • Paraleptophlebia californica Traver, 1934 [USA:SW]
  • Paraleptophlebia clara (McDunnough), 1933 [USA:SW]
  • Paraleptophlebia debilis (Walker), 1853 [CAN:FN,NE,NW;USA:NE,NW,SE]
  • Paraleptophlebia falcula Traver, 1934 [USA:NW]
  • Paraleptophlebia georgiana Traver, 1934 [USA:SE]
  • Paraleptophlebia gregalis (Eaton), 1884 [CAN:NW;USA:NW]
  • Paraleptophlebia guttata (McDunnough), 1924 [CAN:FN,NE;USA:NE,SE]
  • Paraleptophlebia helena Day, 1952 [USA:NW]
  • Paraleptophlebia heteronea (McDunnough), 1924 [CAN:NW;USA:NW]
  • Paraleptophlebia jeanae Berner, 1955 [USA:NE,SE]
  • Paraleptophlebia jenseni McCafferty & Kondratieff, 1999 [USA:NW]
  • Paraleptophlebia kirchneri Kondratieff & Durfee, 1994 [USA:SE]
  • Paraleptophlebia memorialis (Eaton), 1884 [CAN:NW;MEX:SW;USA:NW,SW]
  • Paraleptophlebia moerens (McDunnough), 1924 [CAN:FN,NE,NW;USA:NE,SE]
  • Paraleptophlebia mollis (Eaton), 1871 [CAN:NE;USA:NE,SE]
  • Paraleptophlebia ontario (McDunnough), 1926 [CAN:NE;USA:NE,SE]
  • Paraleptophlebia packi (Needham), 1927 [USA:NW]
  • Paraleptophlebia placeri Mayo, 1939 [USA:NW]
  • Paraleptophlebia praepedita (Eaton), 1884 [CAN:NE,NW;USA:NE,SE]
  • Paraleptophlebia quisquilia Day, 1952 [USA:NW]
  • Paraleptophlebia rufivenosa (Eaton), 1884 [CAN:NW;USA:NW]
  • Paraleptophlebia sculleni Traver, 1934 [USA:NW]
  • Paraleptophlebia sticta Burks, 1953 [USA:NE]
  • Paraleptophlebia strigula (McDunnough), 1932 [CAN:NE;USA:NE]
  • Paraleptophlebia swannanoa (Traver), 1932 [USA:SE]
  • Paraleptophlebia temporalis (McDunnough), 1926 [CAN:NW;USA:NW]
  • Paraleptophlebia traverae McCafferty & Kondratieff, 1999 [USA:NW]
  • Paraleptophlebia vaciva (Eaton), 1884 [CAN:NW;USA:NW]
  • Paraleptophlebia volitans (McDunnough), 1924 [CAN:NE;USA:NE,SE]
  • Paraleptophlebia zayante Day, 1952 [USA:SW]

  • Thraulodes brunneus Koss, 1966 [MEX:FS,SW;USA:SW]
  • Thraulodes eccentricus Lugo-Ortiz & McCafferty, 1996 [MEX:FS,SW]
  • Thraulodes ephippiatus Traver & Edmunds, 1967 [MEX:FS]
  • Thraulodes gonzalesi Traver & Edmunds, 1967 [MEX:FS,SW;USA:SW]
  • Thraulodes hilaris (Eaton), 1892 [MEX:FS]
  • Thraulodes humeralis Navas, 1935 [MEX:FS]
  • Thraulodes lunatus Traver & Edmunds, 1967 [MEX:FS,SW]
  • Thraulodes mexicanus (Eaton), 1884 [MEX:FS]
  • Thraulodes packeri Traver & Edmunds, 1967 [MEX:FS]
  • Thraulodes spangleri Traver & Edmunds, 1967 [MEX:FS]
  • Thraulodes speciosus Traver, 1934 [MEX:FS,SW;USA:SW]
  • Thraulodes tenulineus Lugo-Ortiz & McCafferty, 1996 [MEX:FS,SW]
  • Thraulodes zonalis Traver & Edmunds, 1967 [MEX:FS]

  • Traverella albertana (McDunnough), 1931 [CAN:NW;MEX:FS,SW;USA:NW,SW]
  • Traverella lewisi Allen, 1973 [USA:NE,NW,SE]
  • Traverella longifrons Lugo-Ortiz & McCafferty, 1996 [MEX:FS]
  • Traverella presidiana (Traver), 1934 [MEX:FS,SW;USA:SW]
  • Traverella promifrons Lugo-Ortiz & McCafferty, 1996 [MEX:FS,SW]
  • Traverella sallei (Navas), 1935 [MEX]

    • METRETOPODIDAE

  • Metretopus alter Bengtsson, 1930 [USA:FN]
  • Metretopus borealis (Eaton), 1871 [CAN:FN,NE,NW;USA:NE]

  • Siphloplecton basale (Walker), 1853 [CAN:NE,NW;USA:NE]
  • Siphloplecton brunneum Berner, 1978 [USA:SE]
  • Siphloplecton costalense Spieth, 1938 [USA:SE]
  • Siphloplecton fuscum Berner, 1978 [USA:SE]
  • Siphloplecton interlineatum (Walsh), 1863 [CAN:FN,NE,NW;USA:NE]
  • Siphloplecton simile Berner, 1978 [USA:SE]
  • Siphloplecton speciosum Traver, 1932 [USA:SE]

    • NEOEPHEMERIDAE

  • Neoephemera bicolor McDunnough, 1925 [CAN:NE;USA:NE]
  • Neoephemera compressa Berner, 1956 [USA:SE]
  • Neoephemera purpurea (Traver), 1931 [USA:SE]
  • Neoephemera youngi Berner, 1953 [USA:SE]

    • OLIGONEURIIDAE

  • Homoeoneuria alleni Pescador & Peters, 1980 [MEX:SW;USA:NW,SW]
  • Homoeoneuria ammophila (Spieth), 1938 [USA:NE]
  • Homoeoneuria cahabensis Pescador & Peters, 1980 [USA:SE]
  • Homoeoneuria dolani Edmunds, Berner & Traver, 1958 [USA:SE]
  • Homoeoneuria salviniae Eaton, 1881 [MEX:FS]

  • Lachlania dencyannae Koss, 1970 [USA:SW]
  • Lachlania iops Allen & Chao, 1977 [MEX:FS,SW]
  • Lachlania saskatchewanensis Ide, 1941 [CAN:NW;MEX:SW;USA:NW,SW]