The Purdue Entomological Research Collections (PERC) are an integral and invaluable part of the entomological program at Purdue in that they represent the diversity and distribution of those organisms that are in essence the subject of entomological study. The primary functions of PERC are:

• To provide a reference source for implementing the accurate and timely identification of insects for research, extension, and teaching needs.
  
  
• To serve as a database for systematic research at Purdue and by specialists throughout the world.
  
  
• To serve as a repository for voucher specimens from field and laboratory research.
  
  
• To provide a facility for maintaining representatives of the insect fauna of Indiana habitats and surrounding regions.