The Essig Museum of Entomology
The Essig Museum is one of the largest and most active university-based entomology research collections in the world. With over five million specimens - and growing - the Essig is the most comprehensive collection of California arthropods (insects, spiders, and their kin) dating back to the 1890’s, plus many specimens from other western states, Mexico, Costa Rica, the Pacific Islands, Chile and Australia. Cal researchers, along with national and international colleagues, use these collections to identify and describe new species, reconstruct evolutionary histories, track the movement of pests, and investigate the impact of environmental change on arthropod populations and distributions. Learn more at essig.berkeley.edu.