Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species of Greatest Conservation Need (SGCN)

Distribution and abundance of wildlife species, including low and declining populations, are indicative of the diversity and health of the Commonwealth's natural resources. The Species of Greatest Conservation Need (SGCN) list was created by using a selection matrix that brought together lists of species identified by other groups as imperiled, or in decline. Within the SGCN list, species are classified into four tiers that were developed to identify the relative importance of conservation need for each species.

Current tiered list of Species of Greatest Conservation Need:

Aquatic Crustaceans
Terrestrial Insects
Other Terrestrial Invertebrates
Aquatic Insects

Virginia Department of Game and Inland Fisheries (VDGIF)