California Department of Fish and Wildlife

Threatened and Endangered Invertebrates

Species Accounts

The list below provides access to species accounts for 32 species and subspecies of invertebrates listed as either threatened or endangered by the State of California or the federal government. This list is in alphabetical order, by the general name of the animal (for example: snail, beetle, butterfly, etc.).

Each species account contains the latest status report from the Department of Fish and Wildlife's periodic report on the status of these species. Each account also may contain links to additional, available status or life history information.

The list and the accompanying species accounts may not be complete or reflect the current legal status of these invertebrates because of listing activities more recent than the status accounts in the links below. The current legal status for each species (PDF) is provided online and is updated quarterly.

Common Name Scientific Name
abalone, white (Haliotis sorenseni)
snail, Morro shoulderband (= banded dune) (Helminthoglypta walkeriana)
snail, Trinity bristle (Monadenia setosa)
crayfish, Shasta (=placid crayfish) (Pacifastacus fortis)
fairy shrimp, conservancy (Branchinecta conservatio)
fairy shrimp, longhorn (Branchinecta longiantenna)
fairy shrimp, Riverside (Streptocephalus woottoni)
fairy shrimp, San Diego (Branchinecta sandiegoensis)
fairy shrimp, vernal pool (Branchinecta lynchi)
tadpole shrimp, vernal pool (Lepidurus packardi)
freshwater shrimp, California (Syncaris pacifica)
beetle, Delta green ground (Elaphrus viridis)
beetle, Mount Hermon June (Polyphylla barbata)
beetle, Ohlone tiger (Cicindela ohlone)
beetle, valley elderberry longhorn (Desmocerus californicus dimorphus)
butterfly, bay checkerspot (Euphydryas editha bayensis)
butterfly, Behren's silverspot (Speyeria zerene behrensii)
butterfly, Callippe silverspot (Speyeria callippe callippe)
butterfly, El Segundo blue (Euphilotes battoides allyni)
butterfly, Lange's metalmark (Apodemia mormo langei)
butterfly, lotis blue (Lycaeides argyrognomon lotis)
butterfly, mission blue (Icaricia icarioides missionensis)
butterfly, Myrtle's silverspot (Speyeria zerene myrtleae)
butterfly, Oregon silverspot (Speyeria zerene hippolyta)
butterfly, Palos Verdes blue (Glaucopsyche lygdamus palosverdesensis)
butterfly, San Bruno elfin (Incisalia (= Callophrys) mossii bayensis)
butterfly, Smith's blue (Euphilotes enoptes smithi)
checkerspot, Quino (Euphydryas editha quino)
fly, Delhi Sands flower-loving (Rhaphiomidas terminatus abdominalis)
grasshopper, Zayante band-winged (Trimerotropis infantilis)
moth, Kern primrose sphinx (Euproserpinus euterpe)
skipper, Laguna Mountains (Pyrgus ruralis lagunae)