California Department of Fish and Wildlife
Aquatic Biological Assement

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Empididae Level 1 Level 2

Empididae

 

Key Characters

"Dancing flies." Head very reduced. 7 or 8 pairs of abdominal prolegs w/ hooked spines, caudal lobes w/ hairs. Separated from Athericidae by lack of pseudopods, and forked post filaments.
Tolerance 6
Distribution CA, OR, WA