California Department of Fish and Wildlife
Aquatic Biological Assement

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Blephariceridae Level 1 Level 2



Key Characters

"Net-winged midges", highly adapted to fast currents. Body flattened, 7 "segments": head, thorax, 1st abdominal fused to form 1 segment. 1st 6 segments with a ventral sucker, tracheal gills present on ventral side.

Tolerance 0
Distribution CA, OR, WA, NV