California Department of Fish and Wildlife
Aquatic Biological Assement

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Sisyridae Level 1 Level 2



Key Characters

Small, stout terminal instars with conspicuous setae, body color yellow-brown or dark green. Elongate, unsegemented mouthparts, relatively long antennae. 2nd and 3rd instars have transparent 2-3 segmented ventral gills on abdominal segments 1-7.

Tolerance unknown
Distribution CA, OR