California Department of Fish and Wildlife
Aquatic Biological Assement

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Philopotamidae Level 1 Level 2

Philopotamidae

 

Key Characters

Meso- metanotum, abdominal segment IX membranous. Labrum membranous and T-shaped. Fixed, sac-like silk retreats ("finger-net caddis or silken-tube spinners"). Filter food particles with their retreats
Tolerance 2-4
Distribution CA, OR, WA, NV, AZ