California Department of Fish and Wildlife
Aquatic Biological Assement

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Tanyderidae Level 1 Level 2

Tanyderidae

 

Key Characters

Long filamentous processes on last 2 abdominal segments.Pairs of filamentous processes arising laterally on 2nd to last segment, dorsolaterally on terminal segment. Prolegs may be present on last abdominal segment, but never on prothorax.
Tolerance 1
Distribution CA, OR