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Stoneflies - Plecoptera: Capniidae (Winter Stoneflies) of Gunnison County, Colorado
Female key to Genera

Updated 11Mar2005

1a. Vein R1 of forewing curved anteriorly just past origin.
1b. Vein R1 of forewing straight or flat at origin.
2a. Epiproct forked, with one process over other in same plane.
2b. Epiproct not forked
3a. Cerci with less than (<) 11 segments.
3b. Cerci with more than (>) 11 segments.

Good Links

On this website:
      Key to Capnia Males
      Key to Capnia Nymphs
Brown, Wendy S. 2004 Plecoptera or Stoneflies of Gunnison County, Colorado