Home | Map | FAQ | Flyfishing Entomology |
WA Stonefly Description |
Taxonomic Name (Common Name) | Nymph | Adult |
Capniidae (Slender Winter Stonefly) | Abdominal terga widest posterially; paraglossa and glossa about equal in length. |
Bolshecapnia (Tiny Black Stone) | (no photo) | (no photo) |
  | Males have a ventral vestigal on 9th sternum and are large in size. | |
Bolshecapnia sasquatchi |
Capnura (Tiny Black Stone) | (no photo) | (no photo) |
  | Epiproct is divided into an upper and lower limb, neither laterally divided.. | Males w/ wing shortening; found in small and ephemeral streams draining foothill regions. |
Capnura elevata | ||
Capnura venosa |
Eucapnopsis (Tiny Black Stone) | (no photo) | adult Copyright © 2011 Brady Richards |
  | ||
Eucapnopsis brevicauda |
Isocapnia (Tiny Black Stone) | (no photo) | (no photo) |
  | Have long vertical swimming hairs fringing cerci. | |
Isocapnia abbreviata | ||
Isocapnia agassizi | ||
Isocapnia grandis | ||
Isocapnia palousa | ||
Isocapnia rickeri | ||
Isocapnia spenceri | ||
Isocapnia vedderensis |
Mesocapnia (Tiny Black Stone) | (no photo) | (no photo) |
  | Males w/epiproct tip constricted as a narrow spine; females w/nipple on midline of subgenital plate projecting to rear. | Some species have shortened wings, with shortening more noticible in males than females. |
Mesocapnia autumna | ||
Mesocapnia oenone | ||
Mesocapnia porrecta | ||
Mesocapnia projecta |
Paracapnia (Tiny Black Stone) | (no photo) | (no photo) |
  | Both adults and nymphs exhibit extreme harriness, even in 1st instar. | Males have thin, tubular epeproct, regularly have shortened wings, while females are usually long-winged. |
Paracapnia ensicala |
State of Washington distribution is based on: Valid Stonefly Names for North America.
Created: 08/16/2013 Last modified: 12/08/2014 www.FlyfishingEntomology.com