Archichauliodes diversus

Common Name: Dobson Fly, Toe Biter.
Description: Large nymphs with a long thin gray body and a jet black head featuring two large 'pincers'. Each abdominal section has an obvious leg like appendage protruding from it which is in fact a gill. These nmphs get quite large, up to #4 Hook Size. Adults are around 2 to 3 inches long which huge clear wings, probably best represented by any of the various cicada patterns. Adults only become available to trout when blown back onto the wter as the nymph leaves the river to hatch under a close by rock. Nymphs are available in a range of sizes most of the season, although being strong they are able to cling to the bottom in all but the stongest flows and only get dislodged by flood events