Published online by Cambridge University Press: 31 May 2012
Length to tip of wings: ♂ 12 mm. ♀ 14 mm.; expanse ♂ 21 mm., ♀ 25 mm.
Head (exclusive of eyes ) somewhat wider than prothorax, yellow with obscure light brown markings; lateral tubercles small, pale; ocelli ringed with black, the black sometimes extending a short distance forward and/or toward the eyes. Antennae yellow at base, brown toward the tips, palpi brownish.
1 Needham, J. G., and P. W. Classsen, 1925. A monograph of the Plecoptera or stoneflies of America north of Mexico. Thomas Say Foundation of Ent. Soc. Am., Vol. 2.
2 Neave, Ferris. 1934. Stoneflies from the Purcell Range, B.C. Can. Ent. 66: 1–6.
3 Neave, Ferris. 1933. Some new stoneflies from western Canada. Can. Ent. 65: 235–238.