| 1a. Conspicuous denticles present along margins on ventral cusps of both mandiles.
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| 1b. Conspicuous denticles present along margins on ventral cusps of right mandible only.
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| 1a. Conspicuous denticles present along margins on ventral cusps of both mandiles.
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| 1b. Conspicuous denticles present along margins on ventral cusps of right mandible only.
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ReferencesBaumann,RW; Gaufin,AR; Surdick,RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208.LinksKey to Isogenoides Females of Gunnison CountyKey to Isogenoides Males of Gunnison County |