1. Tibial fine fringe setae sparse and about half as long as median outer marginal seta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Tibial fine fringe more abundant and about as long as median out marginal setae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sweltsa onkos (not in Ohio)
2. Metanotal wingpads with less than five intercalary setae . . . . . . . Sweltsa hoffmani
Metanotal wingpads with at least 10 intercalary setae . . . . . . . . . . . . . . . . . . . . . . 3
3. Longest cercal setae on ca. segment 12 subequal in length to two cercal segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sweltsa lateralis
Longest cercal setae about as long as 1.5 cercal segments. . . Sweltsa pocahontas*
*not reported in Ohio
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Key to the Species of Ohio Sweltsa Nymphs