1. Gills with dark pigmentation of some trachea broken up (not pigmented) at about two-thirds distance from base and at base of basal two or threee thracheal side-branches; femora with dark subdistal band or partial band; parthenogenic (not known in Ohio). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Neocloeon triangulifer
Gills with dark pigmentation broken only near base of basal two or three trachaeal branches; femora without dark subdistal band, sometime faint brown mark at about mid-length of femora; sexual species. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Neocloeon alamance