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1.         Anal claw with 3 or 4 conspicuous teeth along ventral, concave margin. Only one species in             Ohio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Psychomyia flavida Hagen

            Anal claw without teeth on ventral, concave margin. Only one species in Ohio . . . . . . . . . . . . .             . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Lype diversa Banks