Key to the Caucasian species of Mniophila STEPHENS, 1831

1. Aedeagus ventrally with apicalA/4 more or less sharply narrowed to apex (Fig. 6 L-N), the latter rather wide, straight; hind tibiae less curved; first protarsomere of male longer and thinner (Fig. 6F); last metatarsomere thicker (Fig. 6G); eyes more convex, ocular sulci and frontal calli more developed; apical antennal segments longer (Fig. 6K); pronotum longer (Fig. 6E); notch between metathoracic cavities concave (Fig. 6H). ..... M. caucasica sp. n.

– Aedeagus ventrally with apical third gradually narrowed to apex (Fig. 7J, K), apex obtuse; hind tibiae distinctly curved, first tarsomeres shorter and thicker (Fig.GI); last metatarsomere thinner (Fig. 7H); eyes more flattened (Fig.GE); ocular sulci and frontal calli less developed; apical antennal segments shorter and thicker (Fig. 7D); pronotum shorter (Fig. 7B); notch between metathoracic cavities straight (Fig. 7C). ........................ M. transcaucasica sp. n.