Key to the species of the genus Microtachycines

1 Epiproct of male narrowing to apex and apex deeply incised (Fig. 1).................. M. tamdaonensis Gorochov, 1992

- Epiproct of male almost not narrowing to apex and apex shallowly incised (Figs. 6, 10)..............................2

2 Hind femora armed with 7–9 spines ventrally; outer lobes of male genitalia with a large basal projection (Fig. 8)............................................................................................. .. M. elongatus sp. nov.

- Hind femora armed with 4–6 spines ventrally; outer lobes of male genitalia without basal projection (Fig. 11).................................................................................................... M. fallax sp. nov.