Key to Eulithis testata and Eulithis achatinellaria by wing pattern

1. On forewing on upper side apical white oblique stroke (a remnant of the submarginal line) does not touch postmedial line, if (rarely) touches, it is reaches vein M2; on underside postmedial line vein M2 is straight. On hindwing on upper side submarginal line is almost smooth or slightly wavy, on underside—smooth................................... E. testata (Fig. 36).

- On forewing on upper side apical white oblique stroke is merged with the postmedial line at vein M1; on underside postmedial line before vein M2 is arched inward. On the hindwing on upper and under sides the submarginal line is distinctly toothed on veins M3-Cu2.................................................................... E. achatinellaria (Fig. 35).