Tetartopeus lentus RYVKIN, 1989

(Figs 7, 9-10)

Material examined: Russia: 1, 1, N-Mongolia, " Shangai ", leg. Leder (NHMW, cAss).

Comment: Tetartopeus lentus was originally described from the Transbaikal region; the aedeagus is illustrated by RYVKIN (1989). The previously unknown female secondary sexual characters are as follows:

: tergite VIII (Fig. 9) transverse, with almost truncate and in the middle weakly pointed posterior margin; sternite VIII (Fig. 7) much longer than tergite VIII, posteriorly produced and broadly truncate; tergite IX (Fig. 10) deeply and narrow incised posteriorly.

The above specimens represent the first record from Mongolia.