Gymnopternus rohdendorfi (Stackelberg, 1933), comb. nov.

Material examined. 1♂, Primorye, Anisimovka, 450 m, 43.13°N, 132.80°E, 21– 24.07.2018, N. Vikhrev (ZMMU) .

Distribution. Type locality: Russia: “Ussuri Gebiet, beim Dorf Jakovlevka, Distr. Spassk.” Palaearctic: Russia (Khabarovsk, Primorye, Yakutia).

Notes. Hercostomus rohdendorfi characters correspond to the genus Gymnopternus (as defined by Brooks 2005), including nearly straight wing vein M, R 4+5 and M subparallel, pleuron with a cluster of fine setulae in front of the posterior spiracle (not mentioned by Stackelberg 1934), fore tibia with an anterodorsal comb-like row of strong setae, hypopygium morphology etc.