Mecomma ambulans (Fallén, 1807)

Widely distributed in the Palaearctic Region. So far has not been recorded from Latvia and Mongolia.

Material examined: LATVIA: Ukri [former Shavel' Uezd, Kovensk Government], 56.33333 ° N 23.05 ° E, 25 Jul 1907, Birshert, 13 (AMNH _PBI 00310692), 1Ƥ (AMNH _PBI 00310843) (ZISP). MONGOLIA: North Hangay Aimak: Urto-Tamir river, Tsetserleg [Tsain-Shabi], Khangaisk, 47.5 ° N 101.45 ° E, 0 5 Jul 1928, Kondratieva, 1Ƥ (AMNH _PBI 00310688).