Hydrotaea tuberculata Rondani, 1866

Material examined. RUSSIA: Altai Republic: 1♂, Ulagansky district, Iolgu River valley, 50.08°N 88.96°E, 2000 m asl, on Euphorbia flowers, 18.06.2005, leg. V. Sorokina (ISEA).

Other records: AZERBAIJAN: 1♂, Lankaran district, Khanbulan (38.66°N 48.78°E), 19.10.2008, leg. N. Vikhrev (ZMUM) (new record for the country). RUSSIA: 1♂, Amur reg., 40 km W of Svobodny (51.46°N 127.59°E), 27.07.1958, leg. Gerasimova (ZIN) ; 1♂, Astrakhan reg., Baskunchak salt-lake, 48.193°N 46.813°E, 2– 4.05.2010, leg. K. Tomkovich ; 1♂, Buryatia reg., Baisa, 53.95°N 113.60°E, 28.06.1969, leg. V. Zherikhin ; 1♂ 1♀, Irkutsk reg., Ust-Kut env., 56.8°N 105.8°E, 25.07.1979, leg. G. Veselkin ; 1♂, Magadan reg., Sokol env., 59.92°N 150.71°E, 11– 19.07.2014, leg. N. Vikhrev ; 1♂ 1♀, Mordovia reg., Mordovsky NR, 54.8°N 43.3°E, pasture, 30.06.1982, leg. G. Veselkin (all in ZMUM).

Remarks. Hydrotaea tuberculata Rondani, 1866 is a widespread but not very common species. The new records for Russia listed above show that compared to the related Hydrotaea hsiai Fan, 1965 this species is distributed in the more humid and northern parts of Asia.

Distribution. Holarctic.