Megachilid bees (Hymenoptera: Megachilidae) of the forest-steppe and steppe zones of the West Siberian Plain to the eastward of Irtysh River Author Byvaltsev, A. M. Author Belova, K. A. Author Danilov, Yu. N. Author Molodtsov, V. V. Author Proshchalykin, M. Yu. text Far Eastern Entomologist 2018 2018-08-06 364 10 28 http://dx.doi.org/10.25221/fee.364.3 journal article 10.25221/fee.364.3 2713-2196 7168544 4AB4FCC6-527A-46D7-8A1B-7EA8B5B100A3 Megachile farinosa Smith, 1853 Megachile derasa : Shumakova et al ., 1982: 166 ( Altai Terr.). SPECIMENS EXAMINED. Russia . Altai Terr .: Bezrukavka , 23.VIII 1952 , 1 ♀ [ISEA] . DISTRIBUTION IN WEST SIBERIA.?Al. REMARK. There are two specimens of Megachile derasa Gerstaecker, 1869 (currently a junior synonym of M. farinosa ) listed without its sex in Shumakova et al . (1982). Only one of them (a female) collected near Bezrukavka (Altai Terr.) was found in the ISEA collection. We examined this specimen and agreed with the previous determination. The documented range of this species is Egypt , Greece , Cyprus , Turkey , Iraq and Iran (Asher & Pickering, 2018). Thus, the observation of this species so far to the east is a very surprising. Because the data in Shumakova et al . (1982) raise a lot of questions, M. derasa is not included in a recent list of Russian Aculeata (Antropov et al ., 2017). However, there are no reasons to exclude this species from the fauna of West Siberia, so the record is treated as needing verification.