Preliminary report of the Cleptoparasitic Bees of the genus Coelioxys (Hymenoptera: Megachilidae) from Bhuta

Coelioxys Latreille is the globally distributed cleptoparasitic bees of the genus Megachile Latreille. This is the least studied group of bees and certainly the first report from Bhutan. This paper reports four Coelioxys species, C. basalis Smith, 1875, C. decipiens Spinola, 1838, C. confusus Smith, 1875 and C. sexmaculatus Cameron, 1897. This is only the preliminary report and more species are expected to occur in Bhutan.