Trachusa Panzer, 1864

Trachusa Panzer, 1804: 14-15. Type species: Trachusa serratulae Panzer, 1804 = Apis byssina Panzer, 1798, by designation of Sandhouse 1943: 605.

Diphysis Lepeletier, 1841: 307. Type species: Diphysis pyrenaica Lepeletier, 1841 = Apis byssina Panzer, 1798, monobasic.

Megachileoides Radoszkowski, 1874: 132. Type species: Trachusa serratulae Panzer, 1804 = Apis byssina Panzer, 1798, by designation of Michener 1995: 375.

Megachiloides Saussure, 1890: 35, incorrect spelling of Megachileoides Radoszkowski, 1874; see Michener 1995.

Note.

A medium to large, robust, round-edged species, genus Trachusa appears to be sister to the remainder of the tribe Anthidiini (Litman et al. 2016). Recently, Kasparek (2017, 2019a) reviewed the old-world Trachusa and described new Malaysian species, respectively.