Megachile ( Megachiloides ) pascoensis Mitchell, 1934

Megachile ( Megachiloides) pascoensis Mitchell, 1934 View in CoL

Megachile ( Xeromegachile) pascoensis Mitchell, 1934: 320 View in CoL .

Megachile ( Derotropis) pascoensis View in CoL ; Mitchell 1944: 142. Hurd 1979: 2062.

Megachile ( Megachiloides) pascoensis View in CoL ; Raw 2002: 16. Kuhlman and Burrows 2017: 13.

Megachile gabrielensis Michell, 1934: 346 View in CoL ; 1936: 159.

Diagnosis. The female of M. pascoensis can be identified by its 3-toothed mandibles ( Fig. 7A View FIGURE 7 ) and pitted, dull T6 with punctures ≤ 1 diameter apart. The females are most similar to M. anograe (see M. anograe above). The male of M. pascoensis can be identified by its clypeal margin, which has a deep U-shaped median emargination (as deep as wide) ( Fig. 10A View FIGURE 10 ) and the white apical setal band on T5.

Notes. This distinctive species is rare outside of California. In Montana, it is known from a historical record ( Mitchell 1934) and two specimens from Missoula County ( Kuhlman & Burrows 2017) ( Fig. 1 View Figure 1 AA). The species was first described in Mitchell (1934) (male = M. pascoensis ; female = M. gabrielensis ) and has not been redescribed or illustrated since. Photographs of the types of both sexes can be found on Big-Bee ( Seltmann et al. 2021).