Hesperapis
Hesperapis is a genus of bees in the family Melittidae. There are at least 30 described species in Hesperapis. The genus is very uncommon. Its abdomen is flattened and its integument or "skin" is soft compared to other groups of bees.
Behavior
One species, Hesperapis rhodocerata, was recorded in one area in 2010 and 2015, appearing in those years but not the years in between. This suggests that their diapause may be prolonged over multiple years.Species
These 37 species belong to the genus Hesperapis:Hesperapis aliciae i c gHesperapis arenicola Crawford, 1917 i c gHesperapis arida Michener, 1936 i c gHesperapis braunsiana i c gHesperapis carinata Stevens, 1919 i c gHesperapis danforthi i c gHesperapis elegantula Cockerell, 1898 i c gHesperapis eumarpha i c gHesperapis flavicara i c gHesperapis flavitarsis i c gHesperapis fuchsi i c gHesperapis fulvipes Crawford, 1917 i c gHesperapis gessorum i c gHesperapis hantamensis i c gHesperapis ilicifoliae i c gHesperapis larreae Cockerell, 1907 i c gHesperapis laticeps Crawford, 1917 i c gHesperapis leucura Cockerell, 1916 i c gHesperapis macrocephala Cockerell, 1924 i c gHesperapis micheneri i c gHesperapis nanula i c gHesperapis nigerrima i c gHesperapis nitidula Cockerell, 1916 i c gHesperapis oliviae i c gHesperapis oraria Snelling & Stage, 1997 i c g bHesperapis parva Michener, 1937 i c gHesperapis pellucida Cockerell, 1925 i c gHesperapis regularis i c g bHesperapis rhodocerata i c gHesperapis rhodostoma i c gHesperapis richtersveldensis i c gHesperapis rodecki Cockerell, 1934 i c gHesperapis rufipes i c g bHesperapis rufiventris i c gHesperapis semirudis Cockerell, 1910 i c gHesperapis trochanterata Snelling, 1987 i c gHesperapis wilmattae Cockerell, 1933 i c gData sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net