Dorsal surface of metasoma of female A Plastandrena Hedicke, Andrena crataegi Robertson, and B Scrapteropsis Viereck, A. kalmiae Atwood. Both subgenera differ from Trachandrena Robertson in having the apical impressed area of T2 narrower than the basal area.

 
 
  Part of: Sheffield CS (2020) A new species of Andrena (Trachandrena) from the Southwestern United States (Hymenoptera, Andrenidae). Journal of Hymenoptera Research 77: 87-103. https://doi.org/10.3897/jhr.77.53704