FIGURE 7 in The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history

FIGURE 7. Michigan holotype material at the National Museum of Natural History, Smithisonian Institution. A) Andrena (Trachandrena) compacta Mitchell, dorsal habitus (= A. ceanothi Viereck). B) Andrena (Trachandrena) arenakensis Mitchell, lateral habitus (= A. hippotes Robertson). C) Andrena (Bythandrena) acra Mitchell, lateral habitus (= A. wilmattae (Cockerell)). D) Bombus ternarius var. expallidus Cockerell, lateral habitus (subspecies not recognized). Photographs provided with the permission of the National Museum of Natural History, Smithsonian Institution, 10th and Constitution Ave. N.W., Washington, DC 20560-0193. (http://www.nmnh.si.edu/).