FIGURE 12 in The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history

FIGURE 12. Michigan holotype material at the National Museum of Natural History, Smithisonian Institution (not to scale). A) Triepeolus michiganensis Mitchell, dorsal habitus. B) Nomada (Xanthidium) autumnalis Mitchell, dorsal habitus. C) Nomada dreisbachi Mitchell, dorsal habiuts. D). Nomada sobrina Mitchell, dorsal habitus. 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/).