Nomada dreisbachi Mitchell 1962

Gibbs, Jason, Ascher, John S., Rightmyer, Molly G. & Isaacs, Rufus, 2017, The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history, Zootaxa 4352 (1), pp. 1-160 : 59

Nomada dreisbachi Mitchell 1962 (ruficornis group)

(Michigan holotype; Fig. 12C )

Nomada dreisbachi Mitchell, 1962: 414 .

Holotype. ♂ USA: Michigan: Newaygo Co.: 13 May 1956, R. & K. Dreisbach ( NMNH: 75218).

County records: Kent, Midland, Newaygo, Osceola.

Notes. This uncommon nominal species described from the male only is very similar to the common N. cressonii , differing in the more shallow medial impression of the mesoscutellum ( Mitchell 1962). Nomada dreisbachi may be a junior synonym of N. cressonii .

Material examined. Midland Co.: (no locality) 4 May 1945, R.R. Dreisbach (1 ♂ paratype MSUC) ; Osceola Co. : (no locality) 3 May 1952, R.R. Dreisbach (1 ♂ paratype MSUC).

Figures

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, 10 th and Constitution Ave. N. W., Washington, DC 20560 - 0193. (http: // www. nmnh. si. edu /).