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).