Andrena (Tylandrena) wilmattae Cockerell 1906

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 : 32-33

Andrena (Tylandrena) wilmattae Cockerell 1906

= Andrena (Bythandrena) acra Mitchell, 1960: 111 (Michigan holotype; Fig 7C ).

Holotype. ♂ USA: Michigan: Kalamazoo Co.: Gull Lake Biol. Sta. ( KBS), 9 Jun. 1956, on Crataegus, R.L. Fischer ( NMNH: 75167 ). Synonymy by LaBerge & Bouseman (1970).

County records: Branch, Kalamazoo, Lake, Washtenaw.

Notes. LaBerge & Bouseman (1970) state that this large spring-flying bee is rare in collections but the number of available Michigan records and recent collection of a long series from Illinois ( Griffin et al. 2017) suggest that it can be locally numerous.

Material examined. Branch Co.: (no locality) 1 Jun. 1941, R.R. Dreisbach (1 ♂ MSUC) ; Bronson , 14 Jun. 1959, R.L. Fischer (1 ♀ MSUC) ; Kalamazoo Co.: Gull Lake Biol. Sta. (KBS), 9 Jun. 1956 (3 ♂ paratypes (R.W. Hodges) , 1 ♀ MSUC (R.L. Fischer)); Lake Co.: (no locality) 17 Apr. 1955, R.R. Dreisbach (1 ♂ MSUC) .

Figures

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