Stelis (Stelis) subemarginata Cresson 1878

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 : 102

Stelis (Stelis) subemarginata Cresson 1878 ( subemarginata group) (New state record)

( Fig. 17B )

County records: Keweenaw.

Notes. A single specimen record confirmed by S. Droege and examination of photographs. Fye (1965) recorded this species from Black Sturgeon Lake, Ontario; approximately 125 km north of Isle Royale as a cleptoparasite of Hoplitis spoliata (see also Sheffield et al. 2008). Graenicher (1935) recorded it from a nest of Osmia simillima Smith from Milwaukee, Wisconsin on the shore of Lake Michigan, but his identification might apply to Stelis labiata ( Medler & Lussenhop 1968) .

Recorded as a cleptoparasite of H. spoliata and O. simillima .

Material examined (photograph). Keweenaw Co.: Isle Royale National Park, 48.1252 -88.5111, 14 Jul. 2013, S. Wilson (1 ♀ PWRC).

Figures

FIGURE 17. Anthidiine bees from Michigan (not to scale). A) Anthidium (Anthidium) tenuiflorae Cockerell female, metasomal terga. B) Stelis (Stelis) subemarginata Cresson female from Michigan, lateral habitus. Courtesy of Sam Droege, Patuxent Wildlife Research Center.