Rediscovery of the Rare Bee Epeoloides pilosulus in Manitoba (Hymenoptera: Apidae)

Epeoloides pilosulus (Cresson) (Hymenoptera: Apidae) is an exceptionally rare bee of conservation concern. Epeoloides are cleptoparasites of the oil-collecting bees Macropis (Hymenoptera: Melittidae), which specialize on oil-producing species in the genus Lysimachia (Ericales: Primulaceae). We report on the first records of E. pilosulus in Manitoba in 95-years, and only the fifth through eighth specimens for Canada since 1960. Manitoban records of Macropis are also provided.