Lasioglossum scoticum EBMER 1970; Lasioglossum hibernicum EBMER 1970;
This species was formerly referred to in the British and Irish literature either as a form of Lasioglossum smeathmanellum, with the female gaster mostly black and not metallic (Stelfox 1927), or as a species without a name (R C L Perkins 1935). This neglected species was later considered to consist of two allied, but undescribed species, by A W Ebmer. He described them under the names Lasioglossum scoticum (described from Scotland, but clearly known also from England and Wales) and L. hibernicum (described from Ireland) (Ebmer 1970). Later he considered them to be subspecies of L. cupromicans (Pérez 1903) (Ebmer 1976).
L. cupromicans and L. smeathmanellum form a species-pair in Britain with a largely allopatric distribution, the former species totally replacing L. smeathmanellum in Scotland and Ireland, and mainly so at higher altitudes and on moorland in north Wales, northern England, the Midlands and the south-west peninsula (e.g. Dartmoor). Was widely distributed but often rare and local in Ireland: Cork, Waterford, Clare, Tipperary, Wexford, Wicklow, Dublin and Mayo (Stelfox 1927), but there have been widespread recent records.