Primary type information:
Primary type material: syntype workers (number not stated). Primary type localities: “Habitat in Europae”, and, “in America septentrionali”. Primary type depositories: LSLC, ZMLS.
Type notes:
1) Linnaeus, 1761: 426, gives the type locality as Sweden. 2) Day & Fitton, 1978: 196, report 3 specimens in LSLC.