Dalla Torre, 1893: 108; Emery, 1921c: 75; Bolton, 1995b: 302.
André, 1883b: 379 (Europe & Algeria species); Emery, 1916a: 146 (Italy species); Emery, 1921c: 75 (diagnosis); Bernard, 1967a: 155 (diagnosis); Kugler, 1979b: 258 (sting structure); Bolton, 1994: 106 (synoptic classification); Bolton, 1995a: 1051 (census); Salata & Borowiec, 2015b: 5 (diagnosis, all species revision, key); Cantone, 2017: 224 (brief male diagnosis).
Extant: 12 valid species (4 synonyms, 3 obsolete combinations), 0 valid subspecies (7 synonyms, 5 obsolete combinations)