Status as species: Cresson, 1887: 259; Dalla Torre, 1893: 5; Emery, 1895d: 261; Emery, 1900e: 179; Wheeler, 1908h: 417 (redescription); Emery, 1910b: 27; Wheeler, 1910a: 562; Smith, 1938b: 160; Smith, 1942c: 550 (redescription); Buren, 1944a: 280; Creighton, 1950a: 73; Smith, 1951c: 781; Cole, 1953d: 84; Borgmeier, 1955: 494 (redescription); Smith, 1958c: 109; Smith, 1967a: 345; Watkins, 1971: 94 (in key); Kempf, 1972b: 157; Watkins, 1972: 358; Hunt & Snelling, 1975: 21; Watkins, 1976: 15 (in key); Smith, 1979: 1331; Snelling & George, 1979: 31; Petralia & Vinson, 1980: 378; Dlussky, 1981b: 48; Watkins, 1982: 212 (in key); Watkins, 1985: 482 (in key); Wheeler & Wheeler, 1986g: 19 (in key); DuBois & LaBerge, 1988: 136; MacKay et al., 1988: 87; Bolton, 1995b: 290; Ward, 1999a: 84 (redescription); Mackay & Mackay, 2002: 61; Coovert, 2005: 32; MacGown & Forster, 2005: 67; Ward, 2005: 62; Snelling & Snelling, 2007: 484; Deyrup, 2017: 37.

Status as species: {ref 123936}: 259; {ref 124002}: 5; {ref 124591}: 261; {ref 124638}: 179; {ref 130031}: 417 (redescription); {ref 124696}: 27; {ref 130044}: 562; {ref 128778}: 160; {ref 128789}: 550 (redescription); {ref 123329}: 280; {ref 123910}: 73; {ref 128824}: 781; {ref 123709}: 84; {ref 122904}: 494 (redescription); {ref 128854}: 109; {ref 128863}: 345; {ref 129678}: 94 (in key); {ref 126357}: 157; {ref 129679}: 358; {ref 126032}: 21; {ref 129682}: 15 (in key); {ref 128659}: 1331; {ref 128905}: 31; {ref 127796}: 378; {ref 124147}: 48; {ref 129683}: 212 (in key); {ref 129684}: 482 (in key); {ref 129925}: 19 (in key); {ref 124419}: 136; {ref 127023}: 87; {ref 122860}: 290; {ref 132566}: 84 (redescription); {ref 131795}: 61; {ref 143326}: 32; {ref 131768}: 67; {ref 132562}: 62; {ref 132357}: 484; {ref 143305}: 37.