This history item belongs to Formica rufa subsp. difficilis Emery, 1893
Its current taxon owner(s) is Formica difficilis
Senior synonym of Formica habrogyna: Cole, 1943a: 389; Creighton, 1950a: 500; Smith, 1951c: 862; Smith, 1979: 1462; Bolton, 1995b: 194; Coovert, 2005: 152.
Senior synonym of {prott 163244}: {ref 123696}: 389; {ref 123910}: 500; {ref 128824}: 862; {ref 128659}: 1462; {ref 122860}: 194; {ref 143326}: 152.
| Formica difficilis | Species | Valid |
| Formica rufa difficilis | Subspecies |
Obsolete combination
an obsolete combination of Formica difficilis Emery, 1893
|
| #254806 | Wheeler & Wheeler, 1953c: 164 (l.) |
| #254807 | Status as species: Wheeler, 1904f: 305; Wheeler, 1904i: 348; Wheeler, 1905j: 399; Wheeler, 1906g: 16; Wheeler, 1910a: 570; Wheeler, 1913d: 116; Wheeler, 1913i: 477 (redescription); Emery, 1925d: 256; Wesson & Wesson, 1940: 101; Cole, 1943a: 389; Buren, 1944a: 306; Creighton, 1950a: 500; Smith, 1951c: 862; Smith, 1958c: 155; Carter, 1962a: 8 (in list); Kutter, 1968c: 207; Smith, 1979: 1462; Bolton, 1995b: 194; Coovert, 2005: 152; Ellison et al., 2012: 151. |
| #254808 | Senior synonym of Formica difficilis consocians: Cole, 1943a: 389; Creighton, 1950a: 500; Smith, 1951c: 862; Kutter, 1968c: 207; Smith, 1979: 1462; Bolton, 1995b: 194; Coovert, 2005: 152. |
| #288083 (selected) | Senior synonym of Formica habrogyna: Cole, 1943a: 389; Creighton, 1950a: 500; Smith, 1951c: 862; Smith, 1979: 1462; Bolton, 1995b: 194; Coovert, 2005: 152. |