Lasius mixtoumbratus

Distribution
This taxon was described from Switzerland.

Nomenclature

 * mixtoumbratus. Lasius umbratus var. mixtoumbratus Forel, 1874: 48 (w.q.) SWITZERLAND. Combination in Donisthorpea: Donisthorpe, 1915d: 233; in Formicina: Emery, 1916b: 242; in Lasius (Chthonolasius): Emery, 1925b: 234. Raised to species: Bondroit, 1918: 30. Subspecies of mixtus: Stitz, 1939: 298; of umbratus: Novak & Sadil, 1941: 103. Junior synonym of mixtus: Pisarski, 1975: 38; of umbratus: Wilson, 1955a: 151; Kutter, 1977c: 14. Unrecognisable taxon, incertae sedis in Lasius: Seifert, 1990: 6.