Meddeland. Soc. Fauna Fl. Fenn. 45, 4: 306 (1920).

Type locality: Germany, Niedersachsen, Oldenburg, Zwischenahn, Ohrwege, Kehnmoor, 1886, H. Sandstede in Zwackh, Lich. Exs. 996 (TUR-V 13875 - lectotype; H-NYL 37662, UPS - isolectotypes). Lectotypification by Ahti (1993: 102).