Identification: Head - Postgenal stripe absent
Frons - [description required]
Head profile - black except for a large, round yellow patch below the eye
Face (below antennae) - Mainly black with yellow around the mouth opening which extend as small patches up from the sides of the mouth opening; a broad black central band.
Humeri - black
Ceianu, 1989: swept from Juncus and Carex in fens