Form constans, male, in the Pyrenees, July 2005

Male, Switzerland, July 2005

Erebia manto constans, Val d'Aran, July 2001, male

Erebia manto constans, Val d'Aran, July 2001, female

Erebia manto constans, Val d'Aran, July 2002

The female of this species is usually readily identified by the yellow on the underside, as in the first two pictures here. In the Pyrenees a form called 'constans' flies, which lacks all markings on the upperside, although the female constans does have a very little pale visible on the wings, and the underside has the characteristic yellow spots, not found in the male.