male above entirely shaded with soot-colour, except the posterior portion of the disc of the hindwing; female reddish yellow with a broad black apex and distal margin to both wings.

In South France, Spain and Portugal as well as in Italy, in stony places, not rare, in June and July.

[ now the subspecies C. d. austauti Oberthür, 1881 ] has ochre-yellow smears on the forewing above, the white band on the underside of the hindwing is much more prominent; from western Algeria.

— andalusica Ribbe has likewise the ocelli on the hindwing beneath strongly reduced, whereas the upperside, especially of the females, is still bright clay-colour; from South Spain.

— Nothing is known of the larva of dorus except that it is said (Ruhl) to feed on bent-grass (Agrostis).The butterfly is on the wing from June to August.