Male. Typical male with the diagonal black streak on the front wing (sex brand). Plus the pale spots distally on the front wing is a good indication of this species. On Horse-tidsel (Cirsium vulgare).
One of the most common butterflies in Pinseskoven.
Female. Pinseskoven. Female by the lack of a prominent black streak on the forewing and by the all dark tips to the antennas, the clubs - not orangy as the male has them.