The line of white bars on the underside is straighter, being somewhat curved outward at the anal angle of the hindwing without forming a W. Male without scent-spot.

— abdominalis Gerh., from the Black Sea countries, is larger and has a grey instead of brown under surface with the white line broader and continuous, the forewing bearing 1-3 dark spots beneath before the hind angle.

— beccarii Verity, from Florence, is a very small, dwarfed, form; almost tailless, the white line of the underside nearly obsolete.

— Larva pale yellowish green or grass-green, with black head, two yellowish subdorsal lines and, further laterad, small pale oblique spots; in May adult on blackthorn, especially small bushes which grow on sunny slopes: the larva can be obtained by beating.

The butterflies have very definite haunts which are widely dispersed throughout the distribution area and often of very limited extent ; they occur particularly on rocky slopes, with blackthorn hedges and exposed to the full force of the sun, in June, showing a preference for resting on Umbellifers.