p. pasargades], from the Alexander Mts., has the whole upperside pale, especially the forewing, which has hardly a trace of green, being also paler yellow beneath, with the black markings reduced.

Larger than European individuals, paler green beneath, darker greenish yellow above; the black markings more prominent and abundant, often confluent.

— paupercula' Ragusa has no silvery white bands and spots; especially in the southern districts, where it is locally the prevalent form, for instance in Algeria.

The butterflies are on the wing from June onwards; their flight is fast and graceful, rushing or swimming, and they usually settle on those branches of trees which hang over the road, or on thistle-heads.

Among other habitats, it favours deciduous and open pine forests, in which there is a large supply of nectar-rich plants from the genera Cirsium , Carduus or Centaurea.