The
wingspan is 28–34 mm. Forewing olive green, with silvery-white blotches: these are an oblique band near the base, a large blotch below the cell, a submarginal band interrupted above the middle, and a marginal narrow band; orbicular and reniform round and silvery white, the lower half of former and middle of latter obliterated by a darker green streak through cell; fringe white, with grey-green base; hindwing white, becoming greenish fuscous along the termen. ab.
subcaerulea Stgr. [subspecies
C. a. subcaerulea Staudinger, 1901] (26 a), from western Siberia and western Turkestan, is paler, more bluish green. Larva dull green, with a narrow red-brown or pinkish streak on each segment; dorsal and subdorsal lines yellowish, interrupted by the streaks so as to form spots; spiracular lines yellow; spiracles yellow with black rings; head reddish. ==Biology==