About Macaria wauaria (Linnaeus, 1758)
The forewing length of Macaria wauaria ranges from 14 to 17 mm. All wings have a general ground colour ranging from light grey to purple-grey, and the apex of the forewing is slightly angular. There are four dark brown stains on the forewings; the second stain from the inside has a distinctive V-shaped angle extending from the costa. The hindwings have a slightly darkened marginal band, and male antennae are combed on both sides. Newly laid eggs are elongated oval and green, and later change colour to brown-red. The egg has an irregular polygonal network, with small white warts at the network angles. Young caterpillars have greenish or bluish colouration, and turn purple-brown just before pupation. Caterpillars have small, black, bristled point warts. Their dorsal line is dark with white edges, and their lateral stripes are broad and yellow. The pupa is very slender, reddish brown, and has a short fork at the end of its cremaster. This species occurs from Morocco through northern and central Europe, reaching the Russian Far East, Siberia, Amur, Kamchatka and Central Asia. The northern edge of its distribution reaches Lapland. It is also found in Labrador, Quebec, Ontario and Nova Scotia. In mountainous regions, it occurs up to an elevation of 1700 meters.
