LYC.ENA. 
97 
two such rows ; in addition to these there are two or three spots in 
the discoidal cell and one near the inner margin. The hind wings 
are dark brown, with a hind-marginal band of copper ; above this 
there are sometimes faint blue spots. All the wings in the male, 
but not in the female, are shot with brilliant bluish violet on their 
upper surface. Under side : — Fore wings bright orange, spotted 
with black. Hind wings brownish grey, spotted with black ; hind 
margins with an orange border, internal to which are two rows of 
black spots, and between these a row of white ones. Pi. XXI., 5. 
Times of Appeaeance.- — ^May to August. 
Habitat. — Northern and Central Europe (but not the North- 
West of Europe). It is found in moist meadows. In Switzerland 
it occurs in the mountains. It also inhabits Armenia, Siberia, 
and the Amur. 
Larva. — Yellowish green, with a darker green dorsal line, and 
lateral stripes. The head is yellow. It feeds on various species 
of Piumex, and on Polygonum historta. PI. XXVIII., 4. 
Genus 5. — LYC^^NA, Fabr. 111. Mag. vi. p. 285 (1807). 
PoLYOMMATUs, Latr. Hist. Nat. Crust, et Ins. xiv. 116. 
CupiDO, Sect. B, Schrank, Faun. Boica. 
Argus, Boisd. Lee. Lep. Amer. Sept. 118 (1833). 
Small Butterflies, with the antennas slender, and with their 
clubs elongated ; the wings seldom or never emarginate, the pos- 
terior pair rounded, and in a few species furnished with a slender 
tail-like prolongation from the hind margin. In most of the 
species the upper surface of the wings is blue in the male, and 
more or less brown in the female ; yet we occasionally meet with 
species that are blue in both sexes, and with others that have both 
males and females of a brown colour. 
The under sides have always a ground colour of grey, some- 
times inclining to blue and sometimes to brown. In one or two 
species they are striped with darker colour, but in most cases they 
are spotted with black. The pattern of the under side when 
complete may be said to exhibit the following characters : — 1. On 
each wing is a black discoidal spot, generally elongated. 2. A 
0 
