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AZURE BLUE BUTTERFLY. 
Polyommatus Argiotus. 
PLATE XXXI. Figs. 1. and 2. 
Tap. Argiolus, Linn Lewin , pi. 36. figs. 4, 5, 6 Donovan. 
xiv. pi. 481. — The Azure Blue Butterfly, Harris. 
Expansion of the wings about 13 or 16 lines; 
the surface of the male delicate light blue, slightly 
tinged with lilac, the wings narrowly edged be- 
hind with black ; the female lighter blue above, 
with a broad dusky border in the primary wings, 
and a transverse series of spots of the same colour 
near the hinder edge of the secondary pair. Be- 
neath, the colour is grey, faintly tinged with blue, 
the upper wings with a slender curved spot or streak 
in the middle, and a posterior band of five or six 
narrow black streaks, that next the anterior margin 
placed by itself : the hinder wings marked in a simi- 
lar manner, with the addition of several scattered 
spots towards the base. The fringe on the superior 
wings is white, interrupted with black when seen 
from above, but on the hinder pair, and on the un- 
der side of all, it is nearly white. The number of 
spots varies greatly in different individuals ; at times 
