Genus Lycaena 
Butterfly.— Quite small; the male pale blue above, edged with 
dusky; the female dusky, with the inner two thirds shot with 
blue. The maculation of the under side is as represented in the 
plate. Expanse, .80 inch. 
Early Stages. —Unknown. 
Habitat, southern California. 
(16) Lycaena sonorensis, Felder, Plate XXXI, Fig. 21, 6 ; 
Fig. 22, $ (The Sonora Blue). 
Butterfly. — Easily distinguished from all other species of the 
genus by the red spots in the region of the median nervules on 
the upper side. Expanse, .87 inch. 
Early Stages.— Unknown. 
This lovely little insect is found rather abundantly in southern 
California and northern Mexico. 
(17) Lycaena podarce, Felder, Plate XXXII, Fig. 15, 6 ; 
Fig. 16, $ (The Gray Blue). 
Butterfly.— The male is grayish-blue above, with dusky mar¬ 
gins, lighter on the disk of both the fore and hind wings. There 
are a few dark marginal crescents on the hind wings. On the 
under side the wings are very pale, profusely spotted, the spot 
at the end of the cell of the secondaries being large and whitish, 
without a pupil, the rest being black ringed about with white. 
The female is dark brown above, the fore wings having a black 
spot ringed about with yellowish at the end of the cell. Ex¬ 
panse, 1.05 inch. 
Early Stages.— These have never been described. 
The species is thus far known from California, Nevada, and 
Colorado. It is alpine in its habits. 
(18) Lycaena aquilo, Boisduval, Plate XXXII, Fig. 9, $ ; Fig. 
10, 3, under side (The Labrador Blue). 
Butterfly.— The male is dusky bluish-gray on the upper side; 
the female somewhat darker. It is easily distinguished from 
other Species by the dark-brown shades on the under side of the 
secondaries. Expanse, .80 inch. 
Early Stages. —Unknown. 
It is found in Labrador and arctic America. 
(19) Lycaena rustica, Edwards, Plate XXXII, Fig. 17, <3, 
under side (The Rustic Blue). 
Butterfly.—Much like the precedingspecies, but a third larger, 
and brighter blue on the upper side of the wings of the male. On 
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