[a]Fig. 136.]—Neuration of Lycæna pseudargiolus, enlarged. Typical of subgenus Cyaniris, Dalman.
(f) Southern form piasus, Plate XXXI, Fig. 10, ♂. This form, which is uniformly darker blue on the upper side than the others, is found in Arizona.
There are still other forms which have been named and described.
Early Stages.—These have been traced through all stages with minutest care. The egg is delineated in this book on p. 4, Fig. 7. The caterpillar is slug-shaped, and feeds on the tender leaves and petals of a great variety of plants.
The range of the species is immense. It extends from Alaska to Florida, and from Anticosti to Arizona.
(30) Lycæna amyntula, Boisduval, Plate XXXII, Fig. 7, ♂; Fig. 8, ♁ (The Western Tailed Blue).
Butterfly.—Closely resembling L. comyntas, of which it may be only a slightly modified Western form. Until the test of breeding has been applied we cannot be sure of this. The figures in the plate give a very good representation of the upper side of the wings of this species.
Early Stages.—But little has been found out concerning these.
It ranges from the eastern foot-hills of the Rocky Mountains to the Pacific in British America and the northern tier of Western States.