Genus Lycsena 
(/) Southern form piasus, Plate XXXI, Fig. io, $. 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) Lycsena amyntula, Boisduval, Plate XXXII, Fig. 7, 8 ; 
Fig. 8, $ (The Western Tailed Blue). 
Butte?fly.— 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 fig¬ 
ures in the plate give a very good representation of the upper 
side of the wings of this species. 
Early Stages.—Rut 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. 
(31) Lycsena comyntas, Godart, Plate XXXI, 
Fig. 29, 8 ; Fig. 30, $ ; Plate XXXII, Fig. 12, 8 , 
under side; Plate V, Figs. 42, 47, 48, chrysalis 
(The Eastern Tailed Blue). 
Butterfly.— The blue of the upper side of the 
male in the plate is too dark; but the female and 
the under side of the wings are accurately deline¬ 
ated. The species is generally tailed, but speci¬ 
mens without tails occur. Expanse, 1.00-1.10 inch. 
Early Stages.— These are well known and have 
been fully described. The caterpillar feeds on legu¬ 
minous plants. 
This delicate little species ranges from the val¬ 
ley of the Saskatchewan to Costa Rica, and from the Atlantic to 
the foot-hills of the Western Cordilleras. It is common in the 
Middle and Western States, flitting about roadsides and weedy 
forest paths. 
(32) Lycsena isola, Reakirt, Plate XXX, Fig. 33, $, under 
side; Fig. 38, $ (Reakirf s Blue). 
268 
Fig. 137.— 
Neuration of 
Lyccena comyn¬ 
tas ,, enlarged. 
Typical of the 
subgenus Ev¬ 
er es, Hiibner. 
