COLIAS I. 
From Colorado. Mr. James Ridings, who collected in that region in 1864, 
informs me that he took this species at Empire City, high up in the mounta ins 
near the Snowy Range, in the month of August ; that it was moderately abundant 
but very wild and difficult to capture on account of the unevenness of the ground. 
o- 
COLIAS HELENA. 5—7. 
Colias Helena (Hel'-e-na) % 9 . Edwards, Proc. Ent. Soc. Phila. ii, p. 80. 1863.. 
Male. Expands 1.5 inch. 
Upper side greenish-yellow, deepest colored on secondaries, sprinkled with 
black on the costa of primaries and at the base of the wings ; border of primaries 
broad, black, much advanced on the costa, not crossed by yellow nervures ; that of 
secondaries of medium width, short, terminating midway on the margin ; both bor- 
ders erose on inner edge ; primaries have a slender, black, discal mark ; second- 
aries only an indistinct pale point; fringes rose-red. 
Under side : primaries in color much as above, with a similar discal mark ; 
secondaries dark greenish-yellow, covered with fine black scales ; discal spot small, 
round, silver- white, with no border ; at the base a few rosy scales ; body black 
above, yellow beneath ; collar rosy ; palpi yellow with rosy hairs at extremity ; legs 
and antennae rosy ; club brown. 
Female. Expands 1.7 inch. 
Upper side soiled white with a slight green tinge ; primaries have a brownish- 
black border, very broad at the apex, terminating in a point at the inner angle, the 
inner edge on the inferior nervules emarginated ; secondaries have a narrow border 
at outer angle only ; discal spots as in the male ; fringes rose-red. 
Under side : primaries same white as above, the apex and costal margin washed 
with yellow ; secondaries as in the male. 
From Mackenzie’s River, taken by Mrs. Ross, in 1862. 
