1890. J 
69 
[Holland. 
an irregular band of white, which, beginning on the inner third of 
the costa, runs diagonally toward the outer angle as far as the sec- 
ond submedian nervule, and then returns and terminates upon the 
inner margin a little before the base. This white band has its 
outer margin scalloped in such a manner as to suggest the “ dog’s 
face,” which is seen in some species of Colias, e. g ., C. Eurydice, 
and in some of the species of Terias. The posterior wings are 
rounded and the fringes are very narrow and white. The under 
side is lavender gray. The inner half of the anterior wings below 
the cell is broadly fuliginous, fading outwardly into the ground 
color, save near the inner margin, the outer third of which is white. 
The wings are marked by a number of pale brown spots, surrounded 
by narrow, whitish lines. Of these there are three in the cell of 
the primaries, that nearest the base linear, subtending the cell, the 
next circular, and the third at the end of the cell having the form 
of an hour-glass, and black at its lower extremity, where it merges 
into the broad, black basal shade. Above, and a little before this 
spot, begins a series of equidistant, circular spots, followed by a 
submarginal fascia of four spots, fusing into each other, and di- 
minishing in size from the costa. There is a marginal row of mi- 
nute black spots, those near the external angle being geminate. 
The posterior wings are ornamented by four basal spots, a linear 
spot crossing the middle of the cell ; a median fascia consisting of 
two small spots just under the costal nervule, and a band curved 
regularly on the inside and outwardly very irregularly, and by a sub- 
marginal fascia of broad spots, of which the two uppermost are 
separate, the one nearest the costa being unciform and the rest 
subhastate. There is a marginal line of small black spots as on 
the primaries. The antennae and palpi are fuscous, legs and ab- 
domen concolorous. 
9 . Differs from the male on the upper surface, in having the 
fore-wings blacker, and the white band interrupted in the middle be- 
low the third median nervule. The posterior wings are not rounded 
as in the male, but acutely produced, and the spots on the under 
surface are darker and more indistinct. 
In one specimen of the female the white band of the primaries 
is almost completely suffused with the ground color. It is evidently 
a melanic aberration. Expanse of wings, $ 42-48 mm. ; 9 37-45 
mm. Described from three £ $ and three 9 9 in Coll. Holland. 
I was at first inclined to regard this insect as an extreme variety 
