COLIAS VIII. 
COLIAS SCUDDEKII. 
Colias Scudderii, Reakirt, Proc. Acad. Nat. Sci. Phil. 1865. 
Male. — Expands 1.8 to 2 inches. 
Upper side greenish yellow; marginal borders broad, black, on primaries reg- 
ularly crenated within, or sometimes, very slightly erose, little advanced on costa 
projecting a short, attenuated spur on inner margin, and usually cut to the edge by- 
yellow nervules; discal spot of primaries small, black, sub-ovate, of secondaries 
pale yellow, corresponding in shape to the spot beneath; fringes roseate, yellow at 
inner angle of primaries and outer angle of secondaries. 
Under side dark greenish-yellow, the costa of primaries and whole of second- 
aries densely irrorated with fine black scales; discal spot of primaries small, black, 
subovate, with yellow streak, sometimes sub-triangular, a mere line about a yellow 
spot; of secondaries a silver spot, edged with roseate scales in narrow ferruginous 
ring, sometimes accompanied by a point of ferruginous, or a large spot with silver 
pupil; sometimes also a stout ray of ferruginous projects from the large spot to- 
wards hind margin; on costal edge of secondaries a few ferruginous scales and a 
bright pink spot at base; otherwise immaculate. 
Body above covered with yellow and grey hairs, beneath concolored; collar 
roseate, legs roseate; palpi yellow, grey in front; antennae roseate; club brown 
above, roseate below. 
Female. — Same size. 
Upper side pale yellow, much irrorated with black along costal margin and 
apex and hind margin of primaries, but showing no regular band or spot; discal 
spots as in male; under side still more densely irrorated except along hind margin 
of secondaries, the disk having a greyish-yellow shade. 
Yar. A. — Female. — Color pale greenish-white; the margin of primaries 
much irrorated at tips of nervules, and sometimes, small patches of scales at ori- 
gin of sub-costal nervules; under side white at base and on inner margin of pri- 
maries, yellow at apex and over whole of secondaries, this yellow space always 
densely irrorated. In both sexes there is much variation in size of dorsal spots on 
under side. 
