Genus Thymelicus 
notably darker in coloring. The upper side of the wings is 
shown in the plate. On the under side the wings are dark brick- 
red. The primaries are blackish on the outer half, interrupted 
by the spots of the median series, which on the under side are 
large, distinct, and shade from pale fulvous to white toward the 
inner margin. The secondaries have a round pale spot at the 
end of the cell, and a curved median band of similar spots, cor¬ 
responding in location to those on the upper side. Expanse, $ , 
1.25 inch; $ , 1.35 inch. 
Early Stages .—These are only imperfectly known. The cat¬ 
erpillar feeds on grasses. 
The butterfly, which haunts flowers and may easily be cap¬ 
tured upon them, ranges from New England and Ontario south¬ 
ward to Florida, and westward to Iowa and Kansas. 
(10) Erynnis snowi, Edwards, Plate XLVII, Fig. 29, & ; Fig. 
30, $ (Snow’s Skipper). 
Butterfly .—The upper side of the wings of both sexes is well 
represented in the plate. On the under side the wings are uni¬ 
formly reddish-brown, with the primaries black at the base, and 
the median spots enlarged near the inner margin and whitish, as 
in the preceding species. The light spots of the upper side re¬ 
appear below as pale spots, which are well defined on the dark 
ground-color. Expanse, 1.25-1.40 inch. 
Early Stages. —Unknown. 
The species ranges from southern Colorado to Arizona. 
Genus THYMELICUS, Hiibner 
Butterfly .—The antennae are short, less than half the length of 
the costa; the club is stout and short, somewhat crooked just at 
the end. The third joint of the palpi is conical, almost concealed 
in the thick vestiture of the second joint. The neuration is given 
in the cut. 
Egg .-—The egg is hemispherical, with the surface marked by 
irregular angular cells formed by slightly raised lines. 
Caterpillar .—The caterpillars feed on grasses. They are long 
and slender, thicker behind than before, covered with short hair. 
They are generally dark in color, and not green as are the cater¬ 
pillars in most of the hesperid genera. 
350 
