Genus Hesperia 
Caterpillar. —The caterpillar is much like those which have 
been previously described, but is relatively much smaller. 
Chrysalis. —The chrysalis has a somewhat blunt and not very 
distinctly developed cremaster. 
(1) Hesperia domicella, Erichson, Plate XLVII, Fig. 19, $ 
(Erichson’s Skipper). 
Butterfly.— Allied to the following species, from which it is 
easily discriminated by the broad, solid white bands on both the 
fore and the hind wings. Expanse, 1.25 inch, 
Early Stages. —Unknown. 
H. domicella is found in Arizona, Mexico ; 
and southward. 
(2) Hesperia montivaga, Reakirt, Plat* 
XLVII, Fig. 18, 6 ; Plate VI, Fig. 35, chrys¬ 
alis (The Checkered Skipper). 
Butterfly.- The upper side is correctly gg 
delineated in the plate. The under side of tenna, magnified 3 diam- 
the fore wings is much paler than the upper eters ' 
side, but with all the spots and markings of that side reproduced. 
The hind wings are creamy-white, crossed by median, postme¬ 
dian, and marginal irregular bands of ochreous, somewhat annular 
spots. There is a triangular black spot at the anal angle of the 
secondaries. Expanse, 1.15 inch. 
Early Stages.—We know little of these. The caterpillar 
probably feeds on malvaceous plants, as do most of the species 
of the genus. 
The insect ranges from the Middle States to Arizona, and 
westward to the Rocky Mountains. 
(3) Hesperia centaureae, Rambur, Plate XLVII, Fig. 13, $ 
(The Grizzled Skipper). 
Butterfly. —The upper side may easily be recognized by the 
help of the figure in the plate. On the under side the wings are 
darker than in the preceding species; the spots of the primaries 
reappear on this side, the submarginal curved row of spots coa¬ 
lescing to form a narrow white band, the white spot at the end 
of the cell flowing around the dark spot, which it only partly in¬ 
closes on the upper side, and forming an eye-like spot. The 
hind wings are brown, scaled with green, and crossed by basal, 
median, and marginal bands of quadrate spots. The fringes are 
whitish, checkered with gray. Expanse, 1.15 inch. 
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