Genus Hesperia 



Early Stages. — These await description. 



This species, which originally was believed to be confined to 

 Scandinavia and Lapland in Europe, and to eastern Labrador in 

 this country, is now known to have a wide range in North 

 America, extending from Labrador to the Carolinas on the Appa- 

 lachian ranges, and occurring on the Rocky Mountains from Brit- 

 ish Columbia to southern Colorado, 



(4) Hesperia caespitalis, Boisduval, Plate XLVII, Fig. 14, 

 ? (The Two-banded Skipper). 



Butterfly. — On the upper side strongly resembling the pre- 

 ceding species, but the inner row of white spots on the hind 

 wings is more complete. On the under side the fore wings are 

 black, crossed by a double row of white spots, as on the upper 

 side, these spots standing out conspicuously on the dark ground. 

 The hind wings on the under side are more or less ferruginous, 

 with the white spots more or less conspicuous. The fringes are 

 checkered white and gray. Expanse, i. 00 inch. 



Early Stages. — But little is known concerning these. 



The species occurs in California, Oregon, and Nevada. 



(5) Hesperia xanthus, Edwards, Plate XLVII, Fig. 15, 5 

 (The Xanthus Skipper). 



Butterfly. — Resembling the preceding species, but easily dis- 

 tinguished by the larger size of all the spots on the upper side 

 of the wing and the paler under side, the secondaries being 

 marked somewhat as in H. montivaga. Expanse, i.ck) inch. 



Early Stages. — Hitherto undescribed. 



The species has thus f^ir been received only from southern Colo- 

 rado, but undoubtedly will be found elsewhere in that portion of 

 the land. 



(6) Hesperia scriptura, Boisduval, Plate XLVII, Fig. 12, $ 

 (The Small Checkered Skipper). 



Butterfly. — Quite small. The hind wings on the upper side 

 are almost entirely dark gray, the only white mark being a spot 

 or two at the end of the cell. The fore wings are marked on this 

 side as in the two foregoing species. On the under side the 

 fore wings are blackish toward the base, with the costa, the 

 apex, and the outer margin narrowly whitish. The hind wings 

 below are pale, with an incomplete median band of white spots 

 and broad white fringes, which are not checkered with darker 

 color as in the preceding species. Expanse, .85 inch. 



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