486 Mr. W. C. Hewitson’s Descriptions 
Genus Hesprrrta, Swainson. 
I have adopted the genus Hesperia as characterized by Swain- 
son. Some of the species now described are put by Professor 
Westwood into his genus Goniloba. I have so often expressed 
my opinion as to the worthiessness of descriptions only of nearly- 
allied species of Lepidoptera, that I wish to state here, that I 
only consider these descriptions as temporary, to secure to myself 
the pleasure of figuring them one day ere long as my own spe- 
cies. I have selected for this purpose those only which are most 
conspicuously characteristic and easily distinguished from each 
other. 
1. Hesperia Aigita. 
Alis fuscis; anticis maculis quatuor-vitreis in triangulum dis- 
positis ; posticis infra maculis quatuor argenteis. 
Upperside dark brown; the base of both wings ochreous, 
Anterior wing much elongated, with four central transparent spots 
in the form of a triangle, the middle spot within the said triangle. 
Posterior wing marked below the apex with an indistinct opaque 
ochreous spot. 
Underside ochreous-brown. Anterior wing with the basal half 
dark brown, the spots as above. Posterior wing with the inner 
margin and anal angle dark brown; four central silver spots, 
one triangular and larger than the others. 
Exp. 2,3, inches. 
Hab. Para. , 
In the Collection of W. C. Hewitson. 
Near to H. Epitus of Cramer, plate 343, but differs from it 
in its much greater length of wing and in the position of the silver 
spots. It is from the Collection of Mr. Bates. 
2. Hesperia Astria. 
Alis fuscis; anticis maculis septem vitreis, quatuor in medio 
dispositis ; posticis infra maculis sex—octo argenteis. 
Upperside dark brown; the base of both wings ochreous. 
Anterior wing with seven pale-yellow transparent spots; four 
central, in the form of a triangle, the middle spot within the said 
triangle, and three together, minute, before the apex. Posterior 
wing with one semi-transparent spot. 
Underside rufous-brown. Anterior wing as above, except that 
there is a yellow spot on the costal margin which joins one of 
the vitreous spots. Posterior wing with six or eight silver 
