216 [March 



Observations upon some American PIERINJE. 



BY TRYON REAKIRT. 



{Communicated February \Mh, 1865.) 



1. Leptalis Kollari. Boisd. MSS. 2. Colias Scudderii, n. sp. 



.3. Colias Philodice. Godart. 



The first species has not. I helieve, heen described. 



1. Leptalis Kollari. Boisd. 

 Boisd. MSS. 

 Diurnal Lepidoptera. I. p. 37, No. 24. (1847.) 



Antennae, black ; club ferruginous. 



Head brown ; palpi yellow ; thorax and abdomen black above, whitish 

 beneath ; an orange spot at the insertion of the posterior wings ; legs 

 black. 



Wings, thin and semi-translucent. 



Upper surface, milk white, faintly tinged with green at the base of 

 the wings. Apex of the primaries marked with a black patch, the in- 

 ner border of which, curving slightly from the termination of the first 

 sub-costal veinlet on the costa, to where the third sub-costal is given 

 off", is thence thrown in a quadrant to the middle of the second discoi- 

 dal nervule. anil then proceeds by a slightly sinuate line, nearly to the 

 outer margin between the second and third median veinlets; is recurved 

 inwardly in the second median interspace, and terminates abruptly at 

 the inner angle : it contains an oval white spot near the apex. This 

 irregular curve presents somewhat the appearance of a distorted 3 ; not 

 so well marked as in Thermesia, but preserving more of the relative 

 proportion of the parts of the figure. 



Secondaries have a marginal band of brownish atoms, gradually di- 

 minishing from the outer angle to the middle of the wing; length vary- 

 ing, however, in different specimens and sometimes obsolete. A brown 

 discal line underneath, can be plainly seen above. Expanse 2.19 — 

 2.30 inches. 



Under surface. Primaries, white; ochraceous before the sub-costal 

 vein, and as far on the outer margin at the second discoidal nervule ; 

 a large, oval, opaque white spot, in the middle of the wings. 



Secondaries, ochreous, with two transverse brown bands; one curves 

 from the base to the first division of the sub-costal uervure, and then 

 rises to the costa; the other, slightly sinuate, is on the disc, below the 

 cell, reaching neither the costal nor inner margins. 



Hah. — Bahia, Brazil. (In my collection.) 



Allied to Lej)talis Thcrj)iesia, Godart. 



