BUTTERFLIES OF PARAGUAY, AND LA PLATA. 195 
strictly limited to the higher latitudes; not a single example of 
either having been sent me from Paraguay. Burmeister (op. cit., 
Atl. pl. 3) has well figured both sexes, and the reverse sides, of 
both species; and, on an enlarged scale, the curious genital 
organs. He describes the larva of the latter as feeding on 
Aristolochia fimbriata: the larva of Corethrus is still unknown. 
PIERID®. 
Leptalis Perrensii, mihi. A single example received from 
Corrientes, with no note. It must have been taken in Sept., and 
not met with since; nor has it occurred in Paraguay. The 
specimen agrees very accurately with the figure, No. 3, of 
Swainson’s Licinia Amphione (Zool. Ilustr. 1. pl. 91); which he 
considers the female. But it differs so importantly from Pap. 
Amphione of Cramer (ili. pl. 232, 5, ¥F), that the two cannot be 
considered the same species. LL. Perrensii lacks all trace of the 
orange mark which precedes the yellow band at the tip of the 
discoidal cell in the fore wings; and the costal bar of orange, 
broad and reaching the yellow band in A., is short and very 
narrow in P. In the hind wings there is but a single longitudinal 
band, which is interiorly lemon-yellow, exteriorly rich orange ; 
and there is not a trace of the great palmate yellow band of A. 
Beneath, the colours are arranged as above, but are paler; the 
black becoming a pale fuscous, especially on the hind wings, in 
which it greatly suffuses the yellow and orange. Under these 
circumstances, considering the two forms distinct, and seeing that 
the earlier name must be retained for Cramer’s species, which 
seems to be the northern form, I assign to Swainson’s, the name 
of my contributors in Corrientes. Dr. Burmeister makes no 
mention of it in ‘‘Lep. de la Rep. Arg.” 
L. Thermesia, Godt. Paraguay. Nov. to Feb. Banks of 
brooks: scarce. 
Pieris Monuste, Linn. This wide-spread White I receive from 
Corrientes and from Asuncion: taken from Sept. to March, 
flitting at edges of woods, but reported “‘very scarce.” 
P. Automate, Burm. From Corrientes only: scarce. Settles 
on wet spots, in paths through woods. 
P. Menacte, Boisd. Paraguay. Common near woods. 
P. Autodice, Hiibn. Corrientes only: common; always in the 
open. March and April, 
