THE CANADIAN ENTOMOLOGIST. 57 



silken threads, it constructs the slight cocoon which is to shelter the chry- 

 salis, and here in a short time the change takes place. From the chrysalis 

 (b, fig. 9), which is of the usual brown color, in a week or two the perfect 

 moth appears, soon to deposit fresh patches of eggs, from which in a few 

 days the second brood of larvae are hatched, which attain maturity and 

 enter the chrysalis state before winter comes, and remain in this quiescent 

 condition until the following spring. 



The moth (fig. 9, c) measures when its wings are expanded from one 

 inch and a half to two inches. The figure represents a female ; the males 

 are somewhat smaller. Both sexes have the wings snowy white with a few 

 black dots which vary much in number in different specimens ; in some 

 there are two on each front wing and three on each hind wing, as in the 

 figure, while in others the spots are almost wanting, and there is every 

 gradation between these extremes. On the under side the spots are more 

 distinct than on the upper, and sometimes the white surface is slightly 

 tinged with yellow. The antennae are white above, dark brown below, the 

 head and thorax white. The abdomen is orange colored, sometimes 

 streaked across with white, and has three rows of black spots, one above 

 and one on each side ; the under side of the abdomen is white, sometimes 

 tinged with orange. 



This species is attacked by several parasites, which destroy immense 

 numbers every year ; were it not for this we should soon be overrun with 

 them. 



.ON THE DESCRIBED N. AM. SPECIES OF THALPOCHARES. 



BY A. R. GROTE, 



Director of the Museum, Buffalo Society Natural Sciences. 



Thalpochares patruelis Grote, Can. Ent., viii., 27. 



The fore wings are 12-veined, no accessory cell, 9, 10 out of 8, costal 

 nervules rather crowded, cell open. Hind wings 8-veined, vein 5 a little 

 weaker than the rest, independent. This little species, of which I have 

 both sexes, is rusty ochrey, the hind wings sub-pellucid, washed with 



