LEP1D0P TER A. 
403 
There are two fulvous spots in the discal-cell of the front 
wing (Fig. 475). 
The larvae feed upon nettle ( Urtica ); they are gregarious 
in their early stages. This species occurs in the northern 
portions of the United States and in Canada. 
The Mourning-cloak, Euvanessa antiopa (Eu-va-nes'sa 
an-ti'o-pa).—The wings above are purplish brown, with a 
broad yellow border on the outer margin sprinkled with 
brown, and a submarginal row of blue spots. The upper 
surface is represented by Figure 476, the lower by Plate VI, 
Fig- 5- 
The larvae live on willow, elm, poplar, and Celtis ; they 
are gregarious, and often strip large branches of their 
leaves. The species is usually two-brooded. “This butter- 
FlG. 476 .—Euvanessa antiopa. 
fly is apparently distributed over the entire breadth of the 
Northern Hemisphere below the Arctic Circle as far as the 
thirtieth parallel of latitude ” (Scudder). 
The Compton Tortoise, Eugonia j-alburn (Eu-go'ni-a j-al - 
bum).—This butterfly (Fig. 477) resembles in its general 
appearance those of the genus Polygonia, but it is sharply dis¬ 
tinguished from them by the inner margin of the fore wings 
being nearly straight, by the heavier markings of the fore 
