FAMILY LASI0CAMPADJ2. 239 



Dryocampa pellucida. (Plate xxxvi, fig. 1 -3.) 



a. Pupa : c. Larva (Abbott & S.mitu). 



Male, upper side and forewings : Color of the costal margin and base brown, reddish and 

 purplish ; in the angle of this marginal and basal part there is a white spot : central 

 part clear ; posterior margin reddish or purplish. Posterior wings buif, similar to the 

 antenna?, head, thorax and abdomen. 



Female, buff with a white central spot ; outer margin paler. Beneath buff and uniform. 

 I have a specimen of the male, the color of which is purplish buff without any variation 



of tint, but preserves the pellucid wing with its white central spot. The wing is abraded, 



but still has a close agreement with Mr. Harris's description of the pellucida, which 



certainly does not agree with Abbott & Smith's figure. 



Dryocampa virgixiexsis. ( Plate xl, fig. 5.) 



PnAL.EXA virginiensis ( Drury). P. pellucida (Abbott & Smith). 

 Upper side : Antenna, basal half doubly pectinated. Wings pellucid, brown. One half of 

 the anterior wings darker upon the upper part, in the middle of which there is a 

 single white dot : lower margin of the posterior wings lighter brown than the basal 

 parts. 

 Under side, the legs, sides, thorax and abdomen are dark orange. Wings divided into two 

 unequal parts by a bar : above the bar, the color is reddish yellow ; below, the same 

 as the upper side. 

 I have taken a single pair of this species in Albany county, and it is of rare occurrence 

 in this State, although during the present season (1853) it has been somewhat more nu- 

 merous, so that specimens have been obtained and placed in several collections. 



The larva is described as being naked, striped, rigid, and supplied with acute tubercles : 

 the second ring has two threadlike horns. It subsists on the leaves of forest-trees : the 

 moths were found in a young forest of oaks and hickory. 



The spring of 1853 has been unfavorable to the growth and perfection of this caterpillar : 

 at an early day they were quite numerous, but the subsequent cold weather seems to have 

 killed many in their tents. I have numerous balls consisting of dead dried caterpillars 

 inside of their habitations, which appear to have all perished from excess of cold when 

 about half-grown. 



Clisiocampa sylvatica (Harris). Tent Caterpillar of the Forest. 



Head blue. First ring marked with two yellow spots and four black dots : the next eleven 

 rings are marked upon their tops by a row of white spots, and also two small elevated 



