660 [December 



Although this larva has frequently come under my observation, 

 feeding both on the Grape and Ampelopsis, and in different stages of 

 its growth, from previous to its third molting to maturity, I have never 

 met with it of the '• pale green" color of our published descriptions. 

 In some individuals taken by me, the red hue has prevailed to an ex- 

 tent approaching crimson. It is frequently quite late in maturing. 

 On several occasions I have known it to be caught by the October 

 frosts, before it had undergone its last (fourth) molting. I regret that 

 I cannot give the period of disappearance of the caudal horn, or a more 

 particular description of the larva, which is one of the most beautiful 

 of the Sphinges. 



Pupa. 2 in. to 2.25 in. long, .70 in. broad. Chesnut brown. Head- 

 case, prolonged, sub-triangular laterally, slightly corrugated. Wing- 

 cases, smooth, separated by the buried tongue-case, which extends 

 slightly beyond their tips. Tips of antennae-cases in the S ranging 

 with tips of the anterior legs — in the 9 not reaching to their tips. 

 Segments with impressed points, more abundant on their anterior por- 

 tion ; the second segment, with a subdorsal depression above the base 

 of the wing-case ; the third segment, with three prominent ridges — the 

 central one, which proceeds from the base of the posterior wing-case, 

 divided dorsally by an elevated medial line, connecting the two exte- 

 rior ones ; the fourth segment more elevated than the others ; the cen- 

 tral segments projecting inferiorly; the terminal segments regularly 

 tapering. Terminal .spine long, thick, rounded, rugose, attenuated near 

 the tip, minutely bifid, .10 in. long. 4 S , 2 9 . 



The pupation occurs in a ground cell, constructed at a very moderate 

 depth. The pupte appear to be quite delicate, — thi-ee-fourths of their 

 number having failed with me, to mature. I have obtained the Im.ago 

 from a box kept in a warm room near the ceiling, on the 2d of Decem- 

 ber. It is rarely captured by collectors, and very seldom in good con- 

 dition. 



Philampelus Aohemon Drury. 



Larva. Length when at rest, 3 inches. Reddish-brown, with a 

 darker dorsal line, and a sub-dorsal one midway between the dorsum 

 and stigmata, bordered inferiorly with lighter brown ; below the stig- 

 mata, darker brown. The annulations with ocellated spots as in xntil- 

 h'tia. The lateral spots, cream-colored, each composed of three sub- 



