186 Journal New York Entomological Society. [Vol. vl. 



wrinkled, running from first segment to last. Dorsal stripe uninterrupted,, 

 on thoracic segments nearly uniform, then widening in the middle of 

 segments and narrowing in the joints. The lateral stripe follows the 

 same principal, but in a more complete way, being almost uniform on 

 thoracic segments and forming a chain of spindle-shaped spots on the 

 abdomen connected by a narrow line. The spot on the eleventh seg- 

 ment runs in a line to anal plate. From first to last segment a stig- 

 matal row of eleven large, half-moon shaped, cream colored spots, yel- 

 low on the edges and bordered above their full length with cherry red; 

 on the three first segments the spots are more elongated forming almost a 

 band, but they are disconnected ; on last two segments one large spot 

 which ends in a narrow white stripe, edged above with yellow, 

 bordering the anal plate. A pedal line of oblong, irregular cream col- 

 ored spots, one on each segment except on first and twelfth. Spots on 

 second and third segments smaller than the others, the latter extending 

 almost over the whole width of the segment. 



The larvae vary in the deeper or lighter shade of green, the inten- 

 sity of the red color and prominence of the yellow edgings. One of 

 about 75 full grown caterpillars had all, even the dorsal stripe, converted 

 into oval spots. 



From May 30th to June 3d all but a few sickly stragglers had gone 

 into the ground. Some forming their cocoons on the surface, only cov- 

 ered by moss and dry hemlock leaves. 



Cocoon. — Rather soft but durable, made of earth and silk. 



Pupa. — Rather stout anteriorly, head cases slightly rounded, almost 

 blunt ; movable segments tapering much to anal joint, the latter ends in 

 two fine hooks with which the pupa is fastened to the cocoon. Thorax 

 and wing cases brown, the former shagreened, the latter wrinkled, an- 

 tennae cases clearly visible, but not much produced. Abdominal seg- 

 ments more reddish brown, finely punctured, the movable ones only so 

 anteriorly. Length of pupa 15 mm., widest in the middle, 5 mm. 



The imagines do not vary much in size. Almost all expand 34 mm, 

 (about 50 specimens). There is more variation in ground color and 

 the black scales in median space. The former varies from pea-green to 

 bright olive ; also appearing in all shades of cream color. The whole 

 median space is often powdered with black scales, sometimes only 

 partly and in a few specimens the black scales are omitted. The white 

 and black t. a. and t. p. lines are nearly always regular and distinct. 

 The green females seem to be in the majority, but in general the 

 variability in either way is not confined to any sex, nor has the flying 



