Packard.] •''^ [Feb. 3, 



the second abdominal segment, and is twice as large as the others ; those 

 on the eighth abdominal segment are much larger than the other abdomi- 

 nal tubercles (which are minute), and the spines on this pair are whiter 

 than those on the other tubercles. A brown line washed externally with 

 paler bounds the sides of the back. A lateral row of small tubercles bear- 

 ing spines is situated around the edge, the middle of each tubercle being 

 raised, convex. The spiracles are minute, while, somewhat raised, and 

 situated in a darker round area. Low down between the two rows of 

 tubercles is a row of smooth, kidney-shaped depressed spots. The head is 

 chestnut, the labrum paler. The under side or creeping disk is pale flesh 

 color edged above with a reddish stripe, becoming reddish brown above. 

 The body above is of a rich velvety dark flesli-red brown. Some individ- 

 uals are much darker than others. The under side of the " tail " is tlesh 

 colored, reddish above, and on top of a rich brown. 



In this species the spiracles are plainly seen to be arranged, as in Lima- 

 codes scapha, on the side of the body rather low down, but above the edge 

 of the creeping disk. 



In P. chloris {frnterna Grote) the tail like end of the body is longer and 

 better developed, and more movable and nutant than in the larva of 

 Packardia. It is slowly raised and lowered while the animal is creeping, 

 with the result that it must be deterrent to ichneumon and other insect 

 enemies. The " tail " is quite hirsute, and is flesh-colored below and at 

 the end, but on the upper side is brown like the body. It varies in length. 

 The "hood" or prothoracic segment is in this species larger and freer 

 from the second thoracic segment than usual. 



On one of the larvae was observed an oval cylindrical ichneumon egg. 



Life History of Adoneta spinuloides Herrich-Schaeffer. 



Batches of the eggs of this Cochliopod were also very kindly sent me 

 by Miss Emily L. Morton, from New Windsor ; they hatched July 18 or 19. 

 The eggs are so flat, scale like and transparent, that they must be very 

 difflcult to detect on the leaf of the food plant. Thus the eggs must be 

 to an unusual extent free from attack of other insects or the gaze of birds, 

 etc. 



In Stage IT, when feeding, the upper (never the lower) surfixce. says Mr. 

 Bridgham, is eaten, and all the contents, leaving only the lower skin of 

 the leaf, thus forming little pits on the surface. 



Egg. — Very flat, rounded, oval, with very thin edges ; varying much 

 in size, some being twice as large as others, varying from 0.7 to 1.4 mm. 

 in length, and nearly as broad as long. The cast shell is thin, membrane- 

 like, not preserving its shape after the exit of the larva, and not showing 

 any markings. Though the eggs themselves vary so much, yet the larvae 

 whhin are of nearly the same size. This variation in size is very unusual 

 in insects and may be correlated with some interesting peculiarities of the 

 oviduct. 



