140 GRAPE-VINE. LEAVES — GARTERED PLUME. LARVA. 



The larva when fiill grown mea'?ures about half an inch in length. It is al- 

 most cylindrical, sixteen- footed, of a very pale green color, divided into fourteen 

 segments by rather deep wide transverse constrictions. It has two rows of elevated 

 white spots along the back and one along each side, each segment haTing one ppot 

 in each row, or four spots in all, and between the spots is a smaller white elevated 

 dot, and another similar dot below the lower spots. From each of these elevated 

 spots and dots white bristles of dififertnt lengths stand out in all directions. 



Two of these worms which I inclosed ia a breeding c^ge had 

 changed to pupae on the 25th of June, one suspending itself from 

 the gauze top of tlie cage, and hanging obliquely downwards, the 

 other attaching itSL'lf to the g'ass side of the cage, having first 

 spun several short threads here and there upon the surface of the 

 gla<s as if to ascertain whether they would adhere to it, and then 

 making a small patch of numerous threads, into which (o insert 

 the minute huoks at its tail, whereby to suspend itself. The 

 relics of its larva skin^ forming a little lump of fine hairs, remained 

 adhering to the glass, downwards and to one side of the spot 

 where the pupa was attached, being as far off as the length of the 

 Insect enabled it to reach. After releasing itself from this skin 

 the pupa had turned to the opposite side, and thus lenifdned 

 hanging stifliy downwards and outwards from the surface of the 

 glass, resembling the dt-ad fragment of a little scraggy twig. It 

 is of a slender conical f .rm, obliquely truncated at the hea(i, and 

 has two lung compressed horns placed side by side and jutting 

 upwards from the middle of its back. Numerous smaller pro- 

 jecting points and ridges diversify its-surface, a particulnr 'de- 

 scripticm of whidi would occupy a page or two. I therefoie limit 

 myself to a recital merely of some of its most prominent marks. 



The chrysalis is about 0.35 long and 08 in diameter. About the mouth and 

 head are divers raised line's and 'projecting angular p(,ints. The obliquely trnncated 

 face is convex or gibbous in the middle, and here commence two elevated carirja; or 

 sharp edged ridges which extend backwards nearly parallel with each other to the 

 middle of the back, where they shoot upwards into the compressed horns alieady 

 spoken of. Their length is equal to half the diameter of ihe body Viewed laterally 

 their outline Is egg-shaped, with the edg. a irregularly toothtd and the apex drawn 

 out into a long sharp thorn-like point. Forwaid of these horns the raised lines are 

 more elevated in the middle of each segment, where ihcy present two snjall to-th- 

 lik-i spines, the anferior one larger, and also two short divergii g white bristles which 

 are club shaped or enlafged towards their lips. And on the five abdominal » gn„ nts 

 next back of the horns and in a line with them is a row of spines, oiio on each side 

 of each segment near its middle, which spines are iLclined forward, and each has a 



