278 [May, 



Length seven-eiglitlis of an inch, the body tapering at each end, and thickest in 

 the middle, especially when yiewed sideways ; the head small and rather flattened, 

 the segments plump and well defined on the back and sides, and more particularly 

 on the belly where they are deeply cut, and very tumid at the setting on of all the 

 legs, especially the ventral ones, which are rather long, slender, and spreading a little 

 at their hooked extremities, the anal pair extending backwards and a little outwards ; 

 the anterior legs very well developed. In colour the glossy head is light drab, speckled 

 with dark brown, and having the papillis tipped with brown ; the second segment, 

 also glossy, is green above, with the boundary of a plate defined on either side by a 

 series of four black dots decreasing in size from the front ; on the rest of the back a 

 dark green dorsal stripe, which is attenuated a little towards each end, its course 

 relieved on either side by a broad stripe of opaque pearly greyish-white, followed by 

 a broader semi-transparent green stripe, distinct without hardness, margined below 

 by a thi-ead-like opaque whitish line which thickens as it approaches each segmental 

 division ; on this line are situated the small circular black spiracles ; all beneath, 

 including the belly and legs, have a pale watery tint of greenish ; the tubercular 

 warts have each a fine silky hair ; the whole skin is tense, sliining, and more or less 

 translucent. 



On the 25th August this larva ceased to feed, left the plant, and spun a web in 

 a corner at the top of its cage, having by degrees become of a beautiful opaque rose- 

 pink colour on the back, and greenish-flesh colour on the belly, destitute of any line 

 or stripe, the head alone remaining unaltered in colour and markings. By the 31st 

 I found the web completed ; it was of triangular shape composed of whitish silk 

 enclosing a space an inch in length ; within was a hammock-like cocoon of finer white 

 silk, and in this lay the larva. Its coloui-ing again changed to an uniform flesh tint ; 

 and from this time it rested quiescent, without any further change in its appearance, 

 until the last week in April, 1875, when I saw its position was different, and it 

 seemed a little shorter and tliickcr than before ; on the 3rd May I found it had 

 pupated. 



This piipa was three-eighths of an inch in length, moderately slender in form, 

 with the wing and antenna cases long, the abdominal tip terminating with four or 

 five minute bi'istles converging at their extremities, which were entangled in the silk 

 of the cocoon, the old larval skin lying bcliind them ; the colour of the pupa was a 

 very pale brown, with shining surface. 



Of the three other full-grown larvffi before mentioned, it will suflice to say that 

 their details were just as I have already described ; the variations were simply in 

 tlie depth of the colouring : one much darker than the others, in which the light 

 stripes of the back were greenish-grey ; the other parts proportionally darker : another 

 was much paler, the stripes of the back being ivory-white : their liabits also were 

 similar. Two of them reached the roseate stage on the 9th September, the 3rd ou 

 the 12th. 



One spun its cocoon on the straight upper edge of its cage, against the gauze 

 top, to which it partly adhered ; this was extcrioi'ly much of a hammock shape ; this 

 larva pupated May 6th, 1875. The two others choose to spin themselves up under 

 two or three leaves, which they securely fastened to the side and bottom of their 

 respective cages, hidden from observation. 



