288 [^^^y- 



enoiigli to find any variety of the larva, differing from that which I 

 shall presently describe, I shall be most thankful for the loan of it, 

 and will make the best return in my power. Boisduval, after making 

 two grand varieties, the green and the brown, proceeds to enumerate 

 no less than three sub-varieties under each of these heads, and then 

 says, beside these six there are to be found yet others. 



To complete my history of the individual I had the pleasure of 

 watching, I may say that it increased slightly, though percej)tibly in 

 length and bulk, till on the fourth day it ceased to eat, became ex 

 tremely restless and active, and on being supplied with soil, entered it 

 for pupation on the evening of the fifth ; unfortunately, however, it 

 died without completing the change, the earth proving too drj and 

 friable, I found it had not been able to make a chamber for itself, 

 after having gone down to a dej)th of two inches. 



The pupa, which as mentioned by Mr. "Walker at p. 162 of this 

 vol., had been found in a 2)otafo field, in the Isle of 8heppy, reached 

 me on December 11th, in lively condition, and, I am glad to say, it bore 

 the journey hither and back, as well as the ordeal of sitting for its 

 portrait, without any detriment. 



The larva, wlien full-grown, measured exactly fom* inches, and m diameter 

 five-eighths of an inch : it was cylindrical, though tapering gradually from the 

 fifth segment to the head, wliich was decidedly the smallest segment, and flattened 

 in front ; the thirteenth also tapered a little at the end ; the twelfth bore a 

 smoothish. dorsal pointed horn, arching backwards over the anal flap ; the segmental 

 divisions were deeply defined, as were also the intermediate wrinkles, which sub- 

 divided each segment of the body above into eight distinct rings, the first ring wider 

 than the others, but none of them extending beyond the spiracles ; the ventral legs 

 full and stout ; the anal pair large and of a squarish form ; the texture of the skin 

 was smooth, but for the most part without gloss. 



The colour of the head was bright ochreous, and shining, the sutiu'cs finely out- 

 lined with black, and with two black stripes on each lobe down the side of the face ; 

 the general ground colour of the back, belly, and part of the side, was a deep 

 blackish-brown ; the sub-dorsal bright ochreous stripe was quite perfect on the 

 thoracic segments, but, beyond them, showed only as a squarish spot on the first ring 

 of each segment until the twelfth, where it faintly continued to the base of the 

 caudal horn ; however, its entire course was indicated plainly enough by a double 

 row of deep brownish-ochreous longitudinal little streaks showing on the darker 

 ground ; similar streaks of brownish-ochreous covered the rest of the back, but with 

 a regular order and design : there were none on the first of the eight siib-divisions 

 of each segment, but on the other seven there was a double series converging 

 forwards to a point near the second ring, other rows forming a bi'oad bordering to the 

 inconspicuous narrow black dorsal line — this line, indeed, would not be very notice- 

 able, were it not better defined on the first ring of each segment ; but it was there 



