5 24 Appendix. 



head and first two joints into the third." Two points 

 in connection with these species are of interest with 

 respect to the present investigations. The green colour 

 and the possession of a long caudal horn when young 

 shows that these larvae, like those of Ch&rocampa Elpcnor 

 (p. 178), C. Porcellus (p. 184), and Philampelus Labruscce 

 (p. 195, note), are descended from ancestors which pos- 

 sessed these characters in the adult state. 4 The next 

 point of interest is the attitude of alarm assumed by these 

 larvae, and effected by withdrawing the head and two 

 front segments into the third. 6 The importance of this 

 in connection with the similar habit of ocellated species 

 will be seen on reading the remarks on page 367 bearing 

 upon the initial stages of eye-spots. The other species 

 figured by Mr. Riley are Ch&rocampa Pampinatrix, 

 Smith and Abbot, and Thyreus Abbott, Swains. The 

 latter has already been referred to (p. 256). 



In a paper " On a Collection of Lepidoptera from 

 Candahar" (Proc. Zoo. Soc., May 4th, 1880), Mr. A. G. 

 Butler has described and figured, from materials fur- 

 nished to him by Major Rowland Roberts, the larvae of 

 three species of Sphingidce. Charocampa Cretica, Boisd., 

 feeds on vine ; out of 100 specimens examined, there 

 was not one black variety, while in another closely allied 

 species, found at Jutogh and Kashmir, the larva is stated 

 to be as often black as green. The general colour of 

 the caterpillar harmonizes with that of the under side of 

 the vine leaves ; it possesses a thread-like dorsal, and a 

 pale yellow subdorsal line ; also " a subdorsal row of 

 eye-spots, each consisting of a green patch in a yellow 

 oval, the first spot on the fifth segment being the largest 

 and most distinct, those on each following segment 



4 The same inference has already been drawn with respect 

 to Pterogon (Proscrpinus) (Enothera, see pp. 257, 258. 



6 This would of course be \.\\Q fourth segment if the head be 

 considered the first, as on the Continent. 



