The Origin of the Markings of Caterpillars. 193 



GROUP 2. This group contains numerous 

 species which; like our native C. Elpenor and 

 Porcellus, show eye-spots on the fourth and fifth 

 segments, whilst these markings are absent, or at 

 most only present in traces, on the remainder. To 

 this section there belong, besides the two species 

 mentioned, five others, viz. in Europe, C. Celerio 

 and Alecto (not certainly known ?) ; 9 in India, 

 C Nessus, Drury, and Lucasii, Boisduval ; 10 and 

 an unnamed species from Port Natal. 



In the species belonging to this group the sub- 

 dorsal line may be more or less retained. Thus, 

 C. Celerio, according to Htibner's figure, has a 

 broad yellow line extending from the horn to the 

 sixth segment, whilst it is completely absent on 

 the three front segments. In the unnamed species 

 from Port Natal 11 the subdorsal line extends to 

 the front edge of the fifth segment, and on the 

 fourth segment only is there a perfect eye-spot, 

 whilst on the succeeding segments traces of such 

 markings can be recognized as dark spots similar 



9 [Eng. ed. Dr. Staudinger has since obtained the caterpillar 

 of C Alecto from Beyrout ; it possesses " a very distinct sub- 

 dorsal line, and on the fourth segment a beautiful eye-spot, 

 which is repeated with gradual diminution to segments 

 7-8.] 



10 Figured in " A Catalogue of Lepidopterous Insects in the 

 Museum of the East India Company," by Thomas Horsfield 

 and Frederick Moore. London, 1857. Vol. i., PL XL 



11 Figured in Trans. Ent. Soc., New Series, vol. iv., PI. 

 XIII. 



o 



