PAPILIO DEMOLEUS. 



39 



pointed tubercles on segment next head, from between 

 which is protruded, when the animal is irritated, a 

 crimson, Y-shaped, tentacle-like organ, emitting a very 

 peculiar pungent odour. Two similar smaller tubercles 

 on anal segment (but no Y-shaped organ). A very 

 sluggish larva, and as variable in the distribution of its 

 colours as the butterfly is constant in its pattern. The 

 young caterpillar differs strikingly from the full-grown 

 one, being very dark, without green colouring, and 

 clothed with short spines. Feeds on Umbelliferte, Bubon 

 galbanum, and gummiferum, and in gardens on the fennel. 

 Also on orange and lemon trees." 



FIG. 18. Larva and pupa of Papilio demoleus, L. (after figure given 

 by Prof. Trimen.) 



"Pupa. Dark ash-grey or brownish grey, varied with 

 darker shades and streaks. Rather elongate ; the bifid 

 head and thoracic elevation very prominent. Commonly 

 attached to the older stems of its food-plants, which it 

 closely resembles in colour." Trimen, ' Ehopalocera 

 Africas Australis,' p. 18. 



