CATERPILLARS. 219 



This particular caterpillar was green, with green 

 branched spines all over the body and two long 

 brown horns on the head. 



Papilios lay their eggs singly, often 011 the 

 extreme tip of a leaf-bud, which opens by the 

 time the egg is hatched. When not eating, the 

 caterpillars rest in the middle of the leaf, going 

 to the edge of it when hungry by a series of 

 slow jerky movements, curiously moving their 

 heads backwards and forwards and from side to 

 side in a most fidgety manner. When satisfied 

 they return to the middle of the leaf and remain 

 motionless. The first stage of the larva of P. 

 Antheus is deep bright red, with bands of yellow 

 near the head ; that of P. Porthaon is like a 

 bit of shining steel, both looking very pretty 

 in the centre of the leaf. 



All the caterpillars of the Acrceas that I have 

 seen are thickly studded with spines, that of 

 A. Rabbaice being bright red with black spines, 

 and make elegant suspended pupa coverings, 

 through which the future wings can be most 

 plainly distinguished, more so than in any other 



