Cljt Canadian ^ntomolofiist. 



VOL. XIII. LONDON, ONT., SEPTEMBER, 1881. No. 9 



NOTES ON THE PREPARATORY STAGES OF PAPILIO 

 CRESPHONTES, Cram. 



BY G. H. FRENCH, CARBONDALE, ILL. 



Egg — Spherical, a little flattened at base, .o6i<( inch in diameter, pale 

 ochre with sometimes a greenish tinge, at others inclining to orange. 

 Duration of this period six days. 



Young Larva — Length . 1 1 inch ; the body covered with tubercles from 

 which project small spines ; color dark brown, the tubercles on all but the 

 first of the anterior joints a little lighter, joints 6 and 11 straw color. 

 Duration of this period three days. 



After I St Moult — Length .31 inch. General color and shape the 

 same, the body having a shining appearance, six tubercles on each of the 

 first four joints, the upper four more prominent, two small tubercles on 

 the back of each of the other joints, the posterior pair more prominent, 

 joints 6 and 1 1 a little paler than before. Being busy, no notes were 

 taken of the second moult, but the general appearance was much the 

 same. From the first to the third moult was six days. 



After the 3rd Moult — Length .75 inch. Body shining, appearing more 

 as though wet, the tubercles all disappeared except on joints i to 4, joint 

 3 the largest, from joint 4 to 5 an abrupt decrease to the size of the pos- 

 terior joints ; head olivaceous, the ridge on joint i pale olivaceous, parts 

 of joints 5 and 6 creamy tinged with olivaceous, the terminal part of body 

 somewhat enlarged and pearly whitish on the back, tinged with olivaceous 

 round the edges, the rest of the body olivaceous brown. Duration of this 

 period five days. 



After 4th Moult — Length 1.25 inches; the dark parts rich dark 

 brown ; a prominent ridge over the middle of joint 3 and over the back 

 part of joint 4 a lighter shade of brown, each ridge containing several 

 white rings, there also being a few on the dorsum in front of the ridge on 

 joint 4 ; a white band above the head, this organ when the animal is at 



