144 



PSYCHE. 



[September 1S91. 



anal segment. The body was covered with 

 short white — or colorless — hairs, and the feet 

 and props were of the body color. The 

 mouth-parts were pink; the anterior edge of 

 the first segment overlapped the head, and 

 was whiter than the head or the body. The 

 caudal horn was yellow at first, then gray, 

 then black. It was straight, stout, blunt and 

 rather long in proportion to the body. Jt 

 had one hair arising from its tip. There 

 was a substigmatal ridge, whiter than the 

 body, from head to tip of anal shield. 



The larvae did not eat any part of the 

 eggshell, but at once went to the leaves 

 provided for them and began to eat. 

 This is unusual in our experience of 

 newly-hatched larvae, most kinds not 

 beginning to feed until at least twelve 

 hours from the egg, though they all 

 drink greedily. After eating the larvae 

 became glassy green, with yellow head, 

 anal segment, feet, props, and substig- 

 matal ridge. 



July 17. 1st moult. — 1-4 inch long. Head 

 small, yellow. Body above green, covered 

 with short hairs seen only with a lens; 

 beneath almost purple. First segment with 

 a dorsal crest of yellow granules depressed on 

 dorsal line. Caudal horn blue-black, long, 

 slender, rough, yellow at sides of base. Feet, 

 props, and spiracles blue-black. 



July 20. 2d moult. — Length 1-2 inch+. 

 Head green. First segment greener than the 

 others, and crested as before, both head and 

 1st segment being granulated with white. 

 Substigmatal ridge yellower. All else as 

 before. 



July 23. jd moult. — 1 1-8 inches in length. 

 Head and 1st segment greener than the rest 

 of body and of a blue-green. Body finely 

 granulated with white. Dorsum very white- 

 green ; sides very yellow-green ; venter 

 almost black. Feet, props, and spiracles 

 blue-black, the latter set in rings of pale 



blue. Caudal horn as before. Crest on 1st 

 segment as before. 



Nine larvae came out of a clear, soft 

 chocolate brown, with the first segment 

 browner, and crested with yellow gran- 

 ules ; the base of the caudal horn yellow 

 on its sides ; spiracles, feet, and props 

 blue-black. There was no difference 

 of color between dorsum and sides, as 

 in the green larvae. They were as 

 vigorous and ate as voraciously as the 

 green ones. One was yellow on dor- 

 sum and brown elsewhere. 



Two others were pale brown on dor- 

 sum, dark brown on sides, and had 

 black heads. The substigmatal ridge 

 was lost at this moult. 



July 27. 4th moult. — Head as before. 

 Venter red-brown with a dark stripe on each 

 side, in which the feet and props were set. 

 Dorsum and sides as before. Feet nearly 

 black with a white bar across the outer side. 

 Props brown barred with darker brown. 

 Spiracles blue-black, each with a white dot 

 t7i the black at each end, and set in a ring of 

 pale blue. Horn as before. 



They varied somewhat in the ventral 

 marks, some having the tan-colored median 

 stripe extend from head to anal props, 

 others from 5th segment to anal props, the 

 first five segments being almost black. 



The dark larvae came out with the head 

 black, not shining. Body deep chocolate 

 brown granulated with white, and lighter on 

 the dorsum. First segment and anal shield 

 and props bright orange granulated with yel- 

 low. Feet and props dark brown. Venter 

 tan-colored, with an almost black stripe on 

 each side. Horn yellow at the sides of its 

 base, blue-black the rest of the way, and 

 rough. 



August 2d they measured from i 3-4 

 to 2 inches in length, and the first ones 



