THE CANADIAN ENTOMOLOGIST. 65 



After Second Moult — Head and body light green. Body finely 

 granulated ; markings as before, but more distinct. Stigmata marked by 

 red points. Caudal horn reddish, darker in front and behind than on the 

 sides. During this age the head almost ceases to develop, so the body 

 increases rapidly in size from the head to the fifth segment. The third 

 moult ended July ioth, occupying about 30 hours. 



After Third Moult — Head somewhat triangular, and with the body 

 green. Markings as before. Fore legs pink. Stigmatal points red ; 

 body covered with granulations, and much swollen at 4th and 5th seg- 

 ments. Caudal horn straight, greenish white in front and behind, almost 

 white on the sides. The fourth moult ended early July 16th, occupying 

 about 40 hours. 



After Fourth Moult and Mature Larva — Head small, somewhat tri- 

 angular and elongate. Head and first four segments yellowish green ; the 

 rest of the body pea green. Markings as before, without granulations, 

 which have become white specks. The body more heavily marked with 

 these on either side of the back, forming a green dorsal line. Stigmatal 

 marks red, oval, with yellow point at each end. Horn stout, curved 

 backward, sharply pointed, black in front and at the end, red on the 

 sides. 



About one in five varies from this normal form in having the ground 

 color a pinkish brown instead of green. The shadings are then pinkish 

 white. 



The larva when full grown is from 2^ to 3 inches in length. It 

 becomes bluish black before pupating, and several, before leaving the 

 food plant, were noticed rubbing the mouth over the entire body as if 

 covering it with saliva. The food plant was left during the night, July 

 2ist-2 2nd. The pupation was on the ground under leaves, in a slight 

 cocoon made by drawing together leaves and grains of dirt with some 

 silk. The larva became a pupa in from three to four days after leaving 

 food plant. 



The pupa is of a dirty light brown color, with dark chocolate brown 

 spots — these almost covering the wing cases and anterior parts. The 

 eyes and stigmata are black. The pupa is, as well, black between the 

 segments. 



The imago appeared Aug. 12th. The later broods remain in the pupa 

 state of the same early brood ; some emerged ; others, exposed* to the 

 same conditions, remain pupae. 



