TitE dANADlAN Entomologist. 



257 



LIFE HISTORY OF PAPILIO ZOLICAON. 



BY ALICE M. JORDAN, NAPA, CAL. 



Egg. — On September 2nd, 1893, it was found back of Napa College 

 Laboratory, laid singly on the stem of the flower of wild anise. Nearly 

 spherical, base slightly indented, smooth, bluish-white with grayish shade 

 on one side. Diameter, 1.245 ™'^- ^^ hatched September 5th, bursting 

 the shell in halves ; the shell was white. 



First larval stage. — Head rounded, black and shining. Body is 

 largest near the head, with short black hairs rising from two rows of 

 reddish-brown tubercles on segments 2, 3, 4, 5, 6, 9, 10, 11 and 12 on 

 each side of the centre of the dorsal surface, one row near the centre, the 

 other quite low on the side. On segments 7 and 8 are a number of 

 irregular-shaped white spots. Coloured dark brown, scent organs bluish- 

 white. 



September 6 — Diameter, .65 mm.; 



7 

 8 



9 

 II 



12 



13 



14 



IS 

 18 



19 



20 



.80 



.89 



.98 



1.05 



1.08 



1.20 



1-45 

 1.58 



1.64 



1.69 



1.70 



Second larval stage. — Head slightly retracted under joint 2 ; rounded, 

 greenish with a black v-shaped line, the lower part of the v at the upper 

 part of the head, and a short black line in centre of v and two on each 

 side at base. The tubercles on segments 2, 3, 4, 5, 6, 9, 10, 11 and 12 

 are more hairy. The irregular white spots on segments 7 and 8 are some- 

 what larger. Both the dorsal and ventral sides are brown. 



September 21 — Diameter, 1.98 mm.; length, 7.55 mm. 



