2s2 



THE AMERICAN NATURALIST [Vol. XLV 



TABLE VII 



Precocity of Males in Colitis philodlcc 







S3 99 



Dates of Pu- 1 SeC °^ 

 pa ion ^ 



.ate 



99 





July 2-9 



1909 

 1909 



» 



Total 



26 



14 

 10 

 13 

 63<?,? 



5 



3 

 1 

 4 



13 9 9 



June 26-29 13 



July 2-4 5 

 July 7-10 3 



July 9-13 5_ 



26,?,? 



12 

 ^9 



50 9 9 



June 29- f 

 July 1 { 

 July 4-6 

 -J ii I V N-l:; 

 .lul'v 13-19 



broods in reaching the pupal stage are J half o/broods^n reaching the pupal 



















1910 



s 



lc 

 2c 

 Id 

 2d 

 3d 

 le 



3 7 

 30 

 20 

 4 

 12 



13 

 18 

 27 



12 



28 

 13 



10 

 6 

 12 



12 

 12 



70 from 2d batch 

 56 fmni 3d batch 

 51.7from 4th batch 



60.6 

 57 

 54.5 

 53.8 

 47.8 



60' 2 

 69 



P 



3g 

 4g 



2i 

 Ik 



s 



21 

 8 

 13 

 14 



13 



*5 

 22 



11 

 12 

 10 



55 



52.5 

 61.5 



37 8 

 42 

 55 

 56.5 

 66.6 



These investigations are by no means finished, and 

 any one who should chance to capture any unusual speci- 

 men of this species, or of any closely allied to it, show- 

 ing melanistic or other aberrant tendencies, would con- 

 fer a great favor on the writer of this paper by mailing 

 to him the specimen alive in a metal box lined with moist 

 filter paper sewed firmly against the perforated sides. 

 A white male is, of course, especially desired. 



In conclusion, the writer wishes to express his hearty 

 thanks to his friend Mr. P. W. Whiting, an accomplished 

 student of butterflies, for his kind and efficient coopera- 

 tion in the field work connected with these studies and 

 in the laborious processes of preparing specimens for 

 detailed examination. The friendly counsel of Dr. W. 

 E. Castle has been also of great value to the writer m 



