COLORATION IN POLISTES 



PL. I 



12 



16 



HELIOTYPE CO., BOSTON. 



TYPES OF COLOR PATTERN IN POLISTES VARIETIES 



Fig. i. Extreme Xanthic condition. Fig. a. Modal condition for collection. Figs. 3 and 

 4. Melanic types. Kigs. 5 and 6. Median types with metameric spot. Figs. 7 and 8. 

 Fuscous types. Figs. 9 to 12. Markings characteristic of ventral surface of male. Figs. 13 

 and 14. Further variations in ventral markings of male. Figs. 15 to iS. Markings characteris- 

 tic of ventral surface of female. 



