Il8 P. W. WHITING AND ANNA R. WHITING. 



EXPLANATION OF PLATE I. 



FIGS. 9-24. Camera lucida drawings of various parts of gynandromorphs of 

 Habrobracon juglandis, freaks 5 and 32, and of normal males and females for 

 comparison. 



FIGS. 9, 10, ii. Dorsal, sinistral, and ventral view of tip of abdomen of 

 normal male. X 50. 



FIGS. 12, 13, 14. Postero-sinistral, sinistral, postero-ventral views of tip of 

 abdomen of normal female. X 50. 



FIG. 15. Posterior view of tip of abdomen of normal male. X 50. 



FIG. 16. Sinistral view of abdomen of normal male. X 22. 



FIG. 17. Anterior view of head of freak 5. X 32. 



FIGS. 1 8 AND 19. Postero-sinistral and sinistral views of tip of abdomen of 

 freak 5. X 50. 



FIGS. 20 AND 21. Dextral and ventro-sinistral views of abdomen of freak 5. 

 X32. 



FIG. 22. Dextral view of freak 32. X 9. 



FIGS. 23 AND 24. Sinistral and ventral views of abdomen of freak 32. X 17. 



