2. Effect on the primary and secondary sexual characters. 



71 



Table 8 in the Appendix p. 98 shows that 96 out of 140 were modified to some extent, 

 while 1 1 showed the presence of female appendages. With regard to the latter it should be 

 noted that although these female appendages possessed by modified males are usually reduced, 



Abdominal length in millimeters. 



Text fig. 18. Diagram 1. 



Text fig. 19. Diagram 2. 



Text fig. 20. Diagram 3. 



