16 



G. C. Embody. 

 Table VI. 



7. Recurrence of the Reproductive Activities. 



A. Delia Valle has shown (1889), and the writer has ample data 

 to verify the assertion, that it is only possible for oviposition to take 

 place immediately or very soon after the moulting of the female. The 

 question arises, does it take place after every moult during the repro- 

 ductive period? It is evident that this would depend upon the periodic 

 maturation of the sexual elements of both male and female and also 

 upon the chance meeting of the two animals at the proper time. 



It has been indicated in the preceeding page that males of at least 

 two species may mate during a number of days between two moults 

 and that the sexual impulse may likewise appear during a like period 

 between the two subsequent moults. It is believed by the writer that 

 males of G. fasciatus and E. gracilis are not unlike those of the 

 other two species in this respect. The great frequency in collections 

 made throughout the yearly reproductive period, of males mated with 



