so 



THE SPRING GRAIX-APHLS OR " GREEX RUG." 



bodies of the viviparous individuals, so long ■£ -ither con- 



tinues or until the females become old and die a natural death. The 

 viviparous forms appear to be is s v. 5 : eptible to extreme cold as are 

 the oviparous individuals. 



From the 14 experiments that were conducted to determine the 

 period of oviposition it was found that it varied from 3 to abou: - 5 

 days. If. after becoming adult, the female be kept for a week or more 

 and then placed with the male it appears that the reproductive period 

 is shortened. 



r::- : — _'-- =:ri=. 



aged. (OrianaL) 



LENGTH OE LIEE OE THE SEXES. 



The males reach maturity, it seems, as quickly as the ovipar 

 females, but their Hves are much shorter. The males live from 8 to 10 

 days after becoming adult. 



The length of life of the oviparous females depends principally 

 upon two fart mely. weather conditions and the presence of the 



male. Under favorable weather conditions, and in the presence of the 

 male, they will live from 31 to 68 days. If the male is not present 

 they will sometimes live as long as 88 days. Under these circum- 

 stances they rarely deposit eggs, only one instance, as previously cited, 

 ing come under our observation where they did oviposit and then 

 the eggs were not fertile. Their abdomens become greatly distended 

 with eggs, and upon being dissected, as many as six or more full-sized 

 eggs may be found. 



