J/ 

Fig. 23. Egg of S. manilae on Anomala grub, X 5 (after Swezey). 
spins a light brown, cylindrical oval cocoon (Fig. 25), in the 
space formerly occupied by the grub. The cocoon is about 12 
mm. long and more broadly rounded at the head than at the 
caudal extremity. It 1s frequently spun against the remains of 
the larva and further supported in its cell by some loose periphe- 
ral strands of silk. The enclosed grub now has a resting stage 
of from a few days to some weeks, depending chiefly on the 
pe and humidity. It finally sheds its skin for the last 
(probably about the fourth) time and thus becomes a pupa, 
delicate, whitish and with appressed or folded appendages. Dur- 
ing this stage, which is always brief, it is capable of wriggling its 
abdomen a little. The cocoon stage lasts three weeks or more—- 
rarely less—according to season. The wasp casts off the thin 
pupal envelope but waits until it gains sufficient strength and 
hardness before neatly cutting off a lid from the head end of the 
cocoon to make its escape. 
The life-cycle of Scolia manilae in the Philippines varies from 
about thirty days to over two months—being longest during the 
