328 Mr. A. Murray on the Egg of Rhipiphorus paradoxus. 
two by puncturing the body and inserting in each an eg 
taken from the body of a female Rhipiphorus that died. These 
all came to nothing, which, however, might be due as well to 
the eggs not being fertilized or to their being taken from a 
dead mother as to their being put in an unnatural nidus. On 
another opportunity I shall try the experiment of laying the 
egg on the body of the wasp-grub, and see what comes 
ot 1t 
Another thing, however, we gather from these observations; 
and that is, that the Rhipiphorus-eggs are formed and laid a 
few days after the perfect insect comes out; and from this we 
may further argue that, under ordinary circumstances, at all 
events in the second brood, the female Rhipiphorus lays her 
their wings and vigorous and rapid powers of motion (which 
are often pry hemes! enough)? And how about the first 
) e founder of the colony in the wasps’ nest in 
spring? I merely notice these things to show that, although 
- Chapman has taken off the cream of the interest regarding 
the life of the Rhipiphorus by his discovery, sufficient yet re- 
mains to render the study of its habits an interesting subject 
of research, 
