f35 
two contained partially paralyzed crickets, three in one cell and 
nine in the other. The victims were in several stages of growth 
and had a body length of from 2.5 to 6 mm., there being 
two adults among them. A majority of the middle and larger- 
sized ones w ere minus a hind leg, and one cricket in each ‘cell 
bore the wasp’s egg arranged transversely and glued at the head 
end behind one of the fore- coxae. The egg is pearly white, 
about 1.66 mm. long and 0.47 mm. in thickness; it is slightly 
curved and somwhat swollen at its free end. One of these eggs 
hatched early in the morning of November 19; the other at about 
6 o'clock that ev ening. 
The cricket victims, hemmed in on all sides 
by a wall of earth, are in a fairly active state; 
they may give one the impression (owing to 
the wasp’s sting) of being tame, for they 
make no violent movements. Pent up in this 
Hieeie7a lard oof dark recess they await their end. At first the 
Notogonidea wil- Wasp grub is a tiny and feeble creature that 
liamsi spinning feeds ‘wholly by sucking the juices from its 
cocoon, X 3/2. yictim’s body, to which it is glued. Thus we 
note the pulsating or undulating movements 
of the gut, visible in the tender grub, as through the ingestion 
of food it darkens in color. Later on the young wasp 
becoming larger and stronger, will push its head within the 
cricket's “body. and thus eat to better advantage. In about thirty- 
six hours we find that at least one of the crickets has been 
devoured and that the wasp grub, evidently having discarded its 
first skin, 1s now more active and very voracious. As with a 
great many other species of wasp grubs, the prey is consumed to 
the last remnant, which, becoming more or less mixed with soil, 
forms an uninviting black mess; this is worked up upon the 
underside of the erub’s body as upon a table, in a rather an- 
terior position. Into this it bites greedily (as illustrated for the 
spider wasp Macromeris, Fig. 40), but, soon becoming dissatisfied 
with such innutritious fare, reaches about with snapping jaws 
for the living game. But all having been placed in a rather 
roomy vial for more adequate study, the inmates moved away at 
its approach; crowded in their natural cell no such opportunity 
for escape offers. However, | tumbled a small victim near the 
ravenous larva, which shortly seized a middle leg and commenced 
chewing it, the owner of said limb offering but feeble resistance. 
Later it bit off a foreleg which it placed on its lap and almost 
entirely consumed. After some more vigorous chewing the larger 
part of a middle leg disappeared, the victim twitching at the 
bites. Then the grub attacked the body itself, the poor cricket 

