86 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 1. NO. 2. 
the hillside, Ave left her, but an afternoon visit, on the same day, 
found her still working industriously, storing from two to three 
crickets an hour. 
As we had had some acquaintance with this wasp, and knew 
that the larva needed only five crickets to carry it through, it 
became evident that the one we were watching was provisioning 
several cells. - Our curiosity in the matter being aroused we took 
up our station beside tlie nest early on the following morning. 
Madam Chlorion was still asleep down in one of her lower 
galleries, while the upper tunnel was occupied by an unsuspecting 
cricket that had crept into this shelter to pass the night, all 
ignorant of the proximity of its deadliest enemy. When the wasp 
came up from below it scrambled out and scuttled off through the 
grass in a great hurry. It was probably quite safe, however, for 
coenileiun does not sting a cricket unless she has gone through 
the preliminary act of hunting for it. A little later in the day we 
provided one for her and put it down into the hole when w^e saw 
her approaching, but instead of making use of it she brought it 
out, carried it to some distance, and set it free, quite unharmed. 
On this morning she came out of her nest at fifteen minutes 
l)efore nine, made a careful survey, on foot, of the surrounding 
grass, weeds, sticks and stones, and then flew away. Half an 
hour later she came back without a load and made another study 
of the locality. Then she began her day's hunting, running up 
the side of the hill and poking her head into every hole and tangle 
that might afford shelter to a cricket. From twenty minutes after 
nine until fifteen minutes after one she worked very industriously, 
taking one rest of half an hour in the middle of the morning, and 
in that period of four hours she brought in sixteen crickets. The 
> length of time occupied in capturing and storing each one may 
be reckoned from the hours at which she returned to the nest, 
these being as follows: 9:27, 9:45, io:to, io:t8, 10:35, 10:40 
(she must have spent this hour rather easily), 10:55, 11 -O^ (here 
she passed half an hour in her nest), it :45, 11 :55, 12:10, 12:20, 
12:40, 12:55, I :05' I -TS- At the end of this stretch of work she 
flew away and had not returned at two o'clock, when we took our 
departure. 
Only once did we see this wasp deliver her sting. When she 
started on her hunting expeditions she usually began close by, 
going either up or down the hillside, running over the ground or 
making short flights, so that we were able to keep track of her for 
some little time. On one of these occasions we saw her dislodge 
a cricket which tried to escape by hiding under some brush. She 
pursued, there was a slight scrimmage in which the sting was 
