58 WASP STUDIES AFIELD 



garden, apparently fully revived and capable of carrying on 

 all the duties of spiderdom. Of course we must not forget 

 that the spider revived only after fifteen days, and had he re- 

 mained buried with the wasp's egg upon him, he would have 

 been devoured long before the days of his resuscitation. 



The fluid of the sting must have had some preserving 

 influence, because without being stung, it is doubtful if the 

 spider would have lived five weeks without food, under 

 like conditions. 



Pompiloides marginatus Say [S. A. Rohwer]. 



We followed this little black and orange-spotted Pompilid 

 on the ground for a half-hour; she appeared to be foraging. 

 She kept close to the ground amid the sparsely growing grass 

 and only once or twice climbed the grassblades for a few 

 inches. The twitching wings showed that she might easily 

 be aroused to anger, although the head was kept close to 

 the ground, in a very intent manner, often moving from 

 side to side as if in search of something. At one time in 

 particular, it seemed certain that she could not be bent upon 

 any other mission than the quest of prey, for when she 

 came to the small turret of a young spider she became very 

 much agitated and lingered about the place for some time, 

 possibly waiting for the spider to come out, and several 

 times violently rammed her head against the turret. Fi- 

 nally, seeing the fruitlessness of her wait here, she continued 

 her wanderings. Hancock 3 records finding P. marginatus 

 in the tube of the castle-building spider, Lycosa domijex. 



An hour later we watched another of the same species 

 going through exactly similar foraging behavior. 



We found one on the sunny afternoon of August 31, 



3 Ent. News 10: 29. 1899. 



