196 WASP STUDIES AFIELD 



intently, she seemed agitated, and during the half -hour that 

 we watched her, she nervously flew away five times, for 

 no cause that we could perceive. 



We could not wait that day to see her finish the work, 

 so we returned to the spot two weeks later, when we exca- 

 vated the nest and found the pupal case. The hole was 

 exactly like the one in figure 43, going straight down for 

 seven inches, then turning squarely in the direction oppo- 

 site the dirt-pile, to form a chamber. 



Another nest of Chlorion ichneumoneum, found in the 

 sunny side of an open shed at Lake View, Kansas, had two 

 cells about seven or eight inches below the surface of the 

 ground. The pockets were horizontal and sealed, about an 

 inch and a half long by one inch wide. Both cells had been 

 made from the one gallery, and both contained long-horned 

 hoppers of the species Orckelimum calcaratum R. & H. [A. 

 N. Caudell], six in each pocket. The orifice and the main 

 burrow of the hole were one-half inch in diameter. The 

 hoppers, five males and one female, were in one cell, and the 

 egg was fastened to one, ventro-laterally, between the first 

 and second legs ; in the other cell were three males and three 

 females, and the egg was on the ventral side of one. Earth 11 

 finds that this wasp has several cells leading off at right 

 angles to the main passage, and that it stores its nest with 

 as many as twelve grasshoppers. 



For this species, Hancock's 12 notes substantiate the obser- 

 vations of the Peckhams. In addition, he found the prey 

 to be females of Orchelimum delicatum and O. vulgar e and 

 both sexes of Conocephalus attenuatus. He found one wasp 

 to weigh 5 grains and four hoppers weighed 7, 10, n, and 

 10 grains. One wasp made- two nests in succession close 

 together. 



"Bull. Wise. Nat. Hist. Soc. 6: 134- 1908. 



12 Nature Studies in Temperate America, p. 195-201. 1911. 



