NO. 2242. MORPHOLOGY OF THE STREP&IPTERA— -PIERCE. 393 



and 5 females, and two with 4 males. The parasites were located as 

 follows : 



Five males protruding from the second segment, dorsal ; 5 males protruding 

 from the second segment, lateral ; total, 10. 



Ten males protruding from the third segment, dorsal; 7 males protruding 

 from the third segment, lateral ; 3 males protruding from the third segment, 

 ventral ; total, 20. 



Five males protruding from the fourth segment, dorsal ; 2 males protruding 

 from the fourth segment, lateral; 3 females protruding from the fourth seg- 

 ment, ventral ; 2 males protruding from the fourth segment, ventral ; one female 

 larva in the fourth segment ; total, 13. 



Two females protruding from the fifth segment, dorsal ; 1 female protruding 

 from the fifth segment, lateral; 2 females protruding from the fifth segment, 

 ventral ; total, 5. 



The males were all pupae. The largest number of parasites in a 

 single segment was 7 protruding from the third segment of the wasp 

 that had 11 parasites. These were located 4 dorsally, 2 laterally, and 

 1 ventrally. 



POLISTES AURIFER Saussure. 



Prof. L. Bruner collected a female wasp at Auburn, California, 

 August 14, 1915, with a female parasite behind the fifth dorsal 

 sclerite. It was full of triungulinids. 



POLISTES VARIATUS Cresson. 



Mr. S. E. Crumb collected a female on November lO, 1915, at Clark- 

 ville, Tennessee, with four empty male puparia, three in the third dor- 

 sal and one in the fifth dorsal segment. The contents of the body 

 cavity were very greatly crowded and reduced. On November 24, 

 1915, Mr. H. F. Lomis at Lanham, Maryland, collected five female 

 wasps, four containing one female each and one with a male pupa. 

 All the females occurred in the fifth dorsal segment, while the 

 male was in the fourth dorsal. 



POLISTES BELLICOSUS Cresson. 



The writer collected, on August 25, 1913, in the Santa Rita Moun- 

 tains, Arizona, a female wasp which contained four male puparia, 

 (wo behind the third dorsal, one behind the fourth dorsal, and one 

 behind the fifth dorsal segment. The wasp's body organs were con- 

 siderably crowded. The ovaries contained one fully developed egg, 

 and all the others were very small. 



ODYNERUS, species. 



The writer collected on August 24, 1913, at Tucson, Arizona, a 

 female wasp which contained two female parasites, one behind the 

 third dorsal and the other behind the fourth dorsal segment. Tri- 

 ungulinids were crawling on the wasp's body. 



