SOME SOCIAL WASPS 



289 



in Kansas, when without trees and buildings, suspend their 

 nests in the tunnels of rodents. 



The nests of P. annularis sometimes attain great size. 

 The following data recorded by Pierce 14 are of interest: 

 Of two nests taken in Texas, one had 1575 cells, and the 



FIG. 52. A nest of Polistes annularis among the branches. 



other had 1212 cells. These 2787 cells gave forth 1553 

 wasps of which 1311 were males and 242 were females. 

 Two hundred sixty-six wasps were stylopized by Acroschis- 

 mus pallidus Brues. He says further that stylopized P. 

 annularis are not so active as normal individuals, but are 

 often seen feeding on flowers, and some lived from 13 to 



"Bull. U. S. Nat. Mus. No. 66: 17. 1909. 



