172 C. H. TURNER. 



are deposited in nests of wasps that are provisioning their nests, 

 they will be removed and carried to a distance of several yards. 



12. When slight changes are made in the surface of the ground 

 near the nest, wasps returning home laden with caterpillars have 

 difficulty in rinding their homes, and sometimes enter the nests of 

 other wasps. 



13. In the midst of a colony of these wasps other mining Hy- 

 menoptera sometimes establish burrows. 



REFERENCES. 

 Hartman, Carl. 



'05 O. dorsalis aruenis. Bull. Univ. Tex., No. 65, pp. 6-10. 

 Isely, Dwight. 



'14 The Biology of Some Kansas Eumenidae. Kan. Univ. Science Bull., 



Vol. VIII., pp. 235-309. 

 Rau, Phil and Nellie. 



'18 Wasp Studies Afield. Princeton University Press, viii + 372 pp. 



