THE KANSAS UNIVERSITY 

 SCIENCE BULLETIN. 



Vol. VIII, No. 7] JULY, 1913. [vol":gv1fr!NS%. 



The Biology of Some Kansas Eumenidse. 



BY DWIGHT ISELY. 



(Submitted in partial fulfillment of the requirements for the degree of master of arts.) 

 Plates XXXIV to XXXVII. 



Introduction. 



THIS paper is based on field observations and collections 

 made by the author while connected with the Biological 

 Survey of the University of Kansas, in northwestern 

 Kansas during the summer of 1912. Specimens of fully de- 

 veloped insects, upon which biological notes were based, were 

 identified by means of the Snow Entomological Collections. 

 The caterpillars, parasitic larvs, and cocoons, were identified 

 to species or family, as the case might be, by Francis X. Wil- 

 liams, assistant curator of the Snow Entomological Collections. 

 The drawings of nests were made by the author, first in the 

 field, and then were copied in the laboratory. They were inked 

 by Miss Orrel M. Andrews, a graduate student in entomology. 

 Four drawings of wasps, made from specimens in the collec- 

 tion, are entirely her work. 



The author takes this opportunity to thank Prof. S. J. Hunter, 

 head of the department of entomology, to whom he is indebted 

 for general oversight of the work and much helpful criticism. 

 He also wishes to thank Mr. Francis X. Williams for help in 

 studying the Eumenidte both in the field and in the laboratory; 

 Mr. H. B. Hungerford, instructor in entomology, and Miss 

 Ruby C. Hosford, a graduate student in the department, for 

 reading and criticizing the manuscript; and Miss Orrel M. 

 Andrews for assistance in illustration. 



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