isely: eumenid^ of Kansas. 247 



he says, stores its nest with coleopterous larvae of the genus 

 Phytonomus (one of the Curculionidse), either P. variabilis 

 or P. ruspiciosur, which are common on Lucerne. 



Marlatt"' described the food habits of a small Odynerus. 

 A small Odynerus was observed to examine the leaves of the 

 black locust (Robinia pseudacacia) . Some of these leaves were 

 sewed together by the larva of Pompelia gleditschiella. The 

 wasp eventually rested on the upper surface of one of these 

 tied-together leaves ; then ran to the under side and vigorously 

 bit through the lower leaf. The hole was cut through in a 

 few seconds. Then it grasped Pompelia, gave it a few turns 

 with its mandibles, and flew away. Examination showed that 

 the tree had been thoroughly worked over by Odyneri. 



Schwarz^' said that the cells of Odynerus which are in old 

 burrows of Anthrophora around Washington are always stored 

 with tortricid larvae. 



The Hawaiian species, according to Perkins,^* prey on larvae 

 of the Pyralidas, Noctuidse, and Microlepidoptera. 



Descriptions of Species. 



There are nine species of the Eumenidae upon whose nesting 

 habits I have made observations. There are Eumenes bolli, 

 fraternus; Odynerus arvensis, anmdatus, dorsalis, hildagi, 

 papagorum, sulphuritincUis ; and Pterochilus 5-faciatus. I 

 shall now give a table to distinguish these species, and detailed 

 descriptions of them. 



There is little claim for originality for these descriptions. 

 For the most part I have compiled them from those prepared 

 by De Saussure, Cresson, and Viereck. In some places I have 

 quoted these authors directly, while in others I have para- 

 phrased their descriptions, making some additions and sub- 

 tractions. 



The changes which I have made are mostly of minor im- 

 portance. My chief aim in revising these descriptions at all 

 is to give them more uniformity in regard to arrangement, 

 terminology, and parts described, which would scarcely be 

 possible in unaltered work of three different authors. Also, I 

 wish the descriptions to conform to the Kansas varieties, and 

 am endeavoring to make the former descriptions as brief as 

 possible, for this paper is primarily biologic, not taxonomic. 



16. Proc. Ent. Soc. Wash., toI. IV, pp. 172-173. 



17. Proc. Ent. Soc. Wash., vol. IV, p. 173. 



18. Fauna Hawaiiensis, vol. 1, pt. 1. p. 31. 



