254 KANSAS UNIVERSITY SCIENCE BULLETIN. 



and Connecticut. Ashmead records having found it in Florida, and 

 Harris in Massachusetts. In the Snow collections of Kansas Univer- 

 sity all the specimens are from Kansas. 



Pterochilus 5-faciatus Say. 



Pt. 5-faciatus Say; Long's Exp. to Sources of the St. Pet. Riv., II, Supp. 



70; 1824. 

 Rhynehium 5-faciatiam Say; Bost. Jour. I (1837), 385. 

 Pt. 5-faciatus Sauss.; Syn. Am. Wasps Sol., 371-372; 1875. 

 o . Total length, 17 mm.; wing, 15 mm. 

 ^ . Total length, 12 mm.; wing, 11 mm. 



Q . Mandibles large, armed with four lobiform teeth besides apical 

 point, their external sides strongly ciliated with long hair. Clypeus 

 transverse, sparsely punctate; postei'iorly convex; somewhat produced 

 in the middle; anteriorly rapidly narrowing toward apex, which is 

 deeply emarginate; points of emargination toothed. Whole body punc- 

 tate; head and thorax densely so; basal halves of first and second ab- 

 dominal segments finely and sparsely, punctations increasing in density 

 and coarseness towai-d distal margins of the segments; pygidium densely 

 punctate. Thorax globular. Abdomen ovate, subsessile; second seg- 

 ment with a transverse carina at the base. Apical segments of the ab- 

 domen, posterior edges of tibia, and tarsi covered with sparse light 

 brown pubescence. Black; strikingly marked with ferruginous and 

 yellow. Head black, except mandibles, clypeus, first and second joints 

 of antenna and a postocular spot, ferruginous. Thorax black, except 

 prothorax, tegulae, a spot on the anterior margin of the scutum, sides 

 of metathorax, lateral margins of its concavity, and sometimes a spot 

 below the tegulae, ferruginous; two large spots on scutum, the post- 

 scutellum, and sometimes a spot under the tegulse, yellow. All the ab- 

 dominal segments broadly margined with yellow. First abdominal seg- 

 ment ferruginous, with a wide black line along the center of the dorsum; 

 second segment black with large ferruginous spots, sometimes touching 

 the anterior margin, on either side. The remaining segments black. 

 Wings smoky. Coxae sometimes black; otherwise the legs are fer- 

 ruginous. 



^ . Smaller. Clypeus hexagonal, seven-sided, the anterior side 

 deeply notched; widest anteriorly; yellow. Anterior margin of pro- 

 thorax, a spot below the tegrulae, and a postocular line, yellow. On the 

 first abdominal segment there is a small yellow spot in the large fur- 

 ruginous spot on the sides. 



Habitat: Kansas, Missouri, and Texas. 



The Field of Observation. 

 The observation and collections upon which this paper is 

 based were made, as I have previously stated, in twelve coun- 

 ties of northwestern Kansas, in connection with the Biological 

 Survey of the University of Kansas. The survey was made 

 under the direction of Prof. S. J. Hunter. Mr. Francis X. 



