252 KANSAS UNIVERSITY SCIENCE BULLETIN. 



superior lateral edges of the concavity of the metathorax, posterior 

 borders of all abdominal segments, and a spot on each side of the second 

 abdominal segment. Wings subhyaline, deepened to fuscous in cells 

 along anterior edge; interior and middle femora black, browTi and luteous, 

 posterior femora black and brown; tibia and tarsi reddish brown; middle 

 and posterior tibia ornamented with a luteous strip on external aspect. 

 J . Smaller. Clypeus polygonal, deeply emarginate anteriorly, finely 

 punctured, a supraclypeal mark extending to posterior margin of the 

 clypeus, and middle. and posterior coxae or a spot on those coxae, yellow. 

 Types o and t in Snow collections. This museum possesses speci- 

 mens from Kansas and Arizona. 



O. sulfuritinctiis Vier.' 

 O. siilfuritmctus Vier; Trans. Am. Ent., 88, 389-390; 1907. 



2 ■ Total length, 13 mm.; wing, 11. .5 mm. 



J . Total length, 10 mm.; wing, 10 mm. 

 A medium-sized black wasp, much ornamented with yellow. 



o . Clypeus pyriform, longer than wide, anterior edge emarginate. 

 Thorax elongate, narrowed behind; the concavity of the metathorax 

 striate, its lateral margins forming on each side a dentiform angle. Ab- 

 domen ovate; first segment half as long as second; second segment re- 

 flexed. Entire body distinctly and densely punctate; punctures finest on 

 first abdominal segment and base of second segment. Wasp covered with 

 sparse golden pubescence. Black. Yellow confined as follows: a line 

 on the basal half of the mandibles, clypeus excepting the margins of the 

 anterior half and a ti-iangular space in the middle, a spot between the 

 insertion of the antenna, the anterior aspect of the scape, a postocular 

 spot; on the thorax a wide anterior border of the prothorax, portion of the 

 tegulae, a spot below the tegulae, postscutellum, a spot on the superior 

 lateral margins of the concavity of the metathorax; on the abdomen, all 

 segments broadly bordered apically with yellow, this border continuing 

 laterally, on the first and second segments, to basal margins of the seg- 

 ment. Coxas and base of femora black; apical end of femora and tibia yel- 

 low; tarsi yellowish, with tendency toward brownish, especially in pos- 

 terior pair. Wings brownish vidth yellow reflections. 



T . Smaller. Differs from female as follows: clypeus entirely yel- 

 low, no yellow marks in metathorax; yellow marks on anterior coxse; 

 tibia and tarsi more brownish than yellow. 



Types o and ^t in Snow collections, University of Kansas. 



Habitat: The museum possesses specimens from Kansas and Arizona. 



Eumenes bolli Cress. 



E. bolli Cress.; Hymenoptera Texana, Trans. Am. Ent., 4; 1872. 



o . Total length, 1.5 to 17 mm.; wing, 13 mm. 



^ . Total length, 13 mm.; wing, 11 mm. 



o . Clypeus octagonal ; the anterior side deeply emarginate, terminat- 

 ing on each side in two teeth, the parallel lateral sides with the anterior 

 oblique sides forming dentifonn angles; surface convex, finely punctured. 

 A short but prominent carina between the antennae. Head and thorax 



