196 AMERICAN HYMENOPTERA. 



two grooves, oue on either side of a median portion as high as and continuous 

 with the elevated portion of the segment, the grooves indistinctly, equally parted 

 by low raised lines across the shortest diameter, teeth sharp, nearly as long as 

 the distance between the latero-median and lateral teeth, the latero-median teeth 

 about one and a half times as far apart as the latero-median and lateral teeth. 



Almost uniformly metallic green and covered with conspicuous white pubes- 

 cence, the hairs of which are about as long as the penultimate joint of the flagel- 

 lum, and while abundant, not sufficiently-close together to at all obscure the teg- 

 ument. 



Type. — University of Kansas. 



Type locality. — Clark Co., Kansas, 1962 ft. 



One specimen, taken in May by F. H. Snow. 



0«l.yiierus (Ancistrocerns) bustamenti Sauss., 9- 



Hamilton Co., 3350 ft. (F. H. Snow). 



One specimen, with only a slight indication of yellow on the 

 postscutellum. 



Odyuerus delodoulus s. sp. 



Related to hlandus. Superficially like toas. Has no tooth back 

 of the postscutellum. 



9. — 11 mm. — Head. — Clypeus convex, with elongate almost adjoining punc- 

 tures, truncate at tip, the truncation rather rounded out and bounded on each 

 side by a short tooth, the remainder of the head with practically adjoining punc- 

 tures, which are smaller than those on the clypeus and not elongate as there. 



Thorax. — Punctured almost exactly like the head exclusive of the clypeus; 

 postscutellum and metathorax almost as in hlandus, the metathorax, however, has 

 no crest or any elevation whatever where it comes in proximity with the post- 

 scutellum, and the excavation is not strigose but covered with rather indistinct 

 shallow adjoining punctures. 



Abdomen. — As in blondu.f, but the dorsum is convex, not depressed and with the 

 punctures not so scarce and close as those on the thorax ; the punctures of the 

 second dorsal segment smaller and closer than those on the first dorsal segment, 

 the posterior margin of the second dor.sal segment very slightly reflexed. 



CoZor.— Differs from blandus as follows: clypeus with a line on the posterior 

 margin, no line between the eyes, line of yellow between the superior and poste- 

 rior aspects of the metathorax and the lateral aspect of the metathorax ; first, 

 third, fourth and fifth ventral and fourth and fifth dorsal abdominal segments 

 without yellow, mark on the second dorsal segment present as round spots about 

 half the size of the clypeus and free, the second ventral segment with no yellow 

 excepting the rather narrow apical band. 



Type. — University of Kansas. 



Type locality. — Clark Co., Kansas, 1962 ft. 



One female specimen, taken by F. H. Snow. 



