HENRY L. VIERECK. 405 



Color. — Blackish and brownish ; head brown ; flagel mostly sort of a blackish 

 testaceous; scape and legs practically entirely honey-testaceous; wings clear, 

 with the stigma and nervures less brown to brownish testaceous. 



Type. — University of Kansas. 



Type locality. — Lawrence, Kansas. 



One specimen taken at twilight in August. 



Upper Sonoran Species. 

 Odyiieriis (Sttenodyiierus) congresKSiis n. sp. 



Differs from the description of my.^tecus (Sauss. Am. Wasps), as 

 follows : 



9 • — 8 mm. — Head. — Clypeus not reticulate-rugose, but with coarse, mostly 

 separated punctures, prolonged into two rather long teeth with a deep emaigina- 

 tion between, its basal third luteous, like a line along the lower margin of the 

 eniargination of the eye and a somewhal Y-shaped mark above the insertion of 

 the antennae; a yellow spot behind each eye. 



Thorax. — Edge of the pronotuni not at all punctured, metathorax smooth or 

 finely striate and punctured, not at all velutinous; anterior third of the prono- 

 tuni yellow, tegulse excepting a testaceous spot near their center and a concolor- 

 ous margin, luteous, the following jilaces also luteous: mark beneath the tuber- 

 cles; postscutel and a spot on each side of the metathorax yellow, femora mostly 

 black, with a brownish stripe above and a yellow mark at apex, anterior tibiae 

 striped with yellow, brown and black, middle and posterior tibiae mostly brown 

 and yellow, all tarsi and claws more or less dark brown. 



Abdomen. — First dorsal segment with a yellowish luteous border along its 

 apical margin, the border being prolonged on each side, apical margin of the 

 second dorsal segment rather luteous, the corresponding ventral segment of a 

 similar color on each side, the pale color shading ofl' into a narrow line of brown 

 in the middle of the segment. 



Type. — University of Kansas. 



Type locality. — Congress Junction, Arizona. 



Taken in July by F. H. Snow. 



Lower Sonoran Species. 

 Odynerus pimorum u. sp. 



Pubescence inconspicuous, silveiy, mostly yellow. 



%. — 11 mm.— Head. — Eniargination of eye practically parallel sided and 

 nearly twice as long as wide across the middle of its short diameter, clypeus 

 occupying the greater part of the lower half of the face and nearly as wide as 

 long, convex, smooth, apparently impunctate and covered by a short appressed 

 pubescence, which in certain lights obscures the surface and gives it a silvery 

 sheen, anterior margin regular and about as long as the lateral margin ; vertex 

 with a longitudinal rather indistinct impression extending from near the ante- 

 rior ocellus posteriorly close to the posterior margin of the head ; a black area 



TBANS. AM. ENT. SOC. XXXIII. JANUAKY, 1908. 



