190 AMERICAN HYMENOPTERA. 



Bracliycystis stietinotus u. sp. 



The distinctly punctured thorax and ridged metathorax serve to 

 distinguish this species from indiscretus, to which it is related. 



%. — 8mm. — Head. — Smooth and shining, almost polished with a few punc- 

 tures; scape a little shorter than the first joint of the flagellum, the pedicellum 

 about one-fourth the length of the first joint of the fiagellum ; in other respects 

 practically as in indiscretus. 



Thorax. — Dorsulum distinctly but very spaj-sely punctured ; metathorax almost 

 entirely smooth, impunctate and shining, the metanotum slightly elevated, 

 longitudinally along the middle, the elevation practically forming segment of a 

 cylinder; wings almost as in indiscretus, but the second submarginal cell is just 

 sessile, and the third submarginal cell is apparently longer than high. 



Abdomen. — Almost exactly as in indiscretus. 



Brown, pleura, coxse, femora and first abdominal segment darker by far than 

 the other brown portions, palpi somewhat whitish testaceous, mandibles testa- 

 ceous, tipped with brown, antenna? dull testaceous, tinted with brown, anterior 

 legs testaceous, all tarsi concolorous with the anterior legs, middle and posterior 

 tibije testaceous, in part partly brown, head black, abdomen, excepting the first 

 segment, very dark brown, almost black in appearance. 



Type. — University of Kansas. 



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



One S specimen taken in June. 



Elis (Trielis) pollenifera n. sp. 



9 . — 22 mm. — Head. — The sculpture of the posterior aspect of the head hidden 

 by pubescence, cheeks, temples and vertex polished and impunctate, excepting 

 for a few scattered punctures near the posterior and lateral boundaries of the ver- 

 tex, front somewhat protuberant from the emargination of the eyes to the vertex 

 and between the insertion of the anteunse and the ocelli, most of the front with 

 almost adjoining punctures all of which are deep and well developed, in some 

 portions of the front, especially near the ocelli and near the eyes, the punctures 

 are as much as five puncture widths apart, a short, deep, rather broad longitudi- 

 nal sulcus traverses the front from a point as far from the anterior ocellus as 

 the latter is wide to a point as from an imaginary line drawn through the 

 posterior margin of the antennal foramina as the anterior ocellus is wide ; cly- 

 peus rather convex and coarsely punctured, the punctures adjoining along the 

 margins in the middle as much as three and four puncture widths apart and on 

 rather nodose elevations of the tegument, the anterior margin slightly reflexed, 

 somewhat membranous, with the anterior and lateral edges forming an undula- 

 ting line; scape shining, sparsely punctured, as long as the four succeeding an- 

 tennal joints combined, pedicellum about as long as the fourth antennal joint, 

 third antennal joint a little shorter than the fourth. 



Thorax. — Lateral aspects of the prouotum with strong, deep, almost adjoining 

 punctures, the anterior aspect thereof smooth, polished and impunctate; dorsu- 

 lum shining, with a large central area impunctate, adjoining this area and to the 

 margin the surface is punctured in much the same way as the lateral aspects of 

 the pronotum, excepting for the limited space traversed by the rather deeply im- 



