206 AMERICAN HYMENOPTERA. 



Trypoxylon quiiitilis n. sp. 



Closely related to clavatum. The superior face of the metathorax 

 is not appreciably impressed and has longitudinal strife. 



•J,.— 10 mm.— Face below the front with the sculpture hidden by appressed 

 silvery pubescence. Front dullish and rugulose, bisected by a longitudinal me- 

 dian raised line that is most apparent where the silvery pubescence begins and 

 becomes obsolete at the anterior ocellus. The posterior ocelli almost adjoining 

 the eye margin. The space between the latter and tue former being approxi- 

 mately one-third or less than one-third as wide as the space between the poste- 

 rior ocelli. Cheeks shining and apparently impunctate, third segment of the 

 antennse as long as the two succeeding joints combined. 



The sutures of the thorax with a more or less silvery appressed pubescence. 

 With this exception the thorax is rather thinly clothed with rather erect silvery 

 pubescence, which is by far more abundant on the pleura than elsewhere. Dor- 

 sulnm highly polished and sparsely punctured with rather small, inconspicuous 

 punctures. Pleura also polished, but more distinctly and closely punctured, 

 scutelluni much like the pleura in sculpture. Posterior aspect of the metathorax 

 with a distinct narrow longitudinal median sulcus. Abdomen polished and prac- 

 tically impunctate. Very finely and rather inconspicuously sericeous, with very 

 short pubescence. Wings brownish, nervure and stigma very dark brown, almost 

 entirely black. 



Tegulfe brownish. Tarsi brownish, excepting the metatarsus of the posterior 

 legs, which is whitish in the apical half and the second and third tarsal joints of 

 the posterior legs, which are entirely whitish. 



The apical tarsal joints, claws and spines black. 



Type. — University of Kansas. 



One specimen, Douglas Co., Kansas. 



One male taken in July, by E. S. Tucker. 



Philaulhns clarconis n. sp. 



Related to crabroniformis, from which it can be distinguished by 

 the inequality of the punctuation of the 2nd and 3rd dorsal abdo- 

 minal segments. 



9 .—9 mm. —Face below the insertion of the antennae polished. Clypeus with 

 sparse shallow punctures. The lateral face marks adjoining the clypeus with 

 much closer and finer punctures. The supraclypeal space rather closely indis- 

 tinctly punctured, with a median longitudinal sulcus that falls short of the supe- 

 rior margin of the clypeus. Front dull, longitudinally striate and roughened, 

 with a short raised line between the anterior ocellus and the supraclypeal yellow 

 mark. Vertex polished and sparsely punctured with rather deep distinct punc- 

 tures. Cheeks polished and sparsely punctured with smaller punctures than on 

 the vertex. The distance between the posterior ocelli distinctly greater than 

 that between them and the anterior ocellus, and approximately as great as that 

 between them and the nearest eye margin. Third joint of the antennae approxi- 

 mately as long as the 4th and 5th joints combined. Prothorax polished and sub- 



