382 AMERICAN HYMENOPTERA. 



indistinctly roughened and sbining, tbe former with the sulcus of the metano- 

 tum prolonged down its middle. 



Abdomen. — Shining below, mostly subtle above. 



Color. — Mostly black, scape and pronotum entirely yellow, otherwise as in 

 vichius as described by Fox, Crabroniuse of Boreal America. 



Type. — University of Kansas. 



Type locality. — Base of Humphrey's Peak, 9500 feet, Coconino 

 Co., Arizona. 



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



ARID TRANSITION SPECIES. 



BRACONID^. 



noryctomorpha shoshoiiea n. sp. 



9. — 5 mm. Head. — About as long as wide, almost completely dullish and 

 finely, closely, transversely striate; between the insertion of the antennae and 

 the base of the clypeus there is a somewhat oval, median, longitudinal polished 

 space; the cheeks are partly polished, partly longitudinally striate with strise 

 similar to those on the face and vertex, occipital region polished; in addition, 

 the head is mostly black, the upper half of the eye being engaged by a brownish 

 testaceous mark on the tegument of the cheeks, vertex and face, the lower 

 fourth of the face brownish to yellowish-testaceous, mandibles brown, tipped 

 with blackish ; scape yellowish-testaceous about twice the length of the pedicel 

 which is concolorous with the scape, together these joints are hardly as long as 

 the first joint of the flagel, which last is in turn distinctly longer than the suc- 

 seeding joint, but decidedly shorter than the next two joints combined, flagel 

 more than 18-jointed, brownish-testaceous, to brownish ; joints of the palpi sub- 

 equal in length, filiform and whitish. 



Thorax. — Mostly dullish, black, partly castaneous beneath ; pronotum brown- 

 ish, shining, seemingly sculptureless, almost covered by the forward arching of 

 the raesonotum, which last is divided into three parts by the parapsidal grooves, 

 which are deep and partly somewhat foveate and extend fioni the anterior to the 

 posterior margin of the segment, the lateral parts of the mesonotum are equal in 

 size and somewhat triangular and granular, the middle part is trapezoidal, occu- 

 pying nearly all of the anterior edge and the middle third of the posterior edge of 

 the mesonotum, granular on its anterior half and reticulate on its posterior half, 

 the reticulate portion being traversed longitudinally by three rather irregular and 

 equidistant ridges or strongly raised lines; propleura granular, brownish and 

 broadly margined with foveae on a black surface, the extreme lower margin of 

 this sclerite is somewhat granular and striate; prosternum foveate and brown 

 immediately before the anterior coxae, anteriorly to the latter area pale yellow- 

 ish-brown, transversely striate in part and longitudinally impressed ; mesopleura 

 granular, with a broad oblique foveate impression extending fiom the anterior- 

 inferior angle to near the posterior-superior angle of the segment, the latter seg- 

 ment mostly separated from the mesosternum by a deep foveolate furrow; meso- 

 sternum mostly shining, inconspicuously granular and bisected by a longitudinal 

 foveate impression ; metanotum with most of its space occupied by a rather im- 

 perfectly formed diamond-shaped reticulate area extending from base to apex 



