CAMERON, DIPLOPTERYGA FROM THE SOUTHWEST 81 



Odynerus (?) bradleyi sp. nov. 



Black, the clypeus, a narrow line on the lower half of the upper inner 

 orbits reaching to the lower edge of the incision, a similar line on the upper 

 half of the outer, the base of the prothorax broadly, this mark extending close 

 to the apex of the propleurae where it is narrowed, a narrow line on the lower 

 edge of the propleurae, a large oblique spot widest above on the base of meso- 

 pleurae above, a broad band on apex of postscutellum, a large irregular mark 

 on the sides of apical slope of the metanotum, an irregularly oval mark on the 

 sides of the base of first abdominal segment, the band dilated laterally, and 

 broad bands on the following five segments, bright yellow. The lower edge 

 of the segment on the lower basal half between the yellow and a large mark 

 on the sides of the basal half of the second segment, rufous. Coxae black, 

 the trochanters and femora reddish fulvous, the tibiae red, the tarsi yellow 

 einged with fulvous. Antennal scape yellow below, the flagellum reddish 

 brown below, the apical joints marked with black at the apex, the last rounded 

 above, flat below, roundly narrowed at the apex. Wings fulvous hyaline, the 

 apex smoky, the costa and nervures fulvous. Female, length 13 mm. Col- 

 lected at Durango, Colorado, by Oslar. 



Clypeus not much longer than wide, the top dilated broadly in the middle, 

 the apex with a shallow incision. Antennae longish, stout, dilated towards the 

 apex. Front and vertex closely not very strongly punctured, densely cov- 

 ered with long fuscous pubescence. Temples obliquely narrowed. Pronotum 

 roundly narrowed from the apex to the base, which is keeled, transverse and 

 slightly projecting at the angles. Mesothorax closely strongly punctured, a 

 smooth line down the center of the base, and the two short furrows on the 

 apex. Apex of postscutellum steeply sloped, transverse, smooth and shining. 

 Metanotum short, its sides broadly rounded. Base of metapleurae smooth, 

 irregularly striated below, the apex aciculated and sparsely punctured. First 

 abdominal segment cup-shaped, large, a short but distinct neck at the base, 

 the second is as wide as long and narrowed at the base, both are sparsely 

 weakly punctured, more strongly at the apex. Alandibles reddish at the apex, 

 a yellow spot at their base. Head as wide as the thorax. The thorax is dis- 

 tinctly longer than wide, and is narrowed posteriorly. The whole body is 

 longer than usual with the Odyncrina. The species may be an Epiponus to 

 which it has a greater resemblance than to Odynerus proper or to Pachody- 

 ncrns. 



Oilyiieriis bruesi sp. nov. 



Black, the basal segment of the abdomen red, the clypeus except around apex, 

 underside of antennal scape, the outer edge of tegulae, two irregular spots on 

 the apex of scutellum, a triangular spot below the tegulae, its sides rounded, 

 and narrow bands on the apices of the basal three abdominal segments (that 

 on the first with a shorter black line in front), pale yellow. The apex of the 

 femora and the outer side of the tibiae pale yellow. Wings hyaline, the stigma 

 and nervures black. Male, length * mm. Claremont. California ( Baker) . 



