196 p. CAMERON. 



close in size and coloration to 0. dorsalis Fab. Characteristic is 

 the form of the clypeus, which is broader than usual, clearly 

 broader than long ; tiie apex broad, transverse, with the sides end- 

 ing in minute teeth. It has been taken at Fedor, and Lee County, 

 Texas ; Oslar : Prescott, Phoenix and Cougress, Arizona ; Clear 

 Creek and Berkeley, Colorado. 



V,/Odynerus orasus sp. nov. 



Black ; the clypeus, base of mandibles, underside of scape, a mark with a short 

 pedicle below, gradually dilated from below upwards, the eye incision from the 

 face to the end of the incision, a narrow transverse line on the base of the pro- 

 notum, postscutellum, the apical half of the first abdominal segment broadly on 

 the sides, more narrowly on the apex, a large, transverse, oval mark on the sides 

 of the second segment and the apices of the third to fifth more nariowly, lemon- 

 yellow ; the middle of mandibles, pronotum except at the base, tegulse, the sides 

 of metanotum and the sides of the first abdominal segment round the lateral 

 yellow expansion — broadly on the inner side — and the legs, except at the coxae, 

 rufous. Wings hyaline, the costal and radial cellule smoky violaceous. %. 

 Length (total) 11 mm. 



Head above closely but not strongly punctured ; the clypeus only sparselj' 

 punctured; the latter as wide as long, broadly rounded above, the apex with a 

 deep, wide incision. The antennal hook long, reddish, reaching close to the 

 base of the penultimate joint. Base of thorax transverse, the sides not distinctly 

 projecting. Apical slope of postscutellum smooth, transverse; a deep striated 

 furrow on the metanotum immediately below it. Sides of metanotum rounded, 

 not margined, rugose. First abdominal segment cup-shaped, smooth; the other 

 segments are closely punctured, the second less strongly than the others; its apex 

 broadly depressed, the depression extending beyond the yellow line and is 

 broader in the centre ; the apex is slightly incurved, smooth, with a band of deep 

 punctures behind, there being a similar band of larger and deeper punctures on 

 the others. Coxse black, the four anterior yellow below; the four anterior 

 femora are yellow at the apex below ; the hind coxae and trochanters are black. 



Fedor, Texas ; August. 



This species might be matched with one of the numerous varieties 

 of 0. annulatus Say ; the incised apex of the clypeus readily sepa- 

 rates the male from the latter, which has it not deeply incised, but 

 transverse, with the sides slightly toothed. 



'•■-- Odynerus s^cudderi sp. nov. 

 Black ; the sides of the clypeus broadly, a narrow line on the base of the man- 

 dibles, a mark over the antennaj, broader than long, transverse above, gradually 

 roundly narrowed below, ending there in a nipple-like point, a line on the upper 

 outer orbits, the line reaching to near the middle, a line on the base of thorax, 

 narrowed in the middle, the sides rounded, a small irregular spot below the 

 teguljE, a small spot on the sides of the scutelluni, and broad bands on the apices 

 of the basal five abdominal segments, that on the first broadly narrowed in the 

 middle; a comi)lete band on the apex of the second ventral and triangular spots 



