370 Dr. A. S. Packard, Jr's Revision of the 



middle tibia; black, within pale yellow, basal half of hind tibiae pale 

 yellow, black beyond, the joint subtriangular, widening towards tip, 

 finely and sparsely pubescent, with two rows of slight, slender minute 

 ■spinules ; fore tarsi pale yellow, ungues blackish brown ; 2d — 4th 

 joints of middle tarsi slightly ferruginous, ungues brown ; hind tarsi 

 ferruginous, darker towards tips of joints and on sides. 



Abdomen not so long as the head and thorax together, somewhat 

 flattened, hardly convex beneath, 1 — 5 rings with a pair of greenish 

 yellow fasciae, of which the last pair nearly meet, and the others close- 

 ly approximate, except those on 3d and 4th rings, which are more 

 remote and ovate, 2d pair largest. Tip broad triangular, slightly 

 channeled, surface flat. 



Length of body, .34 ; head and thorax together, .18 ; abdomen, 

 .16 inch. 



Illinois, (Coll. Eut. Soc. Phil.) 



Easily known by its unusually short, transverse head, the nearly 

 black antennae, unequally toothed mandibles, broad and short flattened 

 clypeus ; the broad smooth tibiae aud the two large yellow stripes on 

 the meso-scutellum and meta-scutellum. The body is highly polished, 

 smooth, and the spots and fasciae are of a pale greenish hue. This 

 species leads to the Nyssonidao by its short, transverse head, the shape 

 of its abdomen, and general habit. 



BLEPHARIPUS, St. Fargeau. 

 % . Head transversely oblong, being a little less than one-half as 

 long as broad, narrowing slightly behind; front triangular, somewhat 

 depressed below the margin of the rather globose eyes, median suture 

 deeply impressed; clypeal region two-thirds as broad as the entire 

 head ; clypeus itself full as long as broad, front edge convex, acutely 

 serrated; antennae rather long and slender ; 2d joint slightly swelled; 

 tip tapering, not thickening as in $ ; joints of palpi weak, broadly com- 

 pressed, terminal one slender, cylindrical; mandibles long, slender, 

 bidentate, teeth subequal. Thorax subglobular, longer than in Crabro; 

 propodeum being more sensibly produced; prothorax broad as usual, 

 smooth, convex above ; mesoscutum uniformly a little longer than in 

 Crabro, as is the mesoscutellum. Propodeum with a broad, subcor- 

 date smooth area, which is longer than in Crabro, where it is invariably 

 .striated. Wings with the pterostigma unusually distinct; all the cells 

 are broader and shorter than in Crabro ; 2d subcostal space shorter 

 than usual, 2d subcostal recurrent terminating within the middle of 

 the 2d costal cell, while also the 2d median recurrent terminates in the 





