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



deum smooth and polished throughout like the rest of the thorax; the 

 enclosure .indistinctly triangular, smooth, a small square yellow spot 

 on each side near the insertion of the abdomen. Tegulae fuscous, 

 wings rather thickly clouded, less so on the outer edge ; nervules dark 

 brown, costal nervure and pterostigma pale testaceous, fore femora fus- 

 cous, middle and hind femora darker above; hind femora black above 

 on the basal two-thirds ; tibiae fuscous yellow, beneath yellow; tarsi 

 throughout honey-yellow. Basal joint of the abdomen with a broad 

 yellow stripe, bordered broadly in front with red ; remaining rin^a 

 with a narrow yellow band on the 3d and 4th segments, interrupted 

 in % . Tip of % pale fuscous, of 9 red, with a narrow triangular shal- 

 low groove, nearly twice as long as broad. 



Length, % , .38; 9 , .48 inch. 



Maine, common in August, (Packard). Mass., (Coll. Harris). 

 (Coll. Norton). (Coll. Ent. Soc. Phil.). Shurtleff, Sanborn. 



Its rich brown tint, with the paler peach-like bloom or soft pubes- 

 cence, the dark clouded wings, which contrast well with the pale costa. 

 the broad yellow basal band on the abdomen, bordered with red ante- 

 riorly, and the pale fuscous antennae, characterize one of our most 

 common species. 



Section C 

 This group, comprising so far as known to us, but a single species, 

 is characterized by the very short, thickened antennae, and the plain 

 tip of the abdomen, which is not ridged. Its body also is very short 

 and thick, the thorax rounded, subglobular, the sides of the propo- 

 deuui are tumid ; the tarsi are short, and the clypeus is broad and 

 short, and unusually angulated. 



Gorytes denticulatus. n. sp. 



9 . Body stout and thick, coarsely punctured; head black, coarsely 

 punctured, orbits yellow, clypeus unusually broad, angular, not rounded 

 so much as usual, front einargiuate, edge sinuate, black; labrum short, 

 yellow ; mandibles black, palpi black at base, terminal half fuscous ; 

 antennae unusually short and stout, scape very thick, terminal joints of 

 flagellum beneath slightly denticulate, especially the 3d and 5th from 

 the end, black, scape yellow beneath. Thorax black, very convex 

 above, coarsely punctured like the head; prothorax yellow, tubercle 

 large yellow, with an oblong yellow spot behind it ; sides of the meso- 

 scutum next the tegulaj reddish. Scutellum with a broad yellow 

 band; propodeum tumid, spreading out unusually far on the sides; 

 enclosure very small, not very distiuct, with three slight parallel very 



