1G8 Mr. II. W. Bates on (he Longicorn Coleoptera 



clytris grosse punctatis, humeris modice productis, obtuse trun- 

 catis, truncaturse angulo ]>ostico acuto ; maris articulo 12'"° an- 

 tennarum longiusculo, curvato. Long. A\ mi « <$ • 

 Head clothed with thick tawny-grey pubescence, vertex 

 spotted with brown ; inner side of each antenniferous tubercle 

 {<$) produced into an acute tooth. Antenna) towards the base 

 grey, spotted with dark brown ; apices of third to eleventh joints 

 dusky, bases of joints from the fourth testaceous. Thorax con- 

 vex, unarmed, grey, coarsely punctured (especially on the sides) 

 and spotted with dark brown. Elytra moderately broad at the 

 shoulders, the latter not conically produced, but obtusely trun- 

 cated, with the posterior end of the truneature acute ; surface 

 thinly clothed with grey pile, and coarsely punctured, simply 

 convex. Body beneath and legs clothed with tawny- grey pile, 

 spotted with blackish, base of claw-joint testaceous ; apical half 

 of posterior tibia) strongly dilated ( <$ ). 

 Ega. 



8. Hypselomus crassipes, n. sp. 



II. robustus, brunneus ; tborace lateribus pallidis ; clytris utrinque 



macula oblonga transversa cretacea ; pedibus crassis, nigris, tibiis 



posticis maris trigonis. Long. Sh lin. <$ . 



Head coarsely wrinkled, black ; antenniferous tubercles pro- 

 duced on the inner side into a stout spine ($). Antenna) 

 scarcely so long as the body, bases of joints, from the fourth, 

 pale testaceous; twelfth joint (<^) short and twisted. Thorax 

 convex in the middle, without distinct tubercles, a short obtuse 

 tubercle on each side; above dark brown, sides dingy tawny 

 white, traversed by an indistinct dusky stripe. Elytra broad 

 and but slightly convex ; shoulders conically produced, base on 

 each side obtusely elevated and very coarsely granulate-punctate, 

 sides under the humeral projections also coarsely punctured, 

 rest of the surface faintly punctured; dark brown, base dingy 

 tawny white ; each elytron beyond the middle ornamented with 

 a distinct oblong, transverse, chalky spot. Body beneath dingy 

 tawny; abdomen black in the middle. Legs very stout, black; 

 tibia) compressed; hind tibiae ($) dilated from the base, and 

 obliquely truncated at the apex; claw-joint red. 



Tapajos. Apparently allied to H. fasciatus of Thomson; but 

 no mention is made by this author of any peculiar formation 

 in the legs. 



9. Hypselomus simplex, n. sp. 



77. subelongatus, brunneo-fulvus, unicolor ; elytris modice attenuatis, 

 humeris conicis ; antennis gracilibus, articulis basi griseis. Long. 

 6|-9 lin. 6 $ • 

 Rather more elongate than the allied species; but the elytra 



rather convex, and the third antennal joint strongly bent. Head 



