314 Mr. H. W. Bates on the Longicorm of the Amazons Valley. 



only very near the apex, the latter rounded; surface thickly 

 punctured, except near the apex, sooty brown, sprinkled with 

 spots formed of dingy-tawny tomentum. Body beneath and 

 legs pitchy, thinly clothed with ashy pile. 

 Santarem, on a dead branch : one example. 



Genus Pachypeza, Serville. 



Serville, Ann. Soc. Eut. Fr. (1835) iv. 



The forehead, muzzle, and eyes in this genus resemble much 

 the same features in Oncideres ; but the crown is narrower and 

 more depressed between the antenniferous tubercles. The body 

 is elongate, but narrower than in any species of Oncideres. The 

 antennae have their joints beneath (including the basal joint) 

 clothed more or less densely with longish hairs. The thorax is 

 cylindrical, about as long as broad, and covered above with 

 transverse wrinkles. The pro- and meso-sterna are extremely 

 narrow. The legs are short and stout, the femora. clavate, the 

 tibiae very short and compressed, and the tarsi have the claw- 

 joint, although elongated, much less robust and shorter than in 

 Oncideres. 



Pachypeza lanuginosa, n. sp. 



P. cylindrica, robusta, fusco-cinerea ; capita latiore ; antenuis dis- 

 tantibus, articulis sex basalibus infra pilis tenuibus dense vestitis ; 

 elytris prope basin confertim et subtiliter granulato-punctatis. 

 Long. 9 1- 10 lin. S ?• 



Head rather broad, forehead between the antenniferous tuber- 

 cles depressed; eyes large, oblong, ashy tawny. Antennae a 

 little longer than the body in the male, about the same length 

 in the female ; terminal joints shorter than the median ones, 

 last joint short and pointed; basal and five succeeding joints 

 densely clothed beneath with very fine hairs ; colour ashy brown. 

 Thorax scarcely so long as broad, surface closely wrinkled, many 

 of the wrinkles not continuous; colour ashy brown. Elytra 

 cylindrical, convex ; shoulders somewhat prominent ; basal fourth 

 of the surface studded with small, regular granulations, accom- 

 panied by punctures ; finely punctured in the rest of their sur- 

 face ; colour ashy brown, deflexed sides paler. Body beneath 

 and legs tawny brown; base of abdomen on each side, and hind 

 legs, sooty brown. 



Ega and S. Paulo, Upper Amazons, on slender woody stems. 



