of the Amazons Valley. 1G9 



dusky. Antcimrc slender, a little longer than the body in the 

 female, much longer in the male ; basal joint strongly clavate ; 

 dark brown, bases of the joints, from the fourth, grey. Thorax 

 bituberculate on each side the central ridge, dingy tawny brown. 

 Elytra elongated, gradually and slightly tapering from base to 

 apex ; shoulders conical, base on each obtusely raised, finely 

 punctured, colour uniform brownish tawny. Body beneath 

 tawny brown ; abdomen black down the middle. Legs simple, 

 posterior tibire scarcely dilated in the male; black, thinly clothed 

 with tawny pile ; claw-joints black. 



Ega. 



10. Hypselomus lignicolor, n.sp. 



H. subcylindricus, brimneus ; thoracc et pectore vittis lateralibus 

 obliquis, elytris sutura vittisque lateralibus abbreviatis curvatis, 

 nigris pallide marginatis ; elytris compressis, sparsim punctatis, 

 humeris paulo productis baud tuberculatis. Long. b\ lin. $ . 



Head tawny, spotted with dark brown. Antennas as long as 

 the body ( ? ), moderately stout, brown, unicolorous. Thorax 

 unarmed and free from tubercles, surface smooth, brown ; sides 

 each with two oblique, blackish vittre, the upper one margined 

 with dull ochreous ; there is also a short dusky central line near 

 the middle of the hind margin. Scutellum blackish in the 

 middle. Elytra nearly cylindrical, sides compressed, shoulders 

 produced each into a slightly elevated ridge not surmounted by 

 a tubercle; surface sparingly and finely punctured, brown, su- 

 ture and several curved streaks on each side blackish, the lateral 

 streaks margined on the upper sides with pallid brown. Body 

 beneath brown ; breast with oblique stripes, dull ochreous and 

 blackish ; basal half of abdomen dusky. Legs simple, tawny 

 brown. 



Ega. This species is much more elongate and narrow than 

 the typical forms of the genus; it consorts, however, much better 

 with the Hypselomi than with Hesycha or Oncideres (which com- 

 prehend elongated forms), having antenna; approximated on the 

 forehead instead of widely separated at their bases. It seems to 

 be nearly allied to Hypselomus egens, Erichson (Consp. Col. Peru. 



p. 148). 



11. Hypselomus obscurellus, n. sp. 



H. subelongatus, nigricans, griseo variegatus ; antennis articulo ba- 

 sali apice subgloboso ; thorace postice constricto ; elytris elongatu- 

 trigonis, humeris conico-elevatis, obtusis. Long, oh lin. <S . 



Head dusky, eyes ample; forehead narrow, coarsely punctured; 

 antenniferous tubercles unarmed. Antenna? black, base of joints 

 grey, basal joint very abruptly clavate near the apex, subglobose, 

 third joint very slightly curved. Thorax cylindrical, constricted 

 behind the middle, surface very uneven, coarsely wrinkled trans- 



