148 [J«iy. 



pubescent; obscure castaneous, darker beneath, the eyes, antennae, outer joints 

 of the palpi, and a streak on the elytral suture before the tip, black, the legs 

 piceous, with the tarsi and the bases of the tibiae rufo-testaceous ; head and 

 prothorax very densely, extremely minutely, the elytrp. finely and closely, 

 punctate. Head slightly wider than the prothorax, the eyes extremely large 

 and separated by about one-third of their own width ; antennae short, barely 

 reaching the base of the prothorax, joints 5-10 triangular, about as broad as 

 long. Prothorax cylindrical, as long as broad, the sides slightly rounded 

 anteriorly, uncompressed, the basal groove sharply defined. Elytra elongate, a 

 little broader than the head, very gradually widened to the middle, the disc 

 slightly depressed near the suture, the latter hollowed before the tip. Legs 

 comparatively short. Ventral segment 3 with a compressed, sub-triangular, 

 dentiform, flavous prominence in the middle at the apex. Length 6f, breadth 

 If mm. 



Hah. : Brazil, Valley of the Rio Pardo in Sao Paulo (Gounelle: 

 xii.'98). 



One male. Less elongate, and with shorter limbs, than C. apicalis 

 Pic, the puncturing of the upper surface finer, the antennae black, the 

 prothorax not compressed laterally, the eyes more approximate. The 

 ventral armature of the male is peculiar, and the only allied insect 

 known to me that has anything approaching it, is Ospliya tuber- 

 culiventris Champ. 



4. — Conomorphus convexus, n. sp. 



Elongate, narrow, rather convex, the head and prothorax opaque, the rest 

 of the surface shining, finely pubescent ; obscure testaceous, the head and pro- 

 thorax rufescent, the latter suffused with piceous, the sterna, the oblong sub- 

 apical callosities on the elytra, and the base of the latter indeterminately, also 

 more or less infuscate, the antennae and legs testaceous ; head and prothorax 

 densely, very minutely, the elytra closely and finely, punctate. Head a little 

 broader than the prothorax, the eyes extremely large, separated by less than 

 half their own width ; antennae slender, reaching the base of the prothorax, 

 joints 4-10 sub-triangular, longer than bi-oad, 4 much longer than 3. Prothorax 

 as long as broad, sub-cylindrical, feebly rounded at the sides anteriorly, the 

 basal groove well defined, the disc depressed in the middle behind. Elytra 

 moderately elongate, at the base about as broad as the head (with the eyes), 

 somewhat convex, very gradually widened to the middle, obsoletely lineate 

 beneath the surface, the suture with an oblong, slightly tumid streak before the 

 tip. Beneath closely, finely punctate. Legs slender, moderately long. 

 Length 5 J, breadth 1^ mm. 



Hab.: Amazons, Villa Nova (H. W. Bates). 



One specimen, purchased in 1865. A small, narrow, pallid form, 

 with the antennae testaceous and more slender than in C. flavicornis 



