68 TBAVELi< AMONGST THE GBEAT ANDES. 



its head, the remarkal^ly narrow protliorax and its comparatively smooth and 

 highly polished iipper surface. N. gibhicollin, Boheni., from Brazil, is black 

 and highly polisheil, hut has little in comiiinii witli the insect characterised 

 above. 



15. AmpMderitJis brcris, sp. n. 



Hah. Ecuador (no exact locality noted).i 



Elongate-ovate, rather short, moderately convex, Idack, shining, sparingly 

 covered with greyish white pubescence. Head finely punctured and pubes- 

 cent ; rostrum obli(|uely rugulose, with a moderately strong longitudinal 

 impression extending from l^etween the eyes to just beliind the apex. 

 Antennfe dark ferruginous, the club i)aler and closely covered with grey 

 pubescence. Prothorax transverse, at its greatest width just liehind the 

 middle, rather narrower in front than behind, con^'ex, stronglj^ and rather 

 closely punctured mi the disc, near the sides somewhat more closely and 

 less strongly punctured ; without median line ; the sides strongly arcuate. 

 Scutellum very small, shining and impunctate. Elytra about twice as 

 long as the head and prothorax together, strongly striate-punctate, clothed 

 witli fine brownish -white pultescence especially near the apex, the interstices 

 moderately broad and smo(jth ; shoulders not prominent ; sides arcuately 

 narrowed to the apex. Underside lilack, shining ; the sterna finely and not 

 very closely punctureil ; the first two abdominal segments more finely 

 punctured, the others almost impunctate, shining and very sparingly 

 pubescent. Legs finely pubescent ; femora blaclc ; til>iie and tarsi dark 

 ferruginoiTS. Length, 7^- mm. 



Allied to Amphiderifus rilis, Bohem., from Cidomliia, but is easily 

 separated by its shorter and broader form, more strongly punctured prothorax, 

 and the more strongly ])un(tured strire and less closely pubescent surface of 

 the elytra. 



16. A. pugmwits, sp. n. 



Hah. Chimbora/.o (12-13,000 feet). 



Elongate, rather convex, Ijlack, shining, sparingly and very finely pubes- 

 cent. Head \ev\ finely punctured ; rostrum finely rugulose, with a rather 

 deeply impressed line extending from between the eyes to just liefore the 

 apex. Protliorax very finely and sparingly punctured on the disc, tlie sides 

 rather more strongly and much more closely punctured. Elytra punctured 

 in rows, the ]mnctures distinct near the ba.se, gradually obliterated towards 

 the a]>ex, the interstices liroad, flat and impunctate. Underside black, finely 



' Tlie locality was lost by the setter. — A'. //'. 



