1917.] . 191 



Two specimens. Another example, from Santarera, reddish brown 

 in colour, with the intermediate and posterior femora infuscate in their 

 outer halves, and a series of small setigerous iinpressions along thii first 

 elyti'al interstice, may belong here. Very mucli smaller than D. ciste- 

 loicles and D. sitlcicollis, the eyes smaller and more distant, the antennae 

 feebly serrate, the prothorax and elytra shaped much as in D. (Barsenis) 

 fitlvipes I'asc, the eh'tra with setigerous impressions on the alternate 

 interstices. 



Mexiscophoeus Champ. 

 1. — Meniscopliorus opacipennis, n. sp. 



9 . Elong-ate, rather broad, parallel-sided, opaque above ; black, the bases 

 of ibe palpi, the bead (except bebiud the eyes), the prothorax (an oblique patch 

 on each side at the base excepted), the basal halves of the femora, the inter- 

 mediate and posterior tibiae to near the tip, and the tarsi in part, testaceous, 

 the humeri and iutiexed elytral margin obscurely rufescent ; the bead and 

 elytr.i with a few bristly hairs. Head alutaceous, obsoletely punctuLite, the 

 broad neck and the post-ocular portions coarselj' punctured, transversely 

 depressed and with conspicuous setigerous 'impressions between the eyes, the 

 latter moderately large and somewhat distant ; antennae thickened from joint 3 

 onward [5-11 missing]. Prothorax longer than broad, as wide as the head, 

 subcylindrical, feebly bisinuate at the sides, the basal margin moderately 

 thickened ; rather coarsely, closely punctate, the disc with two oblique 

 impressions towards the base. Elytra moderately elongate, flattened on the 

 disc, one-half wider than the prothorax, parallel, rounded at the tip; with 

 rows of closely placed transverse crenate punctures separated by narrower 

 subcostate interstices; the depressed opaque stigma small, greyish, oblong, 

 placed along the margin at about one-third from the tip. Legs slender, the 

 femora and tibiae smooth. 



Length 1\, breadth 2| mm. 



Hal). : Upper Amazons, San Paulo [de Ollvenca] (II. W. Bates). 



One specimen. A form of the Central American M. costaius, with 

 a more coai-sel}^ punctured prothorax, which is unimpressed on the disc 

 anteriorly and has the black lateral portion reduced to an oblique streak 

 at the base, the elytra almost wholly black. M. opacipennis can scarcely 

 be a colour- variety of M. amazoniciis Champ. ( S ), from the same localitj'", 

 the latter having large eyes, a narrower neck, and a narrower, less coarsely 

 punctate prothorax, the sexes of M. costaius not differing in this manner. 

 The apical joint of the labial palpi is crescentiform. 



2. — Meniscophorus sifjnifcr, n. sp. 



c? . Moderately elongate, narrow, depressed, somewhat shining; nigro- 

 piceous, the bases of the femora and the trochanters and coxae testaceous ; 

 almost glabrous (? abraded). Head large, sparsely minutely punctate, longi- 

 tudinall}- excavate in the middle between the eyes, the latter very large, 

 somewhat narrowly separated ; antennae rather slender, moderately long 



