324 RHYNCHOPHORA. 
flatter at the tip, the antennex inserted at about the basal third, the antennal club ovate. Prothorax 
transverse, rounded at the sides anteriorly, constricted and narrow in front ; densely, finely, confluently 
punctate. Elytra rounded-triangular, narrowly punctate-striate, the interstices roughly uniseriate- 
punctate. Beneath closely punctate. Prosternum slightly depressed along the middle. Anterior coxe 
separated by about their own width. 
Length 32-3}, breadth 12-14 millim. (2.) 
Hab. Mexico (Hoge, in coll. Solari); Panama, Volcan de Chiriqui (Champion). 
Two females. Not unlike C. setipennis, but with the rostrum longer and much 
more slender, the antenne inserted towards its base, and the elytra narrowly striate, 
with numerous, uniseriately-arranged intermixed fuscous and ochreous, setiform scales, 
the humeri less prominent. The elytra are more rounded at the sides than in 
C. dissipatus. 
7. Centrinites setipennis, sp. n. 
Elliptic, piceous, shining ; above sparsely clothed with rather coarse, pale ochreous, hair-like scales, those on 
the prothorax transversely arranged, and those on the elytra setiform, semierect, and placed in a regular 
line along each interstice ; the punctures of the under surface each bearing a minute hair-like scale, the 
legs also with fine hair-like scales. Head finely punctate, transversely grooved between the eyes; 
rostrum strongly arcuate, stout, as long as the head and prothorax, striate and coarsely punctate, slightly 
smoother in the 9, the antenne inserted at about the middle, the antennal club ovate. Prothorax 
transverse, strongly constricted in front, the sides gradually and arcuately converging from the base ; 
densely, finely, confluently punctate, and with indications of a raised median line, the narrow inter- 
spaces oblique and rugiform. Scutellum transverse, bare. Elytra punctato-sulcate, the interstices 
almost flat, the outer ones not wider than the sulci, each with a scattered row of fine setigerous 
punctures, the humeri rounded and not prominent. Beneath sparsely, finely punctate, the propleura 
obliquely strigose. Prosternum broadly, shallowly sulcate, the groove narrowing auteriorly and limited 
on each side by a distinct ridge. Anterior coxe separated by about their own width. Legs rather’ 
short; tibie strongly unguiculate. 
Length 3-33, breadth 14-1,8, millim. (¢ 2.) 
Hab. Panama, Bugaba (Champion). 
Numerous specimens, those with the rostrum a little smoother assumed to be 
females, no other sexual mark of distinction being apparent. ‘The rather coarse, 
yellowish, setiform scales on the elytra are arranged at regular intervals along each 
interstice from base to apex. An isolated form, not unlike Jdiostethus tubulatus 
(Lec.), and perhaps not really belonging here. 
CENTRINOIDES, gen. nov. 
Rostrum stout, arcuate; mandibles strongly decussate, asymmetrical, truncate anteriorly, the left mandible 
emarginate externally, the exposed portion of the right mandible small and angulate externally (fig. 5 6) ; 
antennal club short-ovate ; prothorax tubulate in front; scutellum transverse, free; elytra with oblique 
non-prominent humeri, leaving the upper portion of the mesothoracic epimera visible from above ; pygidium 
covered by the elytra ; prosternum strongly bispinose in the g; anterior coxe separated by about their 
own width; legs stout, rugose ; tibiew ridged externally ; tarsal claws approximate or subconnate at the 
base; body oblong-ovate, coarsely sculptured, with sparse hair-like vestiture. 
Type, C. ciliaris. 
This genus includes a single species from N.W. Mexico. It is nearly related to 
