326 Mr. F. P. Pascoe on the 
fulvo-squamosa in medio ornatis; antennis ferrugineis; scapo 
brevi; prothorace apice tubulato. Long. 23 lin. 
Hab. Parana. 
Subovate, smooth, shining black, in the middle of each 
elytron a round patch of fulvous scales; rostrum longer than 
the head and prothorax together, compressed at the base, 
strongly curved; scrobes beginning behind the middle, 
oblique, meeting beneath ; antenne ferruginous ; scape not 
nearly reaching the eye; funicle with the first joint as long 
as the next four together, the last two closely applied to the 
club ; prothorax slightly transverse, convex above, tubular at 
the apex, finely and sparingly punctured; scutellum sub- 
quadrate, expanded at the base; elytra subtriangular, 
shoulders not prominent, the base not much broader than 
the prothorax, finely striated, the interspaces flat and nearly 
impunctate; body beneath black, smooth, irregularly punc- 
tured; legs dark brown, with here and there a minute 
whitish setiform scale ; tibie straight; tarsi narrow, except 
the penultimate joint ; claw-joint elongate. 
Type of Dimesus. Scrobes oblique, meeting beneath the 
rostrum ; pectus elongate, canaliculate ; anterior coxe apart ; 
femora mutic; claws free; two basal segments of the abdo- 
men large, the suture obsolete. Differs from Rhianus (Cen- 
trinus mexicanus) in its shortly ovate facies and obsolete 
suture. The latter is a semiglobose form like C. tardigradus. 
Rhianus has the well-developed suture and semiglobose form. 
Centrinus palmaris. 
C. breviter ovalis, niger, prothorace utrinque apiceque ad latera 
miniato-squamoso; elytris triangularibus, striatis, interstitiis 
transyersim undulatis; tarsis anticis dilatatis, fimbriatis. Long. 
4 lin. 
Hab, Mexico. 
Shortly ovate, black, opaque, thinly covered with minute, 
ovate, whitish scales, the prothorax with a stripe of yellowish- 
red piliform scales on each side continued downwards at the 
apex ; rostrum much longer than the prothorax, slightly 
curved, compressed at the base; scrobes nearly median, 
oblique; antenne black; funicle elongate, first two joints 
longest, the third and fourth gradually shorter, the last three 
turbinate; club elliptic-oval ; prothorax moderately convex, 
the base broad and strongly bisinuate, the middle lobe trun- 
cate, a raised median line not extending to the base, and 
obliquely grooved on the sides; scutellum very short and 
very broad, glossy black ; elytra at the base broader than the 
