568 RHYNCHOPHORA. 
5 and 7 also more or less interrupted. Mesosternum flattened between the coxse, protuberant and 
binodose in front. Ventral segments sparsely punctate. Femora strongly clavate, acutely unidentate. 
Anterior tibie sinuate within. Tarsal claws with a short tooth. 
Length 44, breadth 23 millim. (d.) 
Hab. Panama, Tolé (Champion). 
One specimen. A species with a short, stout, unicarinate rostrum, rather narrowly 
separated eyes, a short prothorax, with the disc obliquely depressed on each side 
anteriorly, and abruptly interrupted dorsal coste of the elytra. It is perhaps nearest 
allied to C. lineatipes. 
48. Conotrachelus rufitarsis, sp. n. 
Oblong-ovate, very shining, deep black, the antenne and tarsi ferruginous; the vestiture very sparse, fine, 
whitish, somewhat fasciculate on the elytra, condensed into a slightly curved yellowish line on each side 
of the disc of the prothorax, the femora faintly annulate. Head closely punctuate, transversely depressed 
between the eyes; rostrum very stout, arcuate, not longer than the head and prothorax, rugulosely 
punctate and feebly 5-carinate, sparsely punctate at the tip, the antenne inserted near the apex, joints 
1 and 2 of the funiculus subequal in length. Prothorax transverse, subquadrate, abruptly narrowed and 
feebly constricted in front, deeply bisinuate at the base, the sides crenulate; densely, rugulosely punctate, 
carinate anteriorly, the disc with two small tubercles about the middle. Elytra abruptly constricted 
beneath the humeri, and narrowing from a little beyond this to the apex; coarsely seriate-punctate, the 
interstices 38, 5, 7, and 9 very sharply costate, the ridge on % and 5 twice, and that on 7 once, abruptly 
interrupted. Mesosternum flattened between the cox, binodose in front. Ventral segments sparsely, 
finely punctate. Legs rather slender; femora clavate, each with an acute triangular tooth, the anterior 
and intermediate pairs also with a small tooth placed at some distance exterior to it; posterior tibie 
moderately sinuate within; tarsal claws with a short tooth. 
Length 43, breadth 22 millim. (<d.) 
Hab. Costa Rica, Irazu (Rogers). 
One specimen. ‘The shining black surface and very sparse vestiture, the clear 
ferruginous tarsi, the very abruptly interrupted dorsal coste of the elytra, &c., 
distinguish C. rufitarsis from C. multiguttatus, C. sinuaticollis, and others. 
49. Conotrachelus sinuaticollis, sp.n. (Tab. XIX. fig. 5, anterior femur.) . 
Oblong-ovate, moderately shining, varying in colour from black to rufo-piceous with darker markings (in one 
immature specimen entirely ferruginous) ; the vestiture very sparse, ochreous above and whitish on the 
legs and beneath, subfasciculate on the elytra, condensed into one or two minute spots on each side of 
the disc of the prothorax and another at each hind angle, and a small patch at the base of the third 
elytral interstice and another on the humeri in front, the femora each with a white annulus, the anterior 
pair with a line of fulvous scales at the base above. Head rugosely punctate, sometimes foveate between 
the eyes ; rostrum (3) stout, cylindrical, curved, slightly longer than the head and prothorax, 5-carinate, 
and thickly punctate at the tip, (@ ) a little more elongate and smoother, the antenne in the ¢ inserted 
at about one-fourth, and in the 9 at one-third, from the apex, joint 2 of the funiculus rather shorter 
than 1. Prothorax broader than long, abruptly narrowed and constricted in front, the sides crenate or 
sinuate, and often angulate anteriorly, the base strongly bisinuate; coarsely, rugosely punctate, and 
usually carinate anteriorly. Elytra constricted at the sides below the humeri, and narrowing from a 
little beyond this to the apex, the base sinuate ; coarsely seriate-punctate, the interstices feebly granulate 
anteriorly, 3, 5, 7, and 9 costate, the ridge on 8 and 5 twice, and that on 7 once, abruptly interrupted. 
Mesosternum flattened between the coxe, slightly hollowed and binodose in front. Ventral segments 
