606 RHYNCHOPHORA. 
MANTIAS, gen. nov. 
Rostrum rather slender, strongly curved, moderately long, the scrobes shallow, lateral; antenne inserted near 
the base of the rostrum, the scape clavate and extending beyond the lower limit of the eye, the funiculus 
7-jointed—1 clavate, 2-7 slender, 2 longer than 1, 3 one-half the length of 2, 4-7 short,—the club 
elongate-ovate, acuminate, indistinctly annulate; mandibles bifid; head convex ; eyes very large, in 
great part exposed, narrowly separated; prothorax transverse, bisinuate at the base, with feebly- 
developed, angulate, ocular lobes ; scutellum small, oblong; elytra wider than the prothorax, elongate, 
with ten rows of punctures ; rostral canal deep, reaching the front of the metasternum, parallel between 
the intermediate coxe; metasternum long, and with broad episterna; ventral segment 2 (along the 
median line) nearly as long as 3 and 4 united, the first suture arched; legs long and slender, the femora 
unidentate, the posterior pair reaching the apex of the elytra; tibia almost straight ; tarsi narrow, 
joint 3 short, cleft to the base, 1 longer than 2 and 3 united, the claws simple; body narrow, elongate- 
ovate, squamose, the antennal club clothed with long; fine, projecting hairs. 
This genus includes a single species from the State of Panama. Its chief characters 
are :—The shallow rostral scrobes, which are not quite long enough to. receive the 
scape of the antenne in repose, the latter clavate and extending beyond the lower 
limit of the eyes, the antenne themselves inserted near the base of the rostrum, with 
the first joint of the funiculus clavate, and the second slender and elongate; the long, 
slender tarsi, with short, narrow, deeply cleft third joint ; and the elongate, acuminate, 
hairy antennal club. 
1. Mantias gracilitarsis, sp.n. (Tab. XXIX. figg. 28, 284, 5.) 
Elongate-ovate, narrow, piceous or rufo-piceous, mottled with black, the antenna, and sometimes the tarsi 
also, ferruginous; variegated above with fulvous, white, and blackish scales, with intermixed short, 
decumbent, coarser, setiform scales, the white scales on the prothorax condensed into a short median 
line in front and a patch at each hind angle, and those on the elytra into a spot on the shoulder, an 
interrupted oblique streak on the disc before the middle, and two more or less distinct, common, curved 
fascie towards the apex ; the vestiture of the under surface pale, the legs variegated with whitish scales. 
Head rugulosely punctate; rostrum feebly carinate and rugulosely punctate at the base, and for the 
rest sparsely, very finely punctate. Prothorax broader than long, narrowed and feebly constricted in 
front ; densely, finely punctate. Elytra long, narrowing from about the middle, the humeri obtuse ; 
closely seriate-punctate, the interstices convex, rugulose. Beneath densely punctate. Femora sharply 
unidentate. 
Length 575-53, breadth 17-14 millim. (9?) 
Hab. Panama, Bugaba (Champion). 
Three specimens. A mutilated insect from Colombia in the British Museum may 
also belong to the same species. 
TRAEZZON, gen. nov. 
Rostrum nearly reaching the metasternum, slightly widened towards the tip, curved, moderately stout, the 
antenng inserted at the middle, with the funiculus 7-jointed and the club oblong-ovate, with transverse 
sutures; head not visible from above; eyes large, lateral, covered in repose ; prothorax broadly produced 
at the apex and with prominent ocular lobes, bisinuate at the base ; scutellum oblong, small, flattened ; 
elytra elongate, wider than the prothorax, depressed, broadly truncate at the apex, with nine rows 
of punctures and a short outer row at the base, the humeri obtuse; mesosternum U-shaped, horizontal ; 
metasternum moderately long, with rather broad episterna; ventral segment 2 much longer than 3, 
the first suture arched; legs short, very stout; femora much thickened, unidentate ; tibixe broad the 
