460 RHYNCHOPHORA. 
We possess nine specimens of this species. The elytral sculpture is variable, 
the alternate interstices being sometimes raised, or the whole of them granulate. 
The male has the fifth ventral segment depressed or feebly emarginate in the 
centre at the apex, and a small tumid space on each side of this clothed with 
erect fulvous hairs. 
2. Thrasyomus uniformis, sp.n. (Tab. XXII. figg. 19, 19 @, 4, 2.) 
Rhomboidal, shining, black, thickly clothed above and beneath with rather coarse, fulvous or brownish 
scales. Head densely, rugulosely punctate, the eyes large and rather narrowly separated; rostrum ( ¢) 
moderately stout, feebly curved, reaching to a little beyond the intermediate coxe, rugulosely punctate 
and carinate in its basal third, and sparsely punctate thence to the tip, (Q ) not so stout, longer, and 
straighter, almost reaching the apex of the metasternum, sparsely punctate at the base and almost 
smooth thence to the tip, the antennz in the ¢ inserted at about one-third and in the 9 at one-fifth 
from the base, joints 1 and 2 of the funiculus subequal in length. Prothorax transverse, conical, densely, 
finely punctate, sharply carinate down the middle. Elytra subtriangular, much wider than the prothorax, 
transversely convex, the humeri rounded; seriate-punctate, the interstices very finely rugulosely punctate, 
3, 5, 7, and 9 narrowly costate. Beneath closely punctate. Rostral canal in the ¢ impinging on the 
front of the metasternum and in the 2 nearly reaching its apex. First and fifth ventral segments in 
the $ with a broad space down the middle densely clothed with fulvous hairs. Femora dentate. 
Length 8-84, breadth 43-5 millim. (do 2.) 
Hab. Panama, Bugaba (Champion). 
One pair. There are one or two allied unnamed S.-American forms in the British 
Museum. 
3. Thrasyomus conotracheloides, sp.n. (Tab. XXII. figg. 20, 20a, 9.) 
Elongate-rhomboidal, shining, black, the raised coste of the elytra, the tip of the rostrum, the antennex, and 
the metasternum, ferruginous or obscure ferruginous; thickly clothed with intermixed fulvous and white 
scales, the latter clustered into small spots on the upper surface and legs, and also set with short, 
scattered, semierect, blunt scales. Head densely, rugulosely punctate, the eyes very large and rather 
narrowly separated; rostrum reaching almost to the middle of the metasternum, the basal portion 
striate-punctate at the sides, the apical half smooth, the antenne inserted about midway, joints 1 and 2 
of the funiculus equal in length. Prothorax transverse, abruptly narrowed and feebly constricted in 
front, the sides parallel behind; densely punctate, and also carinate, Elytra much wider than the 
prothorax, elongate-triangular, the humeri rounded; seriate-punctate, the rows of punctures sinuous on 
the disc, the interstices 3, 5, and 7 sharply sinuato-costate, the ridge on 8 abraptly twice interrupted 
and the second and third elevations very prominent and lamelliform, the latter truncate behind, 8 and 9 
also costate at the base and the suture raised throughout. Beneath coarsely, closely punctate. Rostral 
canal reaching to near the middle of the metasternum, the walls raised throughout. Legs elongate, the 
femora sharply dentate. 
Length 10, breadth 41 millim. (9@.) 
Hab. Panama, Volcan de Chiriqui 5000 feet (Champion). . 
A remarkable insect, superficially resembling a large Conotrachelus, with the 
elevations on the third elytral interstice very prominent and lamelliform. One 
specimen. It is not unlike Cryptorhynchus turpiculus, Boh., from Brazil, but has a 
much more elongate rostrum, &c. 
