428 RHYNCHOPHORA. 
along the humeri and the mesothoracic episterna, the femora obsoletely biannulate, the elytra also with 
fine, scattered, decumbent, whitish sete. Head densely, rugulosely punctate; rostrum moderately stout, 
arcuate, a little longer than the head and prothorax, rugulosely punctate and 5-carinate, the median 
carina widening out anteriorly, the apex very sparsely punctate, smoother from the middle onwards in 
the 2, the antenne inserted towards the tip, joints 1 and 2 of the funiculus subequal in length. 
Prothorax convex, broader than long, rounded at the sides anteriorly, narrowed and slightly constricted 
in front, the base moderately bisinuate ; densely, rugosely punctate, the narrowly raised interspaces more 
or less crescentiform, the disc feebly carinate anteriorly. Llytra somewhat triangular, widest a little 
below the base, the humeri obliquely truncated in front; coarsely seriate-punctate, the interstices 
rugulose, 3, 5, 7, and 9 costate throughout, the ridge on 3 slightly depressed below the base. Meso- 
and metasternum slightly depressed down the middle. Ventral segments very sparsely punctate, 
5 bisinuato-truncate in the ¢, the pygidium exposed and becoming ventral in this sex. Legs stout; 
femora clavate, unidentate; tarsal claws with the inner tooth nearly as long as the claw itself. 
Length 51-53, breadth 3-33 millim. (d 2.) 
Hab. Panama, Bugaba, Tolé (Champion). 
Two females and one male. A robust species, with a broad space at the sides of 
the prothorax, the humeri in front, and the mesothoracic episterna ochreous or white, 
the alternate elytral interstices carinate throughout, the meso- and metasternum 
shallowly grooved down the middle, the pygidium exposed in the male. C. validus is 
a nearly allied form. 
157. Conotrachelus longidens, sp. n. (Tab. XXI. figg. 14, 14a; 148, 
anterior leg.) 
Ovate, rather dull, piceous, the legs in part and the antenne reddish; the vestiture moderately close above, 
very sparse beneath, fine, ferruginous, the head with a large dense white patch in front, the elytra slightly 
mottled with white, the femora incompletely annulate, the anterior pair with a fulvous line at the base 
above; the upper surface also set with short, fine, scattered, decumbent seta, the legs setulose. Head 
densely punctate, the front transversely depressed and with two minute bare prominences ; rostrum very 
stout, arcuate, about as long as the head and prothorax, shining, with two sinuous carine on each side, 
the inner two joining the very short median carina at the base, the apex somewhat closely punctate, the 
antenne inserted towards the tip, joint 2 of the funiculus longer than 1. Prothorax transverse, rounded 
at the sides, abruptly narrowed and constricted in front, emarginate at the apex, deeply sinuate at the 
base; densely, rugulosely punctate, and sparsely subgranulate, the disc with four smooth larger 
prominences about the middle, and also carinate from the apex to near the base. Elytra about one-third 
wider than the prothorax, rapidly narrowing from the basal fourth, deeply sinuate in front, the humeri 
rounded; seriate-punctate, the interstices very sparsely and feebly seriato-granulate, 3, 5, 7, and 9 
sharply, uninterruptedly costate. Mesosternum concave, smooth, protuberant on each side in front. 
Metasternum depressed down the middle. Ventral segments finely punctate. Legs rugose; femora 
clavate, the anterior pair with a very long narrow tooth, the others with an acute triangular tooth ; 
anterior tibie strongly, and the others feebly, sinuate within ; tarsal claws with a moderately long 
tooth. 
Length 43-6, breadth 23-3 millim. (¢ 2 ?) 
Hab. Guatema.a, Sinanja in Vera Paz (Champion) ; Panama, Bugaba (Champion). 
Two specimens. ‘The very long narrow tooth on the anterior femora distinguishes 
C. longidens at a glance from all the other Conotracheli here described. 
