422 RHYNCHOPHORA. 
rugulose, unicarinate at the base, sparsely punctate and bare at the tip, joint 2 of the funiculus shorter 
than 1. Prothorax transverse, dentate at the sides before the middle, abruptly narrowed and constricted 
in front, and slightly narrowing behind, the base feebly sinuate; coarsely, irregularly punctate, with two 
prominent tubercles a little before the middle of the disc and two others at the apex. Elytra rather 
short, subtriangular, with broad, obliquely truncated, angularly projecting humeri, and the sides slightly 
dilated below the base; seriate-punctate, the interstices 3,5, 7, and 9 strongly costate, the ridge on 
3 and 5 abruptly twice or thrice interrupted, the elevations becoming short and subconical towards the 
base. Mesosternum conically protuberant in front. Ventral segments shining, very coarsely punctate. 
Femora strongly clavate, each with a triangular tooth and a small prominence placed at some distance 
exterior to it. Posterior tibie slightly hollowed at the apex within, and also strongly unguiculate, in 
the d. Tarsal claws with a short tooth. 
Length 42-5, breadth 22-3 millim. (¢ 9.) 
Hab. Mexico, Vera Cruz (Sallé), Teapa (H. H. Smith); Panama, Bugaba, Volcan 
de Chiriqui (Champion). 
Five specimens. The quadri-tuberculate prothorax, the angularly projecting, 
broadly truncated humeri, the short, subconical prominences at the base of the elytra, 
the short setosity, the conically protuberant mesosternum, &c., distinguish C. ¢uber- 
culatus from most of its allies. The rostrum is very similarly formed in the two 
SEXES. 
146. Conotrachelus quadrilineatus, sp.n. (Tab. XXI. figg. 8, 8a, 2.) 
Broad-ovate, shining, rufo-piceous, darker beneath, the antenne and tarsi, and the tibie in great part, 
ferruginous ; the vestiture fine, rather close, ochreous, intermixed with white, somewhat fasciculate on 
the elytra, the prothorax with two narrow, curved, whitish lines on the disc and another on each side, 
these extending on to the extreme base of the elytra, the latter with a dense, angulate, ochreous fascia at 
the apex, the clothing of the under surface very sparse and whitish, the femora biannulate. Head 
densely punctate; rostrum very stout, slightly longer than the head and prothorax, curved, rugulose and 
sharply unicarinate, sparsely punctate at the tip, the antenne inserted towards the apex. Prothorax 
transverse, compressed and narrowed in front, moderately bisinuate at the base; densely, finely punctate 
and sharply carinate. Elytra broadly subtriangular, sinuate in front, compressed beneath the humeri, 
which are obliquely truncated and somewhat dentiform, the sides feebly dentate below the base beneath ; 
coarsely seriate-punctate, the interstices densely rugulose, 3, 5, 7, and 9 strongly and very sharply 
costate, the ridge on 3 and 5 abruptly twice interrupted, the elevations on 3 large, swollen, and 
lamelliform. Mesosternum flattened between the coxe, conically protuberant in front. Ventral 
segments sparsely punctate. Femora clavate, each with a triangular tooth, the anterior pair also with a 
small prominence exterior to it. Tarsal claws with a stout tooth. 
Length 33, breadth 2 millim. (@.) 
Hab. Panama, Bugaba (Champion). 
One specimen. Not unlike C. dentiferus, but much smaller, the prothorax sharply 
carinate and with four longitudinal whitish lines, the elytra shorter, and with the 
elevations on the disc still more prominent, the rostrum shorter, the anterior femora 
only with a small prominence exterior to the main tooth, the mesosternum conically 
-protuberant in front. ‘The last-mentioned character separates it from C. venustus and 
C. albolineatus, both of which are very similar in colour and sculpture. 
