362 RHYNCHOPHORA. 
hollowed and bituberculate in front. Ventral segments almost smooth. Legs elongate; femora clavate, 
unidentate ; tarsal claws with a short tooth. 
Var.? The prothorax with a faint interrupted line on each side of the disc, and the elytra with a small patch 
at the base of the third interstice and another on the humeri in front, clothed with ochreous scales. 
Length 53-73, breadth 27-32 millim. (3 2.) 
Hab. Guaremata, San Joaquin, San Gerénimo (Champion); Nicaragua, Chontales 
(Belt); Panama, Bugaba, Volcan de Chiriqui (Champion). 
Found in abundance in Chiriqui. ‘The variety (?) is represented by four specimens 
{rom the more northern localities. This species approaches C. inexplicatus, but it is 
smaller, more coarsely punctured above, and wants the large dense patches of ochreous 
scales on the prothorax and elytra, &c. ‘The short tooth of the tarsal claws, the 
smaller femoral tooth, the sparse vestiture, &c., separate it from C. rectirostris and 
others. ©. rugicollis, Boh., from Antioquia, is also an ally of C. cribratus, but it has 
a still more coarsely punctured prothorax and more sharply costate elytra. 
37. Conotrachelus impressicollis, sp. n. 
Subovate, moderately shining, black or nigro-piceous, the antenne and the tips of the tarsi obscure ferruginous ; 
the vestiture scattered, long, and rather coarse, fulvous and white intermixed, the whito scales tending to 
form two incomplete rings on each of the femora, the anterior femora with a rather broad line of fulvous 
scales extending along their basal third above. Head closely punctate, foveate between the eyes; 
rostrum (¢) stout, moderately curved, slightly longer than the head and prothorax, 5-carinate, thickly 
punctate at the tip, (2) longer, straighter, less curved, and much smoother, the antenne inserted at 
about one-fourth from the apex in the ¢, and at some distance before the middle in the Q, joints 1 and 2 
of the funiculus equal in length. Prothorax broader than long, abruptly narrowed and constricted in 
front, strongly bisinuate at the base; coarsely, irregularly, rugosely punctate, incompletely carinate 
down the middle, and with a U-shaped depression on the disc, the partially enclosed space appearing 
swollen and sometimes nodose. Elytra strongly sinuate at the base, narrowing from a little below the 
humeri to the apex; coarsely seriate-punctate, the interstices rugulose, 3, 5, 7, and 9 sharply costate, 
the ridge on 3 and 5 twice, and that on 7 once, abruptly interrupted. Mesosternum flattened between the 
coxee, protuberant and bituberculate in front. Ventral segments shining, very sparsely, finely punctate. 
Femora each with a sharp triangular tooth and a minute tooth placed at some distance exterior to it. 
Tarsal claws with a long tooth. 
Length 43-7, breadth 24-34 millim. (¢ @.) 
Hab. Mexico, San Juan Bautista in Tabasco (Hoge); GuatuMaLa, Cubilguitz in Vera 
Paz (Champion); Nicaracua, Chontales (Belt); Panama, Bugaba (Champion). 
Nine specimens. ‘The rather coarse, intermixed fulvous and white vestiture, the 
conspicuous line of fulvous scales at the base of the anterior femora, the rugosely 
punctured, carinate prothorax, with a U-shaped depression on the disc, the bidentate 
femora, &c., separate C. impressicollis from the various other similar forms. 
38. Conotrachelus brevirostris, sp.n. (Tab. XIX. figg.1, 1a, 3; 14, inter- 
mediate tibia.) 
Oblong-ovate, rather narrow, moderately shining, nigro-piceous, the upper surface rufo-piceous with darker 
markings, the rostrum, antennew, and legs ferruginous; the vestiture rather close, fulvous and white 
