438 RHYNCHOPHORA. 
176. Conotrachelus cucullatus, sp. n. 
Subovate, moderately shining, black, the elytra rufo-piceous, the legs mottled with the same colour, the 
antennee and the tip of the rostrum also reddish ; the vestiture close above, very sparse beneath, brown, 
becoming whitish or yellowish on the prothorax (a space on the disc of the latter behind being more 
sparsely clothed) and on the shoulders of the elytra, the alternate interstices of the latter also slightly 
mottled with whitish, the femora faintly annulate, the anterior pair with a fulvous line along their basal 
half above. Head densely, rugulosely punctate, transversely depressed in front; rostrum moderately 
stout, curved, considerably longer than the head and prothorax, seriate-punctate and tricarinate, sparsely 
punctured at the tip, the antenne inserted at about one-third from the apex, joint 2 of the funiculus 
slightly shorter than 1. Prothorax transverse, subconical, moderately constricted in front, feebly 
pisinuate at the base; densely, finely punctate, and sharply carinate down the anterior half. Elytra 
comparatively short, subtriangular, less than twice the width of the prothorax, flattened on the disc 
anteriorly, the humeri rounded ; coarsely seriate-punctate, the interstices rugulose, 3, 5, 7, and 9 costate, 
the ridge on 3 and 5 interrupted below the base in one specimen. Rostral canal broad and deep, 
reaching the apex of the metasternum. Ventral segments 2-5 very sparsely and finely, and 1 coarsely, 
punctate. Femora clavate, acutely unidentate. Tarsal claws with a moderately long tooth. 
Length 4-43, breadth 23-23 millim. (d¢ ?) 
Hiab. Panama, Volcan de Chiriqui (Champion). 
Two specimens. This insect somewhat resembles C. validus and C. lateralis, but it 
is very much smaller and less robust, and has the meso- and metasternum deeply 
excavate down the middle. 
177. Conotrachelus insignis, sp. n. 
Subovate, rather dull, black, the elytra and legs mottled with rufo-piceous, the tip of the rostrum, the 
antenne, and the apices of the tarsi reddish ; the vestiture rather coarse, close, ferruginous, very slightly 
intermixed with whitish on the elytra, that of the prothorax sparser and condensed into patches on 
each side of the middle of the disc, the femora annulate. Head densely punctate, except along 
the sharply-defined, rather broad, smooth space bordering the eyes above, transversely depressed in front ; 
rostrum about as long as the head and prothorax, curved, moderately stout, slightly thickened towards 
the base, tricarinate, sparsely punctate beyond the middle, the antenne inserted at about one-third from 
the tip, joints 1 and 2 of the funiculus subequal in length. Prothorax transverse, constricted and 
narrowed in front, moderately bisinuate at the base; densely, rugulosely punctate, the disc obsoletely 
binodose at about the middle. Elytra somewhat triangular, nearly twice as wide as the prothorax, the 
humeri rounded ; coarsely seriate-punctate, the interstices closely rugulose, 3, 5, 7, and 9 sharply costate, 
the ridge on 3 interrupted below the base. Rostral canal rather deep and broad, smooth, reaching to 
about the middle of the metasternum. Ventral segments sparsely punctate. Legs stout and rugose ; 
_ femora strongly clavate, unidentate ; tarsal claws with a very short tooth. 
Length 44, breadth 23 millim. (d ?) 
Hab. Guatemaua, Las Mercedes, Pacific slope (Champion). 
One specimen. Very near C. angusticollis, but with a sharply-defined, smooth, bare 
space on either side of the head above the eyes (which, at first sight, appear to be 
unusually large)—a character not observed by me in any other species of the genus. 
178. Conotrachelus angusticollis, sp. n. 
Very like C. insignis, but with the whole of the front of the head densely punctate; the rostrum rugulose and 
finely tricarinate in the ¢, smoother in the 9, the antennee inserted near the middle in the 2 and at 
about one-third from the apex in the ¢; the prothorax usually distinctly binodose at the middle of the 
