4392 RHYNCHOPHORA. 
164. Conotrachelus guatemalensis, sp. n. 
Oblong-ovate, broad, moderately shining, nigro-piceous or black, the elytra and legs more or less mottled with 
rufo-piceous or ferruginous, the antenne ferruginous; the vestiture very fine, fulvous, rather close on 
the elytra, sparse on the prothorax, condensed into a faint oblique line on each side of the disc of the 
latter, a small patch on the front of the humeri, and an interrupted patch on the front of the head, the 
femora obsoletely annulate, the anterior pair with a fulvous line at the base above ; the upper surface and 
legs also set with very short, fine, semierect sete. Head rugulosely punctate, transversely depressed in 
front, shortly unicarinate ; rostrum (¢ ) moderately stout, arcuate, much longer than the head and pro- 
thorax, slightly widened at: the tip, 5-carinate, thickly punctate at the apex, (2 ) longer, the apical portion 
with scattered, oblong, rather coarse punctures, the antenne inserted at or near the middle in the g, and 
at about one-third from the tip in the 92, joints 1 and 2 of the funiculus subequal in length. Prothorax 
strongly transverse, much narrowed and feebly constricted in front, moderately sinuate at the base ; 
densely, rugulosely punctate, feebly carinate anteriorly. Elytra nearly twice as wide as the prothorax, 
subparallel in front, transversely depressed below the base ; seriate-punctate, the interstices finely rugulose, 
3, 5, 7, and 9 moderately, uninterruptedly costate. Meso- and metasternum slightly depressed down the 
middle. Ventral segments rather closely punctate. Femora clavate, sharply unidentate. Posterior 
tibiee dilated at the outer apical angle. Tarsal claws with a short tooth. 
Length 44-54, breadth 23-3 millim. (¢ 9.) 
Hab. Guatemata, Zapote, Duefias, San Gerénimo (Champion). 
Three specimens. Very like C. rugiventris, but with the rostrum of equal thickness 
in both sexes, the meso- and metasternum depressed down the middle. Thé elytra are 
not so rapidly narrowed from the base as in the more nearly allied C. paleatus. 
165. Conotrachelus subtilis. 
Conotrachelus subtilis, Fahr. in Schénh. Gen. Cure. iv. p. 404°. 
Hab. Mexico, Vera Cruz! (Sallé), Teapa (fH. H. Smith). 
Two specimens in our collection nearly agree with the somewhat immature type 
communicated by Dr. Sjostedt, of the Stockholm Museum. This species is recognizable 
by the fasciculate arrangement of the elytral vestiture, which is condensed into a 
conspicnous yellowish or rusty-red patch within the humeri, there being a similarly- 
coloured patch on the front of the head and a small spot at each hind angle of the 
prothorax ; the somewhat abundant, short setosity; the comparatively broad, coarsely, 
rugosely punctured, carinate prothorax, the base of which is feebly bisinuate; the 
almost uninterrupted elytral coste; the widely separated intermediate coxe; the 
slightly hollowed meso- and metasternum, the sides of the mesosternum not being 
at all protuberant in front; the coarsely, sparsely punctate abdomen, &c. The first 
and second joints of the funiculus are equal in length. 
166. Conotrachelus conicicollis, sp.n. (Tab. XXI. figg. 18, 18a, 2.) 
Oblong-ovate, robust, shining, nigro-piceous, the elytra, the legs in part, and the antenne rufo-piceous ; the 
vestiture rather long and close, ochreous, intermixed with cinereous (except on the head and front of the 
prothorax), the elytra mottled with that colour, the femora faintly annulate. Head densely, rugulosely 
punctate ; rostrum moderately stout, curved, nearly one-half longer than the prothorax, rugulose and 
feebly 5-carinate, the apical portion bare and sparsely punctate, the antenne inserted slightly beyond the 
