CONOTRACHELUS. 385 
78. Conotrachelus striatirostris, sp. n. 
Oblong-ovate, moderately shining, black, slightly mottled with rufo-piceous, the antenne and the tips of the 
tarsi ferruginous ; the vestiture fine, rather close, more condensed on the oblique post-median depressions 
of the elytra, fulvous or ochreous, slightly intermixed with white, the femora faintly biannulate with white, 
the anterior pair with a line of fulvous scales at the base above, the posterior pair with a fulvous patch 
at the apex in front. Head closely punctate, foveate and depressed between the eyes ; rostrum very 
stout, curved, about as long as the prothorax, 5-carinate, the apical portion in the ¢ thickly, and in 
the 2 sparsely, punctate, the antennw inserted towards the tip, joints 1 and 2 of the funiculus subequal 
in length. Prothorax slightly broader than long, subquadrate, abruptly narrowed in front, strongly 
bisinuate at the base, the sides crenulate; the surface uneven, rugulosely punctate, carinate down the 
anterior half, quadrituberculate on the middle of the disc. Elytra constricted beneath the humeri, deeply 
sinuate at the base, obliquely depressed below the middle; 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 coxe, obsoletely bitubereulate in front. Ventral 
segments very sparsely, finely punctate, 5 shallowly foveate on each side in the ¢. Femora unidentate, 
and with indications of a minute tooth or prominence at some distance exterior to it. Tarsal claws with 
a short tooth. 
Length 53-64, breadth 23-33 millim. (d @.) 
Hab. Guaremaua, Cerro Zunil, Duefias, Calderas (Champion). 
Hight specimens, all from the Pacific slope. Very like the Mexican C. corallinus, 
but with the rostrum 5-carinate, the prothorax subquadrate, the elytra obliquely 
depressed or flattened a little below the middle, the vestiture distributed over the 
whole surface, the femora unidentate, the rostram not gibbous in the male, nor 
the hind tibie excavate at the apex in this sex. 
79. Conotrachelus crenatus, sp. n. 
Oblong-ovate, dull, nigro-piceous or black, the antenne and the tarsi in part or entirely ferruginous ; the 
vestiture rather sparse, fulvous or ochreous, intermixed with whitish, somewhat fasciculate on the elytra, 
condensed into a patch on the humeri, a small spot at the hind angles of the prothorax, and an interrupted 
line or short oblique streak on each side of the disc of the latter, the femora each with a whitish annulus, 
the anterior pair with a fulvous streak along their basal half above. Head densely punctate, more or less 
foveate between the eyes; rostrum stout, curved, a little longer than the head and prothorax, rugulose 
and 5-carinate, thickly punctate at the tip, the antenn® inserted near the apex, joint 2 of the funiculus 
slightly shorter than 1. Prothorax strongly transverse, abruptly narrowed and constricted in front, the sides 
sinuate or crenate (in some specimens feebly bidentate), the base bisinuate ; densely, rugulosely punctate, 
more or less distinctly carinate, the disc feebly quadrituberculate. Elytra strongly constricted at the sides 
below the humeri, and narrowing from a little beyond this to the apex ; seriate-punctate, the interstices 
3,5, 7, and 9 sharply costate, the ridge on 3 and 5 once or twice, and that on 7 once, abruptly interrupted. 
Mesosternum flattened between the coxe, binodose in front. Ventral segments sparsely punctate. Femora 
each with a sharp triangular tooth, and a minute tooth placed at some distance exterior to it. Tarsal 
claws with a short tooth. 
Length 4-5, breadth 2-23 millim. (6d 2.) 
Hab. Guatema.a, Duefias, Capetillo, Zapote (Champion) ; Panama, Volcan de Chiriqui 
(Champion). 
Nine specimens. ‘This insect may be described as a form of C. sinuaticollis with the 
prothorax more transverse, less coarsely punctate, and feebly quadrituberculate on 
the disc, and the small tooth on the anterior femora placed at some distance from the 
BIOL. CENTR. AMER., Coleopt., Vol. IV. Pt. 4, September 1904. 3 DD 
