CONOTRACHELUS. 421 
apex; and the inflexed sides are usually armed with a small conical prominence a 
little below the base. The mesosternum is protuberant in the middle in front. The 
rostrum is rugulose and 6-carinate in both sexes. The posterior tibie of the male are 
excavate and ciliate at the apex within, and strongly, abruptly unguiculate. The 
tarsal claws have a short tooth. In worn or dirty examples the lines on the prothorax 
are obsolete. I have seen the type of C. rubiginosus. Found on hickory, in the fruit 
of which they deposit their eggs, according to Say. 
144. Conotrachelus insularis, sp.n. (Tab. XXI. fige. 6, 6a, 2.) 
Subovate, opaque, black, the elytra mottled with ferruginous along the anterior half of the disc and with a 
large, irregular, similarly-coloured patch on the apical declivity, the legs in part and the antenne also 
ferruginous; the vestiture very fine, fulvous on the head, the elevated portions of the prothorax, and 
the reddish portion of the elytra, the prothorax with a long, slender, somewhat X-shaped, white mark 
on each side, the elytra with a large pallid humeral patch connected inwards with the condensed oblique 
fulvous streak at the base of the third interstice, the rest of their clothing greyish, that of the legs fulvous 
intermixed with white, the femora biannulate; the upper surface also set with an abundant, semierect, 
long setosity, the legs setulose. Head rugulosely punctate; rostrum very stout, not longer than the 
prothorax, curved, rugulose throughout, 5-carinate, the antenne inserted near the tip, joint 2 of the 
funiculus much shorter than 1. Prothorax almost as long as broad, narrowed and slightly constricted in 
front, feebly bisinuate at the base; finely punctate, the disc with two very prominent, longitudinal, 
undulating carine extending along the anterior half of the disc. Elytra narrowing from about the 
basal third, flattened on the disc anteriorly, the sides with a conical tubercle below the base; seriate- 
punctate, the interstices alutaceous, 3, 5, 7, and 9 costate, the ridge on 3 interrupted beyond the middle 
and abruptly terminating at about the commencement of the apical declivity. Mesosternum flattened 
between the coxe, protuberant in the middle in front. Ventral segments rather closely, coarsely 
punctate. Femora clavate, each with a stout, acute tooth, the two hinder pairs also with a minute 
prominence exterior to it. Tarsal claws with a moderately long tooth. 
Length 32, breadth 2 millim. (9.) 
Hab. Panama, Taboga I. (Champion). 
One specimen, in very fresh condition. An insular form of C. anaglypticus, the 
upper surface with a long, abundant setosity, the elytra differently coloured and with 
the interrupted ridge on the third interstice abruptly terminating some distance before 
the apex, the two carine on the prothorax still more prominent. 
145. Conotrachelus tuberculatus, sp. n. (Tab. XXI. fige. 7, 7a; 7 5, hind 
leg, 3.) 
Subovate, moderately shining, black, the antenne and tarsi, and the apices of the tibia, more or less 
ferruginous, the base of the elytra sometimes reddish ; the vestiture very fine, widely scattered on parts 
of the surface and dense elsewhere, ochreous or white, dense on the head and rostrum, the prothorax 
with a network of narrow white or ochreous lines at the sides (the outer lines enclosing a triangular 
space), the elytra with a broad, dense, whitish-ochreous space at the base and a similarly-coloured, narrow, 
oblique fascia below it (neither reaching the suture), and a rather broad, common, transverse, dense 
white fascia at one-third from the apex, the femora biannulate with white; the upper surface and legs 
also with short, blunt, strong, scattered sete, which are clustered into fascicles on the dorsal prominences 
of the prothorax. Head densely, rugulosely punctate, transversely depressed, obsoletely carinate, and 
binodose in front; rostrum exceedingly stout, curved, very little longer than the prothorax, densely 
