376 RHYNCHOPHORA. 
segments very sparsely, finely punctate. Femora clavate, each with an acute triangular tooth and a 
minute tooth placed at some distance exterior to it. Tarsal claws with a moderately long tooth. 
Length 43, breadth 23 millim. ( 2.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. Near C. cristatus, Fahr., but with the almost bare space at the apex 
of each elytron smaller, the vestiture ochreous and condensed into a broad, curved, 
subapical fascia, as well as into an oblique line on the humeri and on each side of the 
prothorax, the rostrum ( ¢ ) straighter and much more elongate, the antenne inserted 
near the middle, &c. C. rufirostris, Fahr., is another allied. form. 
63. Conotrachelus dentiferus. (Tab. XIX. fige.11,1la, 2.) 
Conotrachelus dentiferus, Fahr. in Schénh. Gen. Cure. iv. p. 143°. 
Conotrachelus frater, Faust, in litt.’. 
Hab. Mexico! (ex coll. Sturm; Flohr; Koltze, in Mus. Dresden), Toxpam (Sallé), 
Jalapa (Hoge); Panama, Bugaba, David, Volcan de Chiriqui, Boquete, Caldera (Cham- 
pion).— VENEZUELA (Mus. Brit.). 
A common species on the slopes of the Volcan de Chiriqui, and not rare in the 
Mexican State of Vera Cruz. In this insect the vestiture is close, brownish, or grey, 
without intermixed sete, the elytra slightly mottled with darker brown, the prothorax 
with a faint median line, a curved, sinuous line on each side of the disc, and a broad 
oblique band on the flanks, whitish. The rostrum is moderately long in both sexes, 
rugulose and tricarinate. The prothorax is transverse, constricted in front, densely 
rugulose, without carina or tubercles. The elytra are constricted and angularly dilated 
below the shoulders, with the alternate interstices costate, the two inner ridges 
abruptly twice interrupted. The mesosternum is flattened between the coxe. The 
tarsal claws have a long tooth. The femora are unidentate. Our specimens vary 
from 4—5% millim. in length. 
64. Conotrachelus venustus, sp. n. (Tab. XIX. figg. 12, 12a, 2.) 
Subovate, shining, black, the antenna, the tip of the rostrum, the apices of the tibiee, and the tarsi ferruginous, 
and the elytra slightly mottled with the same colour; the vestiture fine, ochreous, intermixed with white, 
close on the rostrum, prothorax, and base of the elytra, and sparse elsewhere, the whitish scales on the 
prothorax condensed into two parallel curved lines on each side of the disc, these lines extending on to 
the extreme base of the elytra, the latter also with some dense irregular markings at the apex, and the rest 
of the clothing somewhat fasciculate, the femora biannulate with white. Head densely punctate ; rostrum 
very stout, curved, a little longer than the prothorax, rugulose and sharply unicarinate, bare and 
sparsely punctate at the tip, the antenne inserted near the apex, joint 2 of the funiculus slightly shorter 
than 1. Prothorax a little broader than long, rounded at the sides anteriorly, narrowed and compressed 
in front, deeply bisinuate at the base; densely, finely punctate, sharply carinate almost to the base, the 
disc with two minute prominences about the middle. Elytra subtriangular, deeply sinuate at the base, 
compressed and slightly dilated beneath the humeri and narrowing thence to the apex, the humeri 
obliquely truncated and rather prominent ; coarsely seriate-punctate, the punctures deep and subquadrate, 
the interstices rugulose, 3, 5, 7, and 9 strongly and very sharply costate, the ridges on 3 and 5 abruptly 
