344 RHYNCHOPHORA. 
9. Conotrachelus inzquidens, sp.n. (Tab. XVIII. figg. 2, 2a, 3.) 
Oblong-ovate, slightly shining, nigro-piceous or black, the tarsi and rostrum reddish ; the vestiture coarse and 
rather close, mostly ferruginous in colour, with a little white intermixed, the white scales on the elytra 
condensed into a common, transverse, outwardly widened patch towards the apex and various irregular 
markings on the disc and at the tip. Head densely punctate; rostrum (d) comparatively slender, about 
twice as long as the prothorax, moderately curved, feebly 5-carinate, sparsely punctured at the tip, 
(2) more slender, smoother, and straighter, the antenne inserted at one-third from the apex in the g, 
and at the middle in the 9, joints 1 and 2 of the funiculus elongate, subequal. Prothorax much 
broader than long, laterally compressed and much narrowed in front, strongly bisinuate at the base ; 
densely, rather finely punctate, and sometimes with indications of an abbreviated median carina. Elytra 
compressed at the sides below the rounded humeri, narrowing from about the basal third; coarsely 
seriate-punctate, the interstices rugulose, 3, 5, 7, and 9 uninterruptedly undulato-costate, 10 with a short 
acute ridge at the base. Mesosternum flattened between the coxe, vertical in front. Metasternum with 
an angular prominence on each side in front of the posterior coxe. Ventral segments shining, very 
sparsely, minutely punctate. Femora clavate, each with a large, acute, triangular tooth, that on the 
anterior pair with one, that on the intermediate pair with one or two, and that on the posterior pair 
with three, additional teeth on its outer edge. Tibie strongly sinuate. Tarsal claws with a long tooth. 
Length 53-52, breadth 25-3 millim. (¢ 2.) 
Hab. Mexico, Jalapa (Hoge). 
Three specimens, differing from C. guadridens in the uninterrupted dorsal coste of 
the elytra, the smaller subapical white patch, the more coarsely and densely punctured 
prothorax, and the absence of the white ring on the femora, the anterior pair of 
which have one small exterior tooth only. 
3. Conotrachelus tridens, sp.n. (Tab. XVIII. figg. 8, ¢; 3, posterior femur.) 
Oblong-ovate, slightly shining, piceous, rufo-piceous, or ferruginous, mottled with black, the antenne, rostrum, 
and legs more or less ferruginous, the femora annulate with black; the vestiture fine, sparse, ochreous 
or greyish, the ochreous scales condensed at the hind angles of the prothorax, at the base of the third 
elytral interstice, and on the humeri in front. Head densely punctate; rostrum stout, strongly curved, 
tapering towards the apex, a little longer than the head and prothorax, sharply 5-carinate in both sexes, 
closely punctured at the tip, the antenne in the ¢ inserted at about one-fourth, and in the 2 at 
one-third, from the apex, the apical portion smoother in the 2, joints 1 and 2 of the funiculus subequal 
in length. Prothorax broader than long, narrowed and constricted in front, strongly bisinuate at the 
base ; coarsely, rugosely punctate. Elytra compressed and subangularly dilated at the sides below the 
humeri, the sides rounded and converging from about the basal third to the apex; coarsely seriate- 
punctate, the interstices rugulose, 3, 5, 7, and 9 costate, the ridge on 3 and 5 twice, and that on 7 once, 
abruptly interrupted. Mesosternum flattened between the coxw, bituberculate in front. Ventral 
segments shining, sparsely, finely punctate. Femora clavate, the anterior and intermediate pairs 
bidentate, and the posterior pair tridentate, the inner tooth on each acute and prominent. Tarsal claws 
with a long tooth. 
Length 44-6, breadth 21-3 millim. (¢ 9.) 
Hab. GuaTEeMALA, Senahu in Vera Paz (Champion); Panama, Volcan de Chiriqui 
(Champion). 
Found in numbers in Chiriqui, singly in Guatemala. Easily recognizable from its 
numerous very similar allies by the femoral armature. In some specimens there is a 
faint ochreous ring on the femora and a minute similarly-coloured spot at the apex of 
the elytra. 
