CONOTRACHELUS. S70 
condensed into an oblique line on each side of the disc. The minute outer femoral 
tooth is distinctly visible on all the legs. 
57. Conotrachelus bispinis, sp.n. (Tab. XIX. figg. 6, 6a; 60, ant. femur.) 
Subovate, dull, nigro-piceous or black, the antenne and the tips of the tarsi ferruginous ; the vestiture short, 
sparse, fine, mostly ochreous above and whitish on the legs and beneath, that on the prothorax condensed 
into an oblique vitta on each side of the disc, the elytra also with short scattered sete. Head closely, 
rugosely punctate, more or less foveate between the eyes; rostrum very stout, moderately curved, about 
as long as the head and prothorax, rugosely seriate-punctate and 5-carinate, sparsely punctured at the 
tip, the antenne inserted at about one-fourth from the apex, joints 1 and 2 of the funiculus equal in 
length. Prothorax transverse, narrowed and constricted in front, the sides parallel behind, the base 
bisinuate; densely, rugosely punctate. Elytra slightly constricted below the humeri, and narrowed 
thence to the apex; seriate-punctate, the interstices closely rugulose, dull, 3, 5, and 7 strongly, and 9 
more feebly, costate, the ridge on 3, 5, and 7 abruptly twice interrupted, the median portion of 3 very 
prominent. Mesosternum flattened between the coxe. Ventral segments shining, closely and rather 
coarsely punctate. Femora rugosely punctate, clavate, bidentate, the teeth widely separated, the outer 
one small but prominent. Tarsal claws with a long tooth. 
Length 43-5, breadth 24-23 millim. (¢.) 
Hab. Paxama, Bugaba, Volcan de Chiriqui (Champion). 
Five specimens, one of which may be a female, as it has the rostrum a little 
smoother and not quite so stout as in the others. ‘The dull surface, the condensed 
oblique ochreous vitta on each side of the disc of the prothorax (extending from 
opposite the eyes to the hind angles), the prominent median portion of the inner 
costa on the elytra, and the distinctly bidentate femora, are the chief characters 
of this species. 
58. Conotrachelus mixtus, sp.n. (Tab. XIX. fige.7, 74, ¢; 7b, intermediate 
leg, and 7 c, posterior leg, ¢ .) 
Subovate, shining, black or piceous, the elytra and legs sometimes variegated with ferruginous, the antenne 
entirely of that colour; the vestiture rather close, ochreous or fulvous, mottled with white, subfasciculate 
on the elytra, the latter with a dense ochreous patch on each shoulder and a similarly-coloured spot at 
the base of the third interstice, the white scales on the prothorax usually forming some irregular 
markings on each side of the disc and a minute spot at each hind angle, the femora biannulate with 
white or ochreous, the anterior pair with a short fulvous line at the base above. Head densely punctate, 
the eyes separated by about half the width of the rostrum; rostrum stout, arcuate, about as long as the 
head and prothorax, rugulose and tricarinate, thickly punctate at the tip, the antenne inserted near 
the apex in both sexes, joint 2 of the funiculus shorter than 1. Prothorax transverse, constricted and 
narrowed in front, and deeply bisinuate at the base; densely, rugulosely punctate, sometimes feebly 
carinate at the middle. Elytra subtriangular, less than twice the width of the prothorax, slightly 
dilated at the sides below the base, and narrowing thence to the apex, sinuate in front, the humeri 
rounded ; coarsely seriate-punctate, the interstices closely rugulose, 3, 5,7, and 9 sharply costate, the 
ridge on 3 twice, and that on 5 once or twice, abruptly interrupted. Mesosternum flattened between 
the coxe, somewhat protuberant and slightly hollowed in the middle in front. Ventral segments very 
sparsely, minutely punctate. Femora each with a triangular tooth and often a minute prominence at 
some distance exterior to it. Posterior tibiz of the ¢ gradually widening to about the middle and then 
abruptly hollowed and ciliate within to the apex. Tarsal claws with a moderately long tooth. 
Length 34-5, breadth 13-23 millim. (d 2.) 
Hab. Mexico, Rincon in Guerrero, Teapa (ZZ. H. Smith), Jalapa, Frontera, San Juan 
