394 RHYNCHOPHORA. 
each abruptly twice interrupted, the spaces between the elevations on 3 about equal in length, the median 
elevation large and lamelliform. Mesosternum flattened between the coxe. Ventral segments very 
sparsely, finely punctate, 5 foveate at the apex. Femora clavate, each with a short triangular tooth, 
and a minute prominence placed at some distance exterior to it. Tarsal claws with a short tooth. 
Length 44, breadth 23 millim. (¢.) 
Hab. Panama, David (Champion).—Cotomsia (Mus. Brit.). 
The subtriangular elytra, with dentiform humeri and prominent equidistant elevations 
on the third interstice, separate C. sextuberculatus from C. corallinus, C. discifer, &c. 
The description is taken from a single specimen from Chiriqui, agreeing with one from 
further south in the British Museum. C. clivosus, Faust, from Venezuela, is very like 
the present species, but has three almost equidistant tubercles placed in a longitudinal 
series on each side of the disc of the prothorax. 
95. Conotrachelus leucophwatus. (Tab. XX. figg. 5, 5a.) 
Conotrachelus leucopheatus, Fahr. in Schonh. Gen. Cure. iv. p. 417°; Lec. Proc. Am. Phil. Soc. 
Xv. p. 234°, 
Conotrachelus demens, Boh. in Schénh. Gen. Cure. viii. 2, p. 31°. 
Hab. Norra America, Colorado, Texas ?.—Mexico ?, Durango City, Paso del Macho, 
Jalapa (Hédge), Ventanas, Presidio (Forrer), Guanajuato, Toxpam (Sal/é), Vera Cruz } °, 
Sent us in profusion from Paso del Macho. A species easily identified by the dense, 
mottled, white vestiture of the elytra, this becoming ferruginous at the base and apex, 
and the network of white lines at the sides of the prothorax. The rugosely punctured 
prothorax is bicarinate on the disc in front, and has an abbreviated median ridge. 
The second and third elytral coste are usually a little interrupted below the base. The 
femora have a minute prominence exterior to the triangular tooth. The tarsal claws 
have a short tooth. The entire under surface is very coarsely, closely punctate, and 
opaque. ‘The upper surface is set with very short, decumbent, scattered, inconspicuous 
sete. The types of C. leucophwatus and C. demens have been communicated by 
Dr. Sjéstedt. Mr. Wickham has sent me specimens of the present species from 
Colorado under the name C. nivosus, Lec., which, however, lacks the carinze on the 
prothorax, &c. 
96. Conotrachelus umbrosus, sp. n. 
Subovate, opaque, black, the antenne and tarsi more or less ferruginous; densely clothed with narrow, 
minute, brown scales, the prothorax with a short oblique streak at each hind angle and a longitudinal 
one opposite the third elytral interstice, the latter at the base, and the humeri, usually fulvous, the 
femora obsoletely biannulate with fulvous. Head densely punctate; rostrum very stout, short, about as 
long as the head and prothorax, arcuate, densely, rugulosely punctate, finely unicarinate, the apical 
portion closely punctate, the antenne inserted at one-third from the apex in the 9, and at a little 
nearer the tip in the ¢, joints 3-7 of the funiculus transverse, 2 about half the length of 1. Prothorax 
transverse, narrowed and slightly constricted in front, feebly bisinuate at the base ; finely, rather sparsely 
punctate, the interspaces dull, the disc binodose at about the middle and also at the apex, the space 
between these elevations appearing longitudinally sulcate. Elytra constricted below the shoulders and 
