360 NITIDULID. 
The labrum is transverse, with a small excision in the middle in front. The man- 
dibles are concealed under the labrum; they have an elongate, very slender, and acute 
termination. The palpi are short and slender, not dilated. The antennary grooves 
are convergent. The prosternum is compressed along the middle, and terminates in a 
rather elongate process. The mesosternum is placed above the level of the metasternum 
and is feebly carinate ; the middle coxe are not greatly separated, and the metasternum 
is prolonged between them and curved upwards to be received into the small furcate pro- 
cess in which the mesosternum terminates. ‘The hind coxe are rather widely separated. 
The tibiz are slender. The tarsi are elongate and very slender, their terminal joint long, 
the fourth joint quite visible, but very small; the third and second joints are each 
elongate; the basal joint is as long as the second, third, and fourth together. 
These characters bring the genus near to Meoncerus, from which Somatoaus is 
distinguished by the elongate acuminate elytra and the filiform feet. It belongs to the 
series with the prosternal process closed behind, although the posterior face, or part, is 
excessively short. 
1. Somatoxus sallei, sp.n. (Tab. XI. fig. 20, 3.) 
Elongatus, subdepressus, nitidus, testaceus, antennarum clava fusca, prothorace medio fuscescente ; elytris 
seriatim fortiter punctatis. 
Long. 53 millim. 
Hab. Mexico, Cordova (Sailé). 
Antenne slender, with abrupt, rather short, three-jointed club, which is black, with 
the extremity yellowish. Head moderately closely and distinctly punctured. Thorax 
not greatly narrowed in front, sparingly punctate, only slightly emarginate in front; 
base feebly sinuate, not lobed in the middle ; the surface very shining, not in the least 
pubescent. Scutellum extremely short, but broad. Elytra elongate, sinuate at the 
sides behind, with the apices acuminate; with regular series of coarse punctures 
becoming obsolete behind ; interstitial punctuation almost absent. 
In addition to the single immature example from Sallé’s collection I have seen only 
one specimen, that has for many years been in my own collection without locality ; I 
supposed it to be from the West Indies or Mexico. We figure Sallé’s example, which 
is no doubt a male, as it has the front tarsi very feebly dilated and some very minute 
denticles at the sides of the elytra behind; in my own example the front tarsi are quite 
simple, and there are no denticles at the sides of the wing-cases. 
2. Somatoxus hydroporoides, sp. n. (Tab. XI. fig. 21.) 
Sat elongatus, subdepressus, nitidus, nigricans, antennis pedibusque fuscis, illarum clava nigra ; elytris seriatim 
fortiter punctatis, 
Long. 3-4 millim. 
Hab. Muxtco, Cordova, Toxpam (Sallé); Panama, Volcan de Chiriqui (Champion). 
