CAMPTOCAEPUS.-— TEEETILANGUE1A. 7 



It is singular that Crotch should have omitted any notice of the remarkable sexual 

 character in this species, as in his collection are two or three males ; and Motschulsky 

 has in his description of Trapezidera longicollis expressly mentioned this character : — 

 " jambes anterieures allongees, courbees, et dilatees a l'extremite dans l'un des sexes, 

 cuisses renflees et un peu arquees." I have no hesitation in the application of 

 Motschulsky's name ; his specimens were only of medium size and from Nicaragua. 

 The diagnosis given by Crotch is altogether too meagre. I have more than two 

 hundred specimens of this insect before me, very many of which are from Cordova : 

 except in length, it does not appear subject to variation ; a few have obsolete sculpture 

 or punctuation on the thorax, and small males have the tibiae less strongly bent. 



MERISTOBELUS. 



Body shaped as in Trapezidera, but the elytra with their apices acuminate and divaricating, not denticulate. 

 Head with the epistoma not well defined ; a space between the antennal socket and the eye ; ocular 

 striolae straight, not well marked ; stridulating carinse small, double, hidden by the front of the thorax. 

 Thorax trapezoidal, without basal striae ; the base with a fine marginal line, and scarcely produced in 

 the middle. Scutellum obtrigonal. Legs not very long, their femora thin, not roughened ; tarsi slightly 

 hairy beneath as in male Teretilanguria. Prosternal process wide, not margined nor foveolate, truncate at 

 the apex, very even. Ventral apical segment of the abdomen rounded at the apex, not punctured : hairy 

 only at the sides. Apex of the elytra not hairy beneath. Sex uncertain ( $ ?). 



I place in this genus a single species from Mexico. Two examples only, both 

 possibly females, of this are known to me. 



1. Meristobelus forcipatus. 



JEneus ; capite distincte parcius, prothorace obsolete crebrius, punctatis ; elytris obsolete punctato-striatis, cum 

 apicibus acuminatis, divaricatis, et paullulum reflexis; corpore subtus glabro; pedibus piceis, geniculis 

 tarsisque nigricantibus. Long. 13 millim. 



Hab. Mexico, Chinantla (Salle). 



Resembling, but rather smaller than average specimens of, Trapezidera amea, but at 

 once distinguished by the curious bifurcate apices of the elytra. The antennae are 

 bluish-black, with their club formed as in Trapezidera, the four terminal joints duller 

 and much wider than the seventh. The head does not present any striking characters ; 

 the epistoma is hardly marked by a faint straight impression ; the antennal sockets are 

 deep, the ridge above strong (above the eye the ridge is very little raised). The whole 

 insect is narrower before and behind. The tarsi are of average width, rather wide if 

 the examples are females (there is no means of judging of the sex without destroying 

 the specimens) ; finely pubescent above, and with short matted hairs beneath. 



TERETILANGURIA. 



Teretilanguria, Crotch, Cistula Ent. i. p. 394 (1876). 



This genus was proposed by Crotch for a large and common South- American insect 

 described by him as Teretilanguria kirschii, with which Languria basalis, Guerin (Icon. 



