290 RHYNCHOPHORA. 
smooth, median space. Scutellum transverse. Elytra gradually narrowing from the base, depressed 
along the suture, the humeri rather prominent ; deeply punctate-striate, the interstices asperato-punctate. 
Beneath densely punctate. Prosternum unimpressed behind the transverse subapical groove. First 
ventral segment flattened down the middle in the g. Tibiw unguiculate in the ¢, obsoletely so in 
the @. 
Length 3-42, breadth 13-25 millim. (¢ 9.) 
Hab. Muxico, Oaxaca (Hoge), Chiapas (Sallé); Guaremata, Zapote, Calderas, 
Duefas, Purula (Champion). 
Found in numbers on the slope of the Volcan de Fuego, at Calderas, females 
preponderating, the single specimen of this sex from Zapote being smaller and less 
elongate than the others. The transverse cluster of pure white scales on the scutellum, 
the line of scattered similar scales along each elytral interstice (often in part abraded), 
the shining surface, depressed elytral suture, and the elongated antennal club of the 
male, distinguish G. scutatus. The present species is very like Odontocorynus 
creperus. 
60. Gerzeus aspersus, sp. n. (Tab. XV. figg. 32, 32a, ¢.) 
Subelliptic, shining, black, the antenne fusco-ferruginous ; the sides, hind angles, and median lobe of the 
prothorax, and the elytral interstices, with scattered pure white scales, the scutellum with a dense 
oblong cluster of similar scales; the under surface thickly albo-squamose, the vestiture of the legs 
finer and also white. Head closely punctate, foveate between the eyes; rostrum strongly arcuate, 
about as long as the head and prothorax, rather stout, striate-punctate, the antenne inserted at 
the middle, the antennal club elongate, as long as or a little longer than the funiculus. Prothorax 
broader than long, rounded at the sides anteriorly, constricted and much narrowed in front; closely, 
coarsely punctate (the punctures separate one from another), except along the smooth median line. 
Scutellum subquadrate. Elytra subtriangular, depressed along the suture, blunt at the tip; deeply 
punctate-striate, the interstices roughly asperato-punctate. Beneath densely punctate. Prosternum 
unimpressed behind the transverse subapical groove, unarmed. First ventral segment unimpressed. 
Length 3-4, breadth 14-2,4, millim. (<¢.) 
Hab. Mexico (coll. Solart), Toxpam and San Andres Tuxtla in Vera Cruz (Sallé). 
Four males. Very like G. scutatus, but with the general outline more elliptic, 
due to the prothorax and elytra being a little more rounded at the sides and the 
humeri less prominent. 
61. Gerzeus longiclava, sp. n. (Tab. XV. figg. 33, 33a, 3.) 
Subrhomboidal, nigro-piceous, the rostrum, antenne, and legs obscure ferruginous ; the prothorax (except 
along the two bare spaces on the disc) and the base of each elytral interstice clothed with long, narrow 
ochraceous scales, those on the prothorax transversely arranged, the prothorax also with a whiten 
median line, which is continued on to the scutellum and along the suture of the elytra, the rest of the 
elytral interstices each with two lines of narrow blackish-brown scales; the vestiture of the under 
surface rather coarse, dense, and whitish, that of the legs also white. Head finely punctate, foveate 
between the eyes; rostrum arcuate, nearly as long as the elytra, thickened towards the base, striate and 
sparsely, finely punctate, the antenne inserted at a little behind the middle, joints 3-7 of the funiculus 
strongly transverse and closely articulated, the club nearly twice as long as the funiculus, its joint 2 much 
longer than 1. Prothorax transverse, gradually narrowing from the base, narrowed and constricted in 
