260 RHYNCHOPHORA. 
the upper surface is smoother and has an eneus lustre; the prothorax is less elongate 
and has a close fringe of white hairs at the base; the suberect blackish sete are but 
few in number; the setigerous punctures near the suture of the elytra are a little 
coarser than those of the strie, and more numerous than on the third and fifth 
interstices ; the femoral tooth is small. The rostrum is very short and stout. 
58. Otidocephalus levipennis, sp. n. 
Moderately elongate, shining, black, the antenns sometimes in part ferruginous; clothed with long, fine, erect, 
blackish sets, which are seriately arranged on the elytra, the latter sometimes with a few white hairs on 
the apical declivity and along the outer margin, the vestiture of the base of the prothorax, scutellum, and 
under surface white, the legs with intermixed white and blackish hairs. Head sparsely, minutely 
punctate, feebly foveate between the eyes, which are moderately large and rather narrowly separated in 
the ¢, more distant in the 2 ; rostrum shorter than the prothorax, moderately stout, punctato-sulcate 
at the sides, smooth along the middle; joint 2 of the funiculus slightly longer than 3. Prothorax long, 
globose in front, narrowed and constricted behind, very sparsely, minutely punctate, except along the 
basal margin, which is distinctly punctured. Elytra moderately long, convex, flattened on the disc at 
the base, much wider than the prothorax, widening to the middle, the humeri obtuse, obliquely truncated 
in front; the surface almost smooth, the usual seriate punctures obsolete or minute, the setigerous 
impressions very minute. Femora each with a small, narrow tooth. Anterior tibis sinuate within. 
Var.? The antenne entirely testaceous; the elytral sete finer and paler. . 
Length 24-42, breadth ,®-14 millim. (¢ Q.) 
Hab. Mexico (Sallé), Tapachula (Hége), Motzorongo (Flohr, in Mus. Berol.), Teapa 
(H. H. Smith); Guatemata, Sinanja, Panima, Teleman, and Chacoj in Vera Paz, Zapote 
(Champion); Nicaragua, Chontales (Belt) ; Costa Rica, San Carlos, Tucurrique (J/us, 
Dresden); Panama, Bugaba, Volcan de Chiriqui, David (Champion). 
A common species within our limits, varying greatly in size, and perhaps previously 
described from South America. It is distinguishable from O. albomarginatus and most 
of the other allied forms with a narrow femoral tooth by the almost smooth elytra, and 
the erect setosity of the upper surface. The sete in fresh specimens are abundant on 
both the prothorax and the elytra, but they are easily abraded. ‘The variety (?) is 
represented by various specimens from ‘Teapa, Teleman, and Chacoj. In one of several 
individuals from Zapote the elytra have a few short white hairs scattered amongst the long 
dark sete. ‘Two examples, from Chacoj and Panzos respectively, have a more elongate 
antennal club, but I am unable to separate them satisfactorily from the others. 
59. Otidocephalus megalops, sp.n. (Tab. XIII. fig. 25, 3.) 
Moderately elongate, black, shining; sparsely clothed with long, fine, suberect, bristly, white hairs, with a 
few intermixed blackish sete on the prothorax and anterior legs, and sometimes on the elytra also, the 
hairs on the latter arranged in a single series throughout the length of each interstice, becoming more 
numerous towards the apex, the vestiture of the scutellum, under surface, and legs white. Head almost 
smooth, very deeply foveate between the eyes above and slightly constricted behind them, the eyes 
large, convex, and narrowly separated in the ¢, less prominent and more distant in the 9; rostrum 
stout, much shorter than the prothorax, punctato-sulcate at the sides, smooth along the middle; antenne 
with joints 2-7 of the funiculus subequal in length, the club ovate. Prothorax long, globose in front, 
much narrowed and constricted behind, the surface with minute, widely scattered punctures. Elytra 
