OTIDOCEPHALUS. 251 
emarginate at the apex in the ¢. Legs elongate; femora each with an exceedingly large, triangular 
tooth ; anterior tibie strongly sinuate within. 
Var.? Rostrum stouter; the dorsal interstices of the elytra each with a row of blackish sete. 
Length 63-8, breadth 24-34 millim. (¢ @.) 
Hab. Guaremata, Sabo and Sinanja in Vera Paz (Champion); Panama, Caldera in 
Chiriqui (Champion). 
Broader and more convex than 0. constrictus, the legs more elongate; and also a 
close ally of the Mexican O. pubescens, from which it may be separated by the broader 
femoral tooth and the absence of long, intermixed, white hairs on the elytra. From 
O. inquisitus, Kirsch, from Bogota (the type of which I have seen *), which is of the 
same general shape as O. dentipes, it is sufficiently distinguished by the much larger 
femoral tooth, the punctured head, the much finer and shallower seriate punctuation 
of the elytra, &c. Three specimens from Guatemala, and one from Panama, the latter 
treated as a varietal form, but probably distinct. 
40. Otidocephalus latidens, sp. n. 
Moderately elongate, shining, black, the antenne (the club excepted) reddish ; clothed with scattered blackish 
sete: intermixed with a few white hairs, the elytra with the sete long, erect, and arranged in a single 
series down each interstice and the white hairs rather coarse, the vestiture of the scutellum and under 
surface white, the legs with intermixed white and blackish hairs. Head sparsely punctate, shallowly 
foveate between the eyes, which are moderately large and widely separated; rostrum shorter than the 
prothorax, punctato-suleate at the sides, smooth along the middle ; antenne with joint 2 of the funiculus 
slightly longer than 3, the club oblong-ovate. Prothorax long, subcylindrical in front, narrowed and 
distinctly constricted behind, the surface with a few widely scattered punctures, Elytra oblong, much 
wider than the prothorax, gradually widening to the middle, moderately convex, the humeri obliquely 
truncated in front; finely seriate-punctate, the interstices each with a series of widely scattered fine 
punctures. Femora each with an exceedingly large, broad, triangular tooth. Anterior tibie strongly 
sinuate within. 
Length 54-61, breadth 2-23 millim. 
Hab. Mexico, Juquila in Oaxaca (Sallé). 
Two specimens. Differs from O. meaicanus in the exceedingly large femoral tooth, 
from O. dentipes in the narrower and less inflated elytra and the posteriorly constricted 
prothorax, and from 0. tonsilis in its less elongate, broader shape, as well as in having 
a few coarse, semierect, white hairs scattered amongst the elytral sete. The inter- 
mixed white hairs are coarser than in O. pubescens, and the femoral tooth is broader 
and larger. 
41. Otidocephalus constrictus, sp. n. 
Elongate, black, shining; clothed with widely scattered, long, erect, blackish setez, which on the elytra are 
arranged in a single series along each of the dorsal interstices and at the apex are intermixed with 
numerous long white hairs, the vestiture of the scutellum and under surface white, the legs with inter- 
* This specimen is in bad condition, the dark sete on the alternate dorsal interstices of the elytra being 
mostly rubbed off, The femoral tooth is formed as in 0. pubescens. 
2KK2 
