OTIDOCEPHALUS. 253 
scutellum and under surface white. Head closely, rather coarsely punctate, the eyes moderately large 
and widely separated; rostrum almost straight, not very stout, a little shorter than the prothorax, 
punctato-sulcate, smooth along the middle; antenne with joints 2-7 of the funiculus subequal in length, 
1 twice as long as 2,the club ovate. Prothorax long, much narrowed behind, subcylindrical in its anterior 
half, coarsely and somewhat closely punctate, a narrow space along the middle impunctate. Elytra 
moderately long, convex, much wider than the prothorax, widening very gradually to the middle, 
subtruncate at the base, the humeri rounded ; coarsely punctate-striate, the interstices feebly convex, 
and each irregularly bi- or uniseriate-punctate. Legs stout ; femora each with a large triangular tooth ; 
anterior tibie strongly sinuate within ; tarsal claws feebly appendiculate. 
Length 54, breadth 2 millim. ( *) 
Hab. Mexico, Ventanas in Durango (//é¢e). 
One specimen. The castaneous coloration, the coarse punctuation, the intermixed 
blackish setosity and long white hairs (the blackish sete extending on to the legs), 
and the almost straight rostrum, are the principal characteristics of this species. 
44, Otidocephalus panamensis, sp. n. 
Elongate, black, shining ; clothed with scattered, long, erect or suberect, bristle-like, white hairs, which on 
the elytra are sometimes intermixed with a few blackish sete, and arranged in a single series on each 
interstice, becoming more numerous towards the apex, those on 2,4, 6, and 8 mostly confined to the 
apical declivity, the vestiture of the scutellum, legs, and under surface closer. Head with a few scattered 
fine punctures, shortly sulcate between the eyes above, the latter large, prominent, and somewhat narrowly 
separated; rostrum very stout, barely two-thirds the length of the prothorax, punctato-sulcate at the 
~ sides, smooth along the middle; antenn® with joints 2-7 of the funiculus short, the club ovate. Prothorax 
long, more or less globose in front, and narrowed and constricted behind, the surface with a few fine 
scattered punctures. Elytra moderately long, convex, much wider than the prothorax, widening to the 
middle, the humeri obliquely truncated in front; finely seriate-punctate, the punctures closely placed, 
the interstices flat, minutely uniseriate-punctate, 2, 4, 6, and 8 impunctate to about the middle. Fifth 
ventral segment feebly emarginate in the centre at the apex in the $. Femora each with a large, acute, 
triangular tooth. Anterior tibie strongly sinuate within. 
Length 4-6, breadth 13-23 millim. (d 9.) 
Hab. Panama, Bugaba (Champion). 
More elongate than O. megalops, the frontal fovea small and narrow, the seriate 
punctures of the elytra more closely placed and a little coarser, and those on the 
alternate interstices not reaching the base, the eyes less prominent in the male, 
the femoral tooth large. Found in abundance at Bugaba, the specimens varying 
in the intensity of the elytral punctuation and in the colour of the elytral sete. 
45. Otidocephalus longipilis, sp. n. 
Moderately elongate, shining, black, the antenne and tarsi piceous or obscure ferruginous ; clothed with long, 
fine, erect, rigid hairs or sete, which on the elytra are arranged in a single series throughout the length 
of each interstice, and are mostly blackish or brown on the disc and white towards the sides and apex, 
the vestiture of the scutellum and under surface white, the legs with intermixed white and brown hairs. 
Head very sparsely punctate, the eyes moderately large and somewhat narrowly separated ; rostrum 
shorter than the prothorax, punctato-sulcate at the sides, smooth along the middle. Prothorax long, 
globose in front, narrowed and constricted behind, very sparsely punctate. Hlytra moderately long, 
convex, much wider than the prothorax, widening to the middle, the humeri obliquely truncated in front ; 
