262 RHYNCHOPHORA. 
Brisa Hoxpuras, Rio Hondo (Blancaneaux); Guatemata (Mus. Dresden), Zapote, 
Capetillo, Duefias, San Gerénimo, San Juan, Senahu (Champion) ; Nicaragua, Chon- © 
tales (Janson). 
Found in plenty at Duefias. In this species the scattered white bristly hairs on the 
elytra are usually intermixed with blackish sete, the latter predominating on the disc 
in the typical Mexican specimens; the elytra themselves are conspicuously seriate- 
punctate, the frontal impression is small, the femoral tooth is small and narrow, and 
the tarsi are often testaceous. The small femoral tooth separates O. albomarginatus 
from 0. setiger, O. cavifrons, and other similar forms, and the distinctly seriate-punctate 
elytra distinguishes it from O. levipennis. 
62. Otidocephalus core, sp. n. 
Moderately elongate, shining, black, the antenne (the club excepted) and the tarsi in part ferruginous ; 
sparsely clothed with rather long, fine, white, decumbent hairs, which on the prothorax, elytra, and legs 
are intermixed with erect blackish sete. Head convex and coarsely punctured, smoother and flattened 
between the eyes, which are moderately large and widely separated ; rostrum stout, curved, depressed at 
the base above, a little shorter than the prothorax, punctato-sulcate at the sides, smooth along the middle ; 
antennal club ovate. Prothorax long, convex, much narrowed behind, and also narrowed and slightly 
constricted in front, coarsely, rather closely punctate. Elytra moderately long, convex, much wider than 
the prothorax, gradually widening to near the middle, subtruncate at the base, the humeri obtuse ; 
coarsely seriate-punctate, the punctures placed in shallow strize, the interstices feebly convex, very 
minutely and irregularly uniseriate-punctate. Femora each with a small, narrow tooth. Anterior tibie 
strongly sinuate within. 
Length 4, breadth 12 millim. 
Hab. Mexico, El Cora in Tepic (coll. Becker). 
Two specimens. This insect is perhaps nearest allied to 0. albomarginatus, differing 
from that species in the coarse punctuation of the upper surface, the anteriorly 
narrowed prothorax, &c, The small femoral tooth separates it from O. setiger, 
O. cavifrons, and others. 
63. Otidocephalus comatus, sp. n. | 
Moderately elongate, black, shining; clothed with an abundant, very long, erect, fine, blackish setosity 
intermixed with a few white hairs, the sete: on the elytra arranged in a single row along each interstice, 
the vestiture of the scutellum and under surface white, the legs with long, white, projecting hairs inter- 
mixed with a few blackish ones. Head sparsely punctate, the eyes moderately large and not very widely 
separated ; rostrum stout, shorter than the prothorax, punctato-suleate at the sides, smooth along the 
middle; antenn with joint 2 of the funiculus slightly longer than 3, the club ovate. Prothorax long, 
convex, narrowed and subcylindrical behind, very sparsely punctate, the punctures becoming crowded at 
the base only, a space on the flanks impunctate. Elytra moderately long, not very convex, flattened on 
the disc at the base, wider than the prothorax, widening to the middle, the humeri somewhat obliquely 
truncated in front; very finely seriate-punctate, the punctures not very closely placed, the interstices 
minutely uniseriate-punctate. Femora each with an acute narrow tooth. Anterior tibiz curved ex- 
ternally and strongly sinuate within. 
Length 4, breadth 13 millim. (¢ ?) 
Hab. Mexico, Sierra de Durango? (ex coll. Flohr). 
