OTIDOCEPHALUS. 245 
One specimen, somewhat abraded. In this insect the elytra have a short, stiff, 
rather abundant, blackish setosity, intermixed with coarse, flattened, squamiform, and 
narrow white hairs. The interstitial punctuation is irregular and nearly as coarse as 
that of the strie. The elytra themselves are more flattened towards the base than in 
O. villosus and other allied forms. 
27. Otidocephalus beckeri, sp. n. 
Moderately elongate, shining, black, the antenne (the club excepted) obscure ferruginous ; sparsely clothed 
with decumbent white hairs intermixed with comparatively short, fine, erect, blackish sete, the white 
hairs on the elytra short, rather coarse, somewhat squamiform, and arranged in a double or single row 
throughout the length of each interstice, the vestiture of the scutellum and under surface white, the legs 
with intermixed white and blackish hairs. Head finely punctate, smoother and flattened between the 
eyes, which are moderately large and widely separated ; rostrum stout, curved, a little shorter than the 
prothorax, punctato-suleate at the sides, smooth along the middle; antennal club ovate. Prothorax long, 
subcylindrical, slightly narrowed behind, sparsely punctate, a narrow space along the middle impunctate. 
Elytra moderately long, much wider than the prothorax, gradually widening to the middle, not very 
convex, flattened on the disc anteriorly, subtruncate at the base, the humeri obtuse ; seriate-punctate, the 
punctures placed in shallow strie towards the suture, the interstices finely bi- or uniseriate-punctate. 
Femora each with a small triangular tooth. Anterior tibie strongly sinuate within. 
Length 53, breadth 2, millim. (3?) 
Hab. Mexico, Tlaltizapan * (coll. Becker). 
One specimen. Smaller and narrower than 0. ericius, the white hairs on the elytra 
less erect, finer, and arranged in a double (instead of a single) row on most of the 
interstices. ‘Che less prominent humeri, the finer interstitial punctuation, the absence 
of the rather broad white scales on the elytra, and the smaller femoral tooth separate 
it from O. brevisetis. 
28. Otidocephalus hystricosus, sp. n. (Tab. XIII. figg. 17, 17 a.) 
Elongate, black, shining ; clothed with an abundant, very long, erect, fine, blackish setosity intermixed with 
white hairs, which on the elytra are arranged in a single or irregular double series throughout the entire 
length of each interstice, the vestiture of the scutellum and under surface white, the legs with very long, 
projecting, white and blackish hairs. Head closely punctate, rugose between the eyes, which are 
moderately large and somewhat widely separated ; rostrum stout, much shorter than the prothorax, 
rugosely punctured at the sides, smooth along the middle; antenne with joints 2-7 of the funiculus 
short, the club ovate. Prothorax moderately long, narrowed in front and behind, somewhat closely 
punctate. Elytra convex, long, much wider than the prothorax, widening to the middle, subtruncate at 
the base; coarsely punctate-striate, the punctures closely placed, the interstices feebly convex, and 
minutely bi- or uniseriate-punctate. Femora each with a small, narrow, acute tooth. Anterior tibie 
slightly curved externally and strongly sinuate within. 
Length 4144, breadth 14-2 millim. 
Hab. Muxico (Flohr, in Mus. Berol.), Zacualtipan in Hidalgo (Hége), Parada (Sad/é). 
This species has the upper surface clothed very much as in O. setiger, except that 
the white hairs are more numerous on the elytra and extend the whole length of each 
* There are two places of this name in Mexico—one near Cuernavaca, the other near Tenango del Valle. 
