OTIDOCEPHALUS. 235 
seriate punctures becoming very little more impressed towards the base, and the interstices almost flat 
on the anterior portion of the disc. Legs as in O. pilicollis. 
Length 63-64, breadth 23-28 millim. (9.) 
Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion). 
Closely related to O. pilicollis, but with the pubescence on the rugulose portion of 
the prothorax sparser and entirely white, the elytral interstices almost flat at the base, 
the eyes smaller and less prominent. 
5. Otidocephalus cinereus, sp.n. (Tab. XIII. figg. 4, 4a.) 
Elongate, black, shining ; thickly clothed with fine grey pubescence, which is short, close, and uniform on the 
elytra, the latter without erect sete. Head closely punctate, not or feebly foveate between the eyes, 
which are large and widely separated; rostrum stout, much shorter than the prothorax, rugosely 
punctato-suleate, with a smooth raised median line; antenne with joints 2-7 of the funiculus short, 
2 one-half the length of 1, the club loosely articulated and slightly longer than joints 2-7 united. 
Prothorax much longer than broad, subcylindrical, narrowing a little towards the base, closely punctate, 
and with indications of a raised median line. Elytra long, much wider than the prothorax, widening to 
the middle, where they are somewhat gibbous; closely, finely, and confusedly punctate throughout, the 
fine seriate punctures becoming visible towards the suture. Femora each with a small triangular tooth. 
Anterior tibie feebly sinuate within. 
Length 7-74, breadth 24-3 millim. (3 @.) 
Hab, Mexico, Amula in Guerrero 6000 feet (H. H. Smith). 
Distinguishable from all the other Central-American forms by the close, uniform, 
grey pubescence of the elytra, which are without erect darker sete. Mr. Wickham 
has sent us a closely allied species from just beyond our northern boundary*. ‘These 
insects approach O. estriatus, Casey, from New Mexico, but the latter has intermixed 
blackish sete on the elytra. 
6. Otidocephalus mixtus, sp.n. (Tab. XIII. figg. 5, 5 a.) 
Elongate, somewhat conical, shining, neous, the antenne (the club excepted) ferruginous ; thickly clothed 
above and beneath with long, coarse, decumbent, intermixed, fulvous and white hairs, the elytra without 
erect sete. Head closely punctate, the eyes widely separated and not prominent ; rostrum stout, shorter 
than the prothorax, rugosely punctato-sulcate ; antennz with joint 2 of the funiculus a little shorter 
than 1, 3-7 each shorter than 2, the club ovate. Prothorax long, subcylindrical, closely, finely punctate. 
Elytra elongate, much wider than the prothorax, widening to beyond the middle, somewhat gibbous 
* Otidocephalus uniformis, sp. n. 
Elongate, black, shining, thickly and uniformly clothed with rather coarse grey pubescence, the elytra without 
sete. Antenne with joint 2 of the funiculus much longer than 3, and 3-7 subequal in length, the club 
ovate and compact. Prothorax narrowed in front and behind, closely punctate, with an interrupted 
smooth median line. Elytra very closely and finely punctate throughout, without trace of seriate 
impressions towards the suture. Fifth ventral segment feebly emarginate at the apex. Femora each 
with a small tooth. Anterior tibie deeply sinuate at the base within, and dilated on the inner side from 
the middle to the apex. 
Length 63, breadth 22 millim. (¢.) 
Hab, Noxta America, Brownsville, Texas (Wickham). 
2HH 2 
