242 RHYNCHOPHORA. 
near the apex), these white hairs being intermixed with long, suberect, darker sete, 
which are not mentioned by Chevrolat in his description. The prothorax is very 
sparsely punctate. ‘The head is sulcate above between the eyes, which are large and 
not very widely separated. The femoral tooth is moderately large and triangular. 
The anterior tibiz are strongly sinuate within. The fifth ventral segment is feebly 
emarginate at the apex in the male. 
20. Otidocephalus octolineatus, sp. n. (Tab. XIII. figg. 14, 14 a.) 
Elongate, black, very shining; clothed with white pubescence, which on the prothorax is long and directed 
forwards, and on the elytra is short and decumbent, and mainly concentrated into four compact lines on 
each wing-case (one on each of the interstices 2, 4, 6, and 8), the tenth interstice also with an incomplete 
line of white hairs and the others with a single scattered row of similarly coloured hairs towards the apex, 
1, 3, 5, and 7 each with a row of long, erect, blackish sete. Head sparsely punctate, faintly foveate 
between the eyes, which are large, prominent, and somewhat widely separated ; rostrum stout, shorter 
than the prothorax, irregularly punctato-sulcate, much smoother in one specimen (2 ?); antenne with 
Joints 2-7 of the funiculus short, the club ovate. Prothorax long and subcylindrical, a little narrowed 
behind, very sparsely punctate, the punctuation becoming closer towards the apex. Elytra elongate, 
much wider than the prothorax, widening to about the middle and arcuately narrowing thence to the 
apex ; finely punctate-striate, the punctures closely placed, the interstices flat, 2, 4, 6, 8, and 10 each 
with about three rows of closely placed minute punctures, and the others with a single row of scattered, 
setiferous, coarser impressions. Fifth ventral segment feebly emarginate at the apex in the g.. Femora 
each with a large triangular tooth. Anterior tibia strongly sinuate within. . 
Length 6-63, breadth 22-24 millim. 
Hab. Muxico, Chilpancingo in Guerrero (Hoge, H. H. Smith). 
A species very like O. linetpennis, but with only four complete lines of white 
pubescence on each elytron, and these placed on different interstices, the setz arising 
from the intervening spaces, which are uniseriate-punctate. Three specimens. 
21. Otidocephalus curvimanus, sp. n. (Tab. XIII. figg. 15, 15a, b.) | 
Elongate, very shining, black, the antenne rufo-piceous ; very sparsely clothed with white pubescence, which 
on the elytra is mainly concentrated into four single or double lines (one on each of the interstices 2, 4, 6, 
and 8), the interstices each with a row of long, erect, blackish sete. Head sparsely punctate, shallowly 
foveate between the eyes, which are large and somewhat widely separated; rostrum stout, shorter than 
the prothorax, punctato-sulcate at the sides, with a broad smooth space along the middle ; antennz with 
joint 2 of the funiculus about half the length of 1, the club oblong-ovate. Prothorax long and 
subcylindrical, a little narrowed towards the base, very sparsely punctate. Elytra elongate, much wider 
than the prothorax, widening to about the middle, where they are somewhat gibbous ; very finely seriate- 
punctate, the interstices flat, each with one or two rows of scattered punctures similar to those of the 
strie. Femora each with a rather large triangular tooth. Anterior tibiz abruptly bent inwards at the 
apex and very strongly sinuate within. 
Length 6-63, breadth 23 millim. (¢ ?) 
Hab. Mzxtco, 'Tapachula in Chiapas (Hége). 
Two specimens. The four narrow lines of white pubescence on each elytron, the 
single series of long blackish sete on each interstice, and the abruptly incurved apex 
of the anterior tibiz will serve to distinguish this species, which is nearly related to 
O. lineipennis and O. octolineatus. 
