378 RHYNCHOPHORA. 
quadrate, abruptly narrowed in front, bisinuate at the base; densely, rugulosely punctate. Elytra 
flattened on the disc anteriorly, subparallel in their basal third, compressed beneath the rounded humeri; 
seriate-punctate, the interstices 3, 5, 7, and 9 moderately costate, the ridge on 3 and 5 twice, and that on 
7 once, broadly and abruptly interrupted. Mesosternum slightly hollowed in front. Ventral segments 
1-4 finely and sparsely, and 5 closely, punctate, the latter deeply foveate on each side inthe ¢. Femora 
clavate, bidentate, the outer tooth conspicuous. Tibie seriate within. Tarsal claws with a moderately 
long, stout tooth. 
Length 5-54, breadth 25-24 millim. (<¢.) 
Hab. Mexico (Mus. Brit. ; ex coll. Flohr). 
Two specimens, exactly alike, both probably from the State of Vera Cruz. Very 
similar to C. albinus, but much smaller, the rostrum (3) rugose to the tip, the 
femora conspicuously bidentate, the first ridge on the elytra less raised posteriorly and 
interrupted below the base, the vestiture partly fulvous at the apex and condensed 
into a denser white post-median fascia, &c. 
Compared with C. sed/atus, the vestiture is denser, the prothorax is narrower, and the 
femora are more sharply bidentate. 
67. Conotrachelus albinus, sp.n. (Tab. XIX. figg. 15, 15a.) 
Conotrachelus albinus, Sturm, in litt. 
Oblong-ovate, rather broad, black; the vestiture fine and very dense throughout, white, except on the 
anteriorly evanescent, fulvous median vitta of the prothorax, which is divided down the middle by a 
white line, that of the head and rostrum fulvous, slightly intermixed with white, and that of the legs 
white, intermixed with fulvous, the anterior femora with a dense fulvous streak at the base above. Head 
densely punctate, transversely depressed between the eyes; rostrum stout, curved, short, not longer than 
the prothorax, rugulosely punctate and feebly tricarinate, sparsely punctate and bare at the tip, the 
antenne inserted a little before the apex, joint 2 of the funiculus shorter than 1. Prothorax slightly 
broader than long, subquadrate, abruptly narrowed in front, the base deeply bisinuate ; densely, rugosely 
punctate, with four smooth, inconspicuous, bare prominences on the middle of the disc and two others 
placed further outwards near the apex. Elytra flattened on the disc in front, a little dilated at the sides 
below the rounded humeri ; seriate-punctate, the interstices densely rugulose, 3, 0, 7,and 9 interruptedly 
costate, the ridge on 3 becoming prominent posteriorly and broadly, abruptly divided beyond the middle, 
that on 5 and 7 visible towards the base and apex only. Mesosternum flattened between the coxe. 
Ventral segments sparsely, finely punctate. Legs rather stout; femora clavate, unidentate ; tarsal-claws 
with a short tooth. 
Length 73, breadth 4 millim. (6 ?) 
Hab. Mexico (Sallé, ex coll. Sturm). 
One specimen. A species with the vestiture dense and almost uniformly white over 
the whole of the prothorax (the attenuate median vitta not being very conspicuous) and 
elytra, the latter with the first ridge uninterrupted to beyond the middle, and becoming 
more prominent posteriorly, and the second and third visible towards the base and 
apex only. Larger and more oblong than C. candidus, the vestiture denser and without 
fine intermixed sete, the legs and rostrum stouter, the tarsal claws very different, &c. 
C. eburneus is a more nearly allied form. 
