226 RHYNCHOPHORA. 
on the elytra, the short antenne, stout legs, &c. This is a form of the North-American 
P. pictus, Lec., differing from it in having white fascie on the elytra, and the pubes- 
cence of the latter sparser and coarser throughout. The colour is variable. Three 
specimens. 
6. Piazorrhinus rugulosus, sp.n. (Tab. XII. fig. 26.) 
Short-ovate, comparatively broad, dull, black, the prothorax (a transverse, anteriorly rounded space on the 
disc behind, and a small space before the middle, excepted), the elytra with a narrow space extending 
from the humeri downwards, the base of the antenne, the apex of each of the femora, and the tips 
of the intermediate and hind tarsi, more or less ferruginous; sparsely clothed with white and ochreous 
pubescence, that of the under surface and legs entirely white, the dark patch at the base of the prothorax 
bare, the white pubescence on the elytra chiefly confined to the sides and apex, and showing a tendency 
to form narrow curved fascie on the disc. Head rather coarsely punctate, the eyes large and well 
separated ; rostrum very short and stout, widening outwards, thickly punctured; antenne short, the 
club stout, ovate, and as long as the funiculus. Prothorax much broader than long, narrowing almost 
from the base, a little rounded at the sides, constricted in front, densely, rugulosely punctate, the dise 
with a smooth abbreviated carina behind the middle. Elytra much wider than the prothorax, subparallel 
in their basal half, the humeri obliquely truncated in front and not prominent ; deeply punctate-striate, 
the interstices almost flat and densely, rugulosely punctate. Legs short and very stout, the femora each 
with a rather long acute tooth. 
Length 2, breadth 12 millim. (d.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. The chief characters of this species are the densely rugulose elytral 
interstices, the short, very stout legs, with strongly toothed femora, the stout antennal 
club, and the peculiar coloration. The pubescence of the prothorax and elytra is most 
conspicuous at the sides and apex. 
7. Piazorrhinus cyaneus, sp.n. (Tab. XII. fig. 27.) 
Ovate, convex, shining, black, the prothorax, elytra, femora, and tibie blue; very sparsely clothed with a 
short, fine, grey pubescence. Head sparsely punctate, the eyes large and somewhat widely separated ; 
rostrum very stout, widening outwards, shorter than the prothorax, coarsely punctate, obsoletely carinate 
at the base; antennee short, the club about as long as the funiculus. Prothorax broader than long, 
conical, coarsely, closely punctate, the disc feebly carinate towards the base. LHlytra wider than the 
prothorax, somewhat gibbous, the humeri rounded; deeply punctate-striate, the interstices convex and 
asperato-punctate. Femora each with a minute tooth. 
Length 23-24, breadth 13-1? millim. (2.) 
Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
Differs from P. cyanescens in its larger size and more robust build, the smaller eyes, 
the somewhat gibbous elytra, and the black tarsi. Two specimens. 
8. Piazorrhinus cyanescens, sp.n. (Tab. XII. fig. 28.) 
Subovate, shining, the upper surface cyaneous or bluish-green, the under surface black, the tarsi and the scape 
and funiculus of the antenne ferruginous or rufo-testaceous, the club of the latter piceous; the prothorax, 
except on the disc, the scutellum, and a broad, common, U-shaped space on the elytra (extending from 
the base to one-fourth from the apex) clothed with greyish-white pubescence, the vestiture of the under 
