214 RHYNCHOPHORA. 
barely reaching the front of the prothorax, joint 2 of the funiculus much shorter than 1, 3-7 short and 
moniliform ; eyes prominent. Prothorax strongly transverse, wider than the head, obliquely narrowing 
from the middle forwards, densely, finely punctate. Elytra much wider than the prothorax, narrowing 
from about the middle, and somewhat pointed behind; finely punctate-striate, the interstices almost flat, 
obsoletely uniseriate-punctate. Legs rather short; anterior and intermediate tibie unguiculate at the 
apex in the ¢. 
Length 4-41, breadth 12-13 millim. (¢ Q.) 
Hab. Mexico, Chilpancingo in Guerrero 4000 feet (H. H. Smith). 
Two males and one female, in very fresh condition. A small form, with the legs. 
and body uniformly clothed with metallic green scales, the antenne rather short, the 
head small, the prothorax short and subconical, the elytra somewhat pointed behind. 
The deciduous portion of the mandibles is short, curved, and acute. 
11. Polydrosus pallidisetis, sp. n. (Lab. IX. figg. 12, 12a.) 
Oblong, rather robust, black, the antenne and legs rufo-testaceous ; thickly clothed with golden-green scales 
and also set with long, fine, erect, pallid sete, which are uniseriately arranged down each elytral inter- 
stice; the legs albo-setose and with a few scattered green scales. Head and rostrum densely punctate, 
the rostrum parallel-sided behind the points of insertion of the antenne, the nasal plate short, with 
a v-shaped ridge behind, the scrobes deep, angulate, descending beneath the eyes, the latter rather 
small. Antenne comparatively short, the scape not quite reaching the front of the prothorax ; joint 2 of 
the funiculus a little longer than 3, 3-7 short and moniliform. Prothorax strongly transverse, wider 
than the head with the eyes. Elytra gradually widening to the middle, much broader than the 
prothorax, becoming subacuminate posteriorly; finely punctate-striate, the interstices flat and faintly 
uniseriate punctate. Legs rather short. 
Length 33, breadth 12 millim. (92?) 
Hab. Mexico, Amula in Guerrero (H. H. Smith). 
One specimen. This insect looks more like a Phyllobius than a Polydrosus, but it 
has the scrobes lateral, angular, and deep. The legs and antenne are comparatively 
short, the prothorax broad and strongly transverse, and the pallid erect sete very 
conspicuous. 
POLYDROSODES, gen. nov. 
Head subconical, the exposed portion as long as the rostrum, the latter dilated anteriorly and slightly longer 
than broad, the scrobes lateral, short, and deep; eyes large, oval, distant from the prothorax ; antenne 
very slender, long; mentum rather large, covering the maxille; prothorax conical, deeply bisinuate at 
the base; scutellum minute; elytra long, widening posteriorly, separately rounded at the base, and with 
rather prominent humeri, the tenth stria reduced to a row of scattered punctures, the lower margin 
feebly sinuate; legs long, slender; femora moderately clavate, unarmed ; tibie unarmed at the apex, 
articular surface of posterior pair terminal, glabrous; tarsal claws connate at the base; body conico- 
elongate, squamose, winged. , 
Type, P. conicus. 
‘This genus includes a single remarkable form from Mexico nearly related to Poly- 
drosus, with the prothorax and elytra deeply sinuate at the base, the scutellum very 
small, and the body conico-elongate in shape. 
