METRIOPHILUS.—PIS ZUS. 591 
other. The basally narrowed prothorax separates WV. nigrisetis from M. v-fulvwm and 
other allied forms. The short, black, suberect, fascicularly-arranged scales give the 
upper surface an uneven appearance. 
16. Metriophilus v-fulvum, sp.n. (Lab. XXIX. figg. 5, 5 a.) 
Subovate, rather broad, opaque, the antennx obscure ferruginous ; rather sparsely clothed with minute brown 
scales intermixed with short, coarse, semierect, black sets, the latter clustered into six fascicles on the 
prothorax (two at the apex and four across the middle) and various interrupted, sinuous, transverse 
lines on the elytra; the prothorax with a V-shaped patch on the dise behind, extending on to the 
scutellum, and a sharply-defined streak on the mesothoracic epimera, fulvous or ochreous, Head 
rugulosely punctate and semicircularly depressed in front ; rostrum strongly curved, gibbous and rugosely 
punctate at the base, almost smooth in its outer half. Prothorax much broader than long, constricted 
and narrowed in front; rather coarsely punctate, feebly binodose on the disc and at the apex, subcarinate 
at the base. Scutellum oblong. Elytra much wider than the prothorax, broadly rounded at the apex ; 
seriate-punctate, the interstices alutaceous, the ninth raised from a little below the base. Beneath 
sparsely punctate. Legs short; anterior femora sharply, the others more feebly, dentate. 
Length 33-5, breadth 2-22 millim. 
Hab. Panama, David and Caldera in Chiriqui (Champion). 
Two specimens. Near M. ramulosus, but with the elytra broadly rounded at the 
apex, the prothorax with a V-shaped fulvous mark on the disc behind, the black setz 
on the elytra arranged in interrupted wavy lines. The elytral vestiture is like that of 
M. nigrescens. 
PISAKUS, gen. nov. 
Rostrum stout, strongly arcuate, very little longer than the prothorax, the antenne inserted beyond the 
middle, the funiculus 7-jointed, the joints widening outwards, the club ovate ; eyes rather large, depressed, 
laterally placed, covered in repose ; prothorax transverse, deeply bisinuate at the base, with prominent 
ocular lobes; scutellum visible; elytra much wider than the prothorax, moderately long, 10-striate, 
feebly sinuate at the sides beneath; mesosternum horseshoe-shaped ; metasternum moderately long, the 
episterna narrow ; ventral segment 2 considerably longer than 3; legs short; femora clavate, very 
sharply unidentate ; tibie somewhat curved, the intermediate pair, and sometimes the anterior and 
posterior pairs also, angulate towards the middle externally ; tarsal claws simple; body oblong-ovate, 
squamose and strongly setose. 
Type, P. varicus. 
Piseus includes three species, the two smaller ones having much the facies of 
Metriophilus minimus. 'They are the only Central-American forms of this group 
known to me with the intermediate tibie angulate towards the middle externally. 
The elytra are rather sharply striate, the tenth stria extending to near the apex. The 
eyes, as in Vetriophilus, are completely covered in repose by the prominent ocular 
lobes of the prothorax. 
1. Piszeus varicus, sp.n. (Tab. XXIX. figg. 6,6a; 66, intermediate leg.) 
Subovate, rather narrow, black, the antenne and the tips of the tarsi ferruginous ; densely clothed with 
pale brown scales, the prothorax and elytra usually more or less variegated with blackish and cinereous, 
and also thickly set with long, erect, blunt, light and dark sete, the vestiture of the under surface 
sparser, the legs strongly setose. Head densely punctate ; rostrum rugosely punctate and subcarinate, 
