XYLECHINUS. 159 
pilosis, punctato-striatis, interstitiis convexis uniseriatim pallide setosis, 2° ad apicem subdepresso absque 
setis. 
Long. 2:2 millim. 
Oblong-oval, dull black, with smoky-brown pubescence. Rostrum short, not carinate nor impressed at 
junction with the front, which is subconvex, dull, and closely granulate; pubescence very short and 
scanty, a little thicker over mouth; antenne piceous-red with club black. Prothorax transverse, sub- 
parallel-sided to middle, then constricted to apex; surface covered with scattered light scales and short 
hairs, closely granulate, with a median subelevated line from base to middle. Elytra a little wider 
than prothorax and twice as long, rounded and crenate at base, sides subparallel to middle, apex obliquely 
rounded ; surface with close short fuliginous subsquamous hairs, rather strongly punctate-striate; inter- 
stices convex, with a single series of short pale erect bristles from base to apex, except on the declivous 
portion of the 2nd and 4th. Legs black, knees and tarsi lighter. Upper margin of tibiee with three spines. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Allied to XY. scabiosus, but smaller, without the rostral carina, with shorter 
pubescence, particularly on the elytra, the sete of which are more squamiform. The 
prothorax is more closely granulate, and the tibial spines are fewer and feebler. 
4, Xylechinus tessellatus, sp. n. 
Oblongus, piceus, squamis brunneis vestitus, pedibus ferrugineis ; prothorace parum transverso, anterius sub- 
constricto, supra granulato, rarius squamoso et piloso; elytris postice subdilatatis, squamis dilutioribus 
et obscurioribus tessellatis, subtiliter striatis, interstitiis planis uniseriatim setosis. 
Long. 2°3 millim. 
Oblong, dull, piceous. Head black, with mouth reddish, shortly pubescent; rostrum broad and short, not 
impressed, with a trace of a median carina; antennw reddish, the 3rd joint rather short. Prothorax 
scarcely broader than long, with the sides rounded and subconstricted anteriorly, thinly covered with 
pale subsquamous hairs, granular, with traces of a median elevated line. LElytra wider than the 
prothorax at base and twice as long, subdilated behind, sides nearly straight, apex obliquely rounded ; 
surface mottled with light and dark scales, the striz fine, not clearly punctured, interstices flat, with a 
single series of squamiform bristles. Underside black, thinly pubescent. Legs and coxe ferruginous ; 
anterior tibiz rather strongly dilated at apex, with five small spines on the upper border. 
Hab. Guatemata, Volcan de Agua (Champion). 
One example. A still smaller insect, quite easily separated from X. scabiosus by 
the flat interstices, but less readily distinguishable from the following species. 
5. Xylechinus marmoratus, sp. n. 
Oblongus, nigro-piceus, squamis flavo-cinereis in elytris hic illinc obscurioribus obtectus ; pedibus nigris, tarsis 
modo rufescentibus ; prothorace parum transverso, antice constricto, supra granulato ; elytris subcylindricis, 
punctato-striatis, interstitiis squamis brevibus uniseriatim ornatis. 
Long. 1°6-1°8 millim. 
Similar to the preceding species, and not readily distinguished. Smaller, narrower, and more parallel-sided ; 
head more shortly rostrate, the mouth darker, antenne blackish. Prothorax more transverse, the scales 
shorter and less setiform. lytra less broad in relation to the prothorax, the scales more uniformly 
cinereous, with the darker patches less conspicuous, the strie distinctly punctured, bristles of the inter- 
stices shorter-and more squamiform, Legs blackish, the tarsi above red ; anterior tibie less dilated. 
Hab. Guatemata, Panajachel, Capetillo, Volcan de Agua (Champion). 
