CHALEPUS. 57 
_ five outer ones forming a slender elongate club. Thorax slightly broader than long ; 
sides obsoletely angulate, nearly straight and parallel at the base, obliquely converging 
before the middle ; disc subcylindrical, closely foveolate-punctate ; the lateral margins, 
and also a few of the punctures on either side of the middle disc, black; a patch just 
in front of the scutellum, together with the apical margin, piceous. Elytra oblong, 
parallel, obtusely rounded at the apex; outer margin minutely serrulate, the serratures 
rather coarser near the hinder angle, the latter rounded ; each elytron with eight, at the 
extreme base with nine, rows of large deep punctures ; second, fourth, and sixth inter- 
spaces costate, the fifth also elevated at its base ; nigro-zeneous, a large irregular patch 
which extends from the base to beyond the middle, and which covers laterally the 
space between the humeral calli, together with some irregular spots on the apical 
third of the disc, flavo-fulvous. 
C. distinctus is closely allied in general form and sculpture to C. inwqualis, Weber, 
a North-American species. 
15. Chalepus breviceps. 
Anguste oblongus, postice vix ampliatus, dorso subdeplanatus, nitidus; subtus cum capite rufo-piceus, pectore 
nigro-piceo, pedibus flavis; supra pallide flavus; capite brevi, facie inter oculos vix producta; thorace 
subcylindrico, profunde subcrebre punctato; lateribus obsolete angulatis, piceo-tinctis ; elytris oblongis, 
parallelis, ad apicem vix ampliatis, minute serrulatis, apice obtuso, obsolete irregulariter serrulato, angulo 
postico distincto, breviter dentato; disco piceo-eneo marmorato; utrisque octo- basi nono-seriato- 
punctatis ; interspatiis secundo, quarto et sexto, nec non sutura, costatis ; costa externa ante apicem minus 
distincte elevata. 
Long. 13 lin. 
Hab. Panama, David in Chiriqui (Champion). A single specimen. 
Head short, rotundate; clypeus very short, transverse; interocular space obso- 
letely produced. Antenne robust, equal in length to the head and thorax, the five 
outer joints distinctly thickened; eyes piceous. Thorax transverse, subcylindrical ; 
sides straight and parallel from the base to the middle, thence very slightly converging 
towards the apex, armed just behind the latter with a minute tooth, the anterior 
angle with an oblique obtuse tooth; disc transversely depressed behind, deeply and 
somewhat closely punctured. Elytra oblong, slightly dilated towards the posterior 
angle ; apices conjointly obtuse, the hinder angle distinct; sides minutely, the apical 
margin obsoletely, serrulate ; posterior angle armed with one or two coarser serratures 
than those on the sides; moderately convex, flattened along the suture ; each elytron 
with eight, at the extreme base with nine, regular rows of punctures; the second, 
fourth, and sixth interspaces, together with the suture, costate ; the outer costa less 
distinctly raised before its apex, the apex itself more strongly elevated; apices of 
the coste free. 
The form of the head will at once separate C. breviceps from its allies. 
BIOL. CENTR.-AMER., Coleopt., Vol. VI. Pt. 2, November 1885. hh 
