CHALEPUS. 69 
I have united the two species of Chapuis for the following reasons: the punctu- 
ation of the thorax and the angularity of its sides vary greatly in different individuals, 
and the fulvous vitte on the elytra also greatly vary in length, being sometimes confined 
to a small basal patch. 
V. Elytra each with ten regular rows of punctures. 
1. Second and eighth interspaces costate, entire. 
35. Chalepus hematoderus. (Tab. III. fig. 23.) 
Elongatus, niger ; subtus nitidus, supra opacus; pro- et mesosternis, thorace, scutello elytrorumque plaga basali, 
rufo-fulvis; thorace transverso ; lateribus rotundatis, ad apicem convergentibus ; basi utrinque profunde 
excavata ; disco velutino, pone medium transverso excavato, utrinque ad latus obsolete foveolato ; elytris 
basi lobatis, lateribus parallelis, medio leviter constrictis, irregulariter serrulatis, apice rotundato, breviter 
denticulato; granulosis, utrisque decem-seriato-punctatis ; interspatiis secundo valde, quarto et sexto basi 
et apice, nec non octavo toto, modice costatis. 
Mas. Tibiis anticis intus ante apicem dente acuto armatis. 
Long. 33 lin. 
Hab. Panama, David, Bugaba 800 to 1500 feet, Caldera in Chiriqui 1200 feet, San 
Lorenzo, Volcan de Chiriqui 2000 to 3000 feet (Champion). 
‘Vertex smooth and shining ; front subnitidous, rather strongly produced between the 
eyes, trisulcate ; clypeus subpentangular, rugose, impressed at the apex with two large 
oblique fovee. Antenne half the length of the body, filiform; joints cylindrical, the 
terminal one acute; two lower joints short, equal in length, the first of these thickened, 
submoniliform, the second ovate; third joint rather longer than the preceding two . 
united. Thorax transverse; sides sinuate at the base, then nearly straight to the 
middle, thence gradually converging towards the apex, anterior angle armed with a 
short obtuse tooth; basal margin deeply excavated on either side in order to receive - 
the strongly produced basal lobes of the elytra; above subcylindrical in front and on 
the sides, basal half of disc deeply and transversely excavated ; surface smooth, velvety, 
faintly impressed on the sides with a few large, very shallow and ill-defined fovee. 
Scutellum broader than long, subquadrate. Elytra subelongate, each with the basal 
margin produced into a strong lobe which fits, when at rest, into the corresponding 
basal excavation of the thorax; sides parallel, slightly constricted in the middle, 
irregularly serrulate, the serratures (fine at the base) gradually increasing in size 
towards the hinder angle ; apex rounded, armed with strong acute teeth; upper 
surface convex on the sides, flattened along the suture, coarsely granulose ; each elytron 
with ten rows of round nitidous punctures; the second interspace raised into a strong 
smooth nitidous costa, the basal and apical portions of the fourth and sixth, together 
with the whole of the eighth, also costate*, but less strongly so than the second. Legs 
slender, elongate. 
* In some specimens the basal portion of the fourth, in others the apex of the sixth, interspace is not 
costate. 
