Pro ik ee 
82 PHYTOPHAGA. 
longer, its apex subacute. Thorax transverse, about one third broader than long at the 
base ; sides slightly rounded and converging from the base to the apex, the anterior angle 
with a short lateral tubercle; basal margin deeply excavated on either side the medial 
lobe ; transversely convex, rather- deeply excavated transversely on the hinder disc 
immediately in front of the basal lobe; surface covered with large fovex, shallow on 
the sides, more deeply impressed on the disc. Elytra subelongate, strongly lobed at 
the base, parallel, very feebly dilated towards the apex, the latter entire, and regularly 
rounded ; lateral margin finely, its hinder third, together with the apical border, rather 
coarsely, serrulate; above convex on the sides, flattened along the suture ; each elytron 
with ten, at the extreme base with eleven, regular rows of large deep punctures, the 
second interspace strongly, the eighth, together with the extreme apex of the fourth 
and the basal fourth of the sixth, moderately costate; each elytron with an irregular 
fulvous patch, covering the humeral callus, and extending downwards from the base 
nearly to the middle of the disc. 
2. Sutural angles of the elytra conjointly emarginate. 
59. Chalepus amplipennis. (Tab. III. fig. 17.) 
Elongatus, postice ampliatus ; subtus cum capite niger, nitidus, pectoris medio femoribusque basi fulvis ; supra 
subopacus, fulvus aut rufo-fulvus; capite inter oculos antrorsum valde producto, et antice plaga fulva 
ornato; antennarum articulis compressis, in mare dorso cristatis; thorace quam longiori vix latiori, 
conico, lateribus subangulatis, disco medio depresso, utrinque toruloso, velutino, lateribus vittaque discoidali 
 nigris; scutello nigro; elytris a basi apicem versus modice ampliatis, apice rotundatis, sutura conjunctim 
subquadratim emarginatis ; limbo distincte explanato, serrato; dorso deplanatis; utrisque decem-, basi 
extrema undecim-punctatis; interspatiis secundo valde, sexto basi nec non octavi dimidio antico medio-— 
criter, costatis ; fulvis, dimidio postico, nec non linea suturali, nigris. 
Var. A. Elytris rufo-fulvis, linea suturali nigra. 
Long. 4 lin. 
Hab. Panama, Volcan de Chiriqui 2500 to 6000 feet (Champion). 
Interocular space very strongly produced, opaque, its hinder half faintly grooved on 
either side, its anterior portion obscure fulvous, its medial line with a slightly raised 
longitudinal ridge. Antenne half the length of the body, compressed, tapering from the 
sixth joint to the apex; the third joint to the ninth cristate in the male, less distinctly 
so in the female ; two lower joints short, equal, the first thickened, submoniliform, the 
second subovate, the third subcordate, and equal in length to the preceding two, the 
fourth and following ones to the tenth nearly equal in length, each distinctly shorter 
than the third. Thorax rather broader than long at the base, conic; sides notched just 
in front of the posterior angle, slightly but distinctly angulate just beyond the middle, 
thence obliquely converging to the apex, the anterior angle armed with an. obtuse lateral 
tooth ; above opaque, the sides abruptly deflexed, coarsely foveolate-punctate, the disc 
depressed, its hinder half broadly excavated; surface opaque, irregularly and feebly 
foveolate-punctate, the medial line with a faintly impressed narrow longitudinal groove ; 
