66 PHYTOPHAGA. 
nearly one half longer than the second. Thorax slightly broader than long, conic ; 
sides nearly straight, obsoletely angulate in the middle ; disc subcylindrical, transversely 
excavated behind the middle, closely rugose-punctate. Elytra parallel, regularly 
rounded at the apex; sides finely serrulate; apical margin narrowly dilated, acutely 
denticulate ; each elytron with ten, the medial disc with nine, rows of punctures; 
second and fourth interspaces rather strongly and equally costate, the eighth less 
strongly elevated, the sixth obsoletely costate at base and apex. 
30. Chalepus digressus. 
Anguste elongatus, parallelus ; subtus niger, nitidus, pectoris medio fulvo; supra opacus, fulvus, capite scutel- 
loque nigris ; thorace transverso; lateribus a basi apicem versus convergentibus, bisinuatis, medio angu- 
latis; disco transyersim convexo, crebre rugoso-punctato, linea discoidali, apice abbreviata, lateribusque 
angustis, nigro-piceis; elytris parallelis, apice obtuse rotundatis; lateribus obsolete serrulatis, margine 
apicali acute dentato ; utrisque decem- prope medium nono-seriato-punctatis ; interspatiis secundo, quarto 
octavoque xqualiter costatis, sexto basi et apice minus fortiter elevato; linea suturali baseos apiceque 
extremo piceo-nigris. 
Long. 3 lin. 
Hab. Mexico, Tuxtla (Sallé). A single specimen. 
Face between the eyes rather strongly produced ; front trisulcate. Antenne robust, 
slightly but distinctly thickened towards the apex; joints cylindrical, the third nearly 
one half longer than the second. ‘Thorax transverse; sides converging from base to 
apex, bisinuate, distinctly angulate in the middle; disc transversely convex, closely 
rugose-punctate. Elytra parallel, obtusely rounded at the apex, lateral margin minutely 
serrulate, apical border rather strongly denticulate ; each elytron with ten, the medial 
disc with nine, rows of punctures; second, fourth, and eighth interspaces equally and 
rather strongly costate, the sixth subcostate at base and apex. 
This species, although very nearly allied to C. amabilis, presents, in addition to the dif- 
ferent coloration, distinct structural differences: thus the thorax is broader, and has its 
lateral margin more distinctly angulate ; the outer costa on the elytron is equal in height 
to the other two, whilst the apical margin is not dilated, and is more strongly toothed. 
31. Chalepus nigripictus. (C. nigripectus, Tab. III. fig. 14.) 
Anguste elongatus, parallelus, niger, nitidus, pectoris medio obscure fulvo; fronte trisulcato; antennis fusi- 
formibus ; thorace subconico, lateribus ante medium constrictis; subcylindrico, pone medium transversim 
excavato, fortiter subcrebre punctato ; fulvo, opaco, vitta lata discoidali lateribusque nigris ; elytris paral- 
lelis, apicem versus vix ampliatis, apice rotundatis, lateribus serrulatis, margine apicali dentibus acutis 
brevibus armato ; utrisque decem- medio nono-seriato-punctatis ; interspatiis secundo, quarto fortiter, sexto 
(basi et apice) octavoque, nec non sutura modice costatis ; fulvis, dimidio postico fere, vitta suturali lata, 
necnon vitta humerali, nigris. 
Long. 3 lin. 
Hab, Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Front deeply trisulcate; interocular space strongly produced, its apex angulate. 
Antenne nearly half the length of the body, robust, fusiform; first and second joints 
