72. PHYTOPHAGA. 
middle, thence obliquely converging and sinuate to the apex, apical angle armed late- 
rally with a very short acute tooth; upper surface transversely convex, excavated 
transversely behind the middle, coarsely and irregularly punctured. Elytra parallel, 
serrulate on the sides, rounded at the apex, the apical margin armed with a number of 
strong acute teeth; each elytron with ten regular rows of punctures, the second, fourth, 
and eighth interspaces costate, the apex of the sixth subcostate. 
ev: Ve 
. wb, a. ower ; 
41. Chalepus horni. <3- we Sae OF hornvanve Weise [Gl 
Elongatus, parallelus, niger, nitidus ; femoribus anticis puncto basali thoraceque rufo-fulvis ; hoc subcylindrico, 
disco postico excavato, rude et fortiter rugoso-punctato, lateribus angulatis; elytris parallelis, apice 
regulariter rotundatis, tenuiter serrulatis; utrisque decem-seriato-punctatis ; interspatiis secundo, quarto 
octavoque costatis, hoc minus elevato; rufo-fulvis aut fulvis, vitta suturali dimidiaque apicali nigris. 
Long. 3 lin. 
Hab. Mexico, Cordova, Juquila, Toxpam (Sad/é). 
Vertex and front smooth, trisulcate, a small indistinct patch just above the antenne 
piceo-rufous ; interocular space rather strongly produced. Antenne less than a third the 
length of the body, filiform, slightly thickened towards the apex; seventh joint short, . 
narrower than either the sixth or eighth. Thorax subcylindrical; sides distinctly angu- 
late, nearly straight and parallel from the base to the middle, thence obliquely converging 
towards the apex; upper surface subcylindrical, rather deeply excavated transversely 
on the hinder disc, closely and coarsely rugose-punctate. Elytra parallel on the sides, 
regularly rounded at the apex, the outer margin finely serrulate, the serratures scarcely 
stronger at the apex than on the sides; each elytron with ten rows of punctures, the 
second, fourth, and eighth interspaces (the last less strongly) costate. 
The apical black patch varies greatly in extent; in some specimens it covers the 
hinder disc, in others it is confined to the extreme apex. 
42. Chalepus subparallelus. 
Elongatus, subparallelus ; subtus cum capite niger, nitidus ; supra subopacus, fulvus; thoracis lateribus vittaque 
discoidali, scutello elytrorumque linea suturali, nigris; thorace crebre et fortiter punctato, disco postico 
transversim excavato, lateribus subangulato-rotundatis ; elytris anguste elongato-ovalibus, apice rotun- 
datis, angulo suturali leviter subangulato-emarginatis; margine laterali tenuiter, apicali distincte, serrulatis ; 
utrisque decem-seriato-punctatis ; interspatiis secundo et quarto modice, sexto basi et apice, octavoque 
toto minus distincte, costatis. 
Long. 33 lin. 
Hab. Mexico, Juquila (Sad/é). 
Vertex and front irregularly grooved ; interocular space strongly produced. Antenne 
about one third the length of the body, filiform, slightly thickened towards the apex ; 
joints cylindrical, two basal ones short, equal, the third nearly equal in length to the 
preceding two, subcylindrical. Thorax transverse ; sides nearly straight and very slightly 
converging behind the middle, thence obliquely converging and slightly rounded to the 
apex, notched at the anterior angle, the latter armed laterally with a very short acute 
