44 PHYTOPHAGA. 
submarginali baseos, fascia interrupta, vix ante medium posita, apiceque late (hoc interdum metallico- 
tincto) nigris. 
Var, A. Elytrorum fascia obsoleta. 
Long. 43-5 lin. 
Hab. Nicaracva, Chontales (Belt). 
Body elongate, broadly wedge-shaped. Front stained with piceous, rugose-punctate, 
armed between the antenne with a minute tooth. Antenne nearly three fourths the 
length of the body, slender ; the third to the seventh joints compressed, cristate. Thorax 
scarcely broader than long at the base; sides nearly straight behind the middle, con- 
verging and sinuate between the latter and the apex, the apical angle armed with an acute 
tooth; transversely convex, slightly but distinctly excavated on the hinder disc, closely 
and coarsely punctured. Scutellum narrowly oblong, truncate, sinuate on the sides, 
Elytra rather broader than the base of the thorax, broadly wedge-shaped ; the outer limb 
broadly dilated, the dilatation commencing at the shoulder and regularly increasing to 
the posterior angle, the latter broadly rounded, the angle itself obsolete; apices rounded, 
conjointly quadrate-emarginate at the suture, the sutural angle armed with a stout 
acute tooth ; lateral margin entire, the apical margin finely serrulate; the dilated limb 
impressed with a number of deep transverse grooves, their direction following the 
curvature of the outer border, on the sides being horizontal, those near the hinder 
angle oblique, and those at the apex perpendicular; each elytron with ten, at the 
extreme base with eleven, rows of deep punctures; the sutural margin and the fourth 
interspace costate. Legs slender, elongate. 
21. Cephalodonta fraterna. 
Elongata, postice valde ampliata, depressa ; subtus nitida, nigra; pectoris medio, femoribus, nec non abdominis 
basi, fulvis; supra subnitida, fulva, capitis vertice antennisque compressis nigris; thorace subconico, late- 
ribus bisinuatis, anguste piceo marginatis, rugoso-punctato, vitta discoidali nigra; elytris cuneiformibus ; 
lateribus a basi apicem versus valde ampliatis, apice rotundatis, ad suturam late conjunctim emarginatis; 
angulo suturali acuto, angulo postico dente brevi armato ; fortiter seriatim punctatis, sutura interspatioque 
quarto costatis; limbo ampliato, sulcis numerosis transversis impresso; utrisque vitta brevi submarginali 
baseos nigra; apice late purpureo-nigro, metallico micanti. 
Long. 43 lin. 
Hab. Nicaragua, Chontales (Beit). 
So similar in form, sculpture, and coloration to C. ampliata that it is only neces- 
sary to point out the distinctive differences:—the thorax is narrower, rather more . 
conical, and distinctly bisinuate on the sides; the elytra are more broadly dilated behind 
the middle, the posterior angle being armed with a small tooth, the apical margin is 
more broadly emarginate at the suture, and the sutural angle, although acute, is not 
produced into a distinct tooth. 
22. Cephalodonta ferox. (Tab. III. fig. 1.) 
Elongata, subparallela, fulva, nitida ; pectoris lateribus, abdomine, pedibus elongatis antennisque, nigris ; thorace 
