and Species of Phytophagous Beetles. — 41 
equal in length to the second, fourth twice as long as the third. 
Thorax one half as broad again as long; sides diverging from 
the base to beyond the middle, thence rounded and converging 
to the apex ; disk finely but distinctly punctured. 
Fam. Hispide. 
Cephaloleia gracilis. 
Filiformis, subdepressa, nigro-picea, subnitida, minute granulosa, 
antennis basi, pedibus, thoracis lateribus elytrorumque plaga 
basali rufo-brunneis ; thorace subquadrato, foveolato-punctato ; 
elytris elongatis, apicem versus attenuatis, apice late truncatis, 
sat fortiter punctato-striatis, interspatiis basi et ad latera con- 
vexiusculis, singulatim vitta alba, basi et apice abbreviata, ornatis. 
Long. 2 lin. 
Hab. Amazons. 
Face and front concave, coarsely punctured ; five lower 
joints of antennee obscure rufo-piceous, the rest black. Thorax 
scarcely broader than long ; sides straight and parallel, slightly 
converging towards the apex; anterior angles very obtusely 
rounded, the hinder angles acute; basal margin subangulate- 
emarginate on either side; median lobe only slightly produced, 
obtusely rounded; upper surface transversely convex, im- 
pressed with large round punctures, a longitudinal space on 
the middle disk impunctate; extreme lateral margin rufo- 
brunneous. Scutellum obscure piceous. Elytra elongate, 
slightly wider at the base than the thorax; basal margin 
oblique, the humeral angle distinct ; sides straight and paral- 
lel, slightly converging towards the apex, the latter broadly 
truncate. 
Cephaloleia subdepressa. 
Elongato-ovata, subdepressa, castanea, subnitida, pedibus obscure 
fulvis, antennis (articulis basalibus tribus exceptis) nigris; thorace 
sat fortiter punctato, piceo, lateribus castaneis; elytris ovatis, 
distincte punctato-striatis, interspatiis minute granulosis, ad latera 
convexiusculis, pone scutellum leviter transversim rugulosis. 
Mas abdominis segmento anali concayo-emarginato. 
Fem. abdominis segmento anali rotundato, integro. 
Var. A. elytris plus minusve piceo tinctis. 
Long. 13 lin. 
Hab. Banks of the Amazon. 
Face distinctly but not strongly punctured. Thorax about 
a third broader than long at the base; sides straight and 
nearly parallel in the ¢, less parallel in the ?, rounded at 
the apex in both sexes; basal margin deeply concave-emargi- 
