Mr. J. S. Baly on the Phytophaga. 459 



culatis ; tibiis posticis dorso canaliculars, apice spina brevi armatis ; 

 tarsorum ejusdem pans articnlo basali tibiae apici inserto. 

 Type Camcena tibialis, Baly. 



Camcena tibialis. (Plate XXI. fig. 7.) 

 C. oblongo-ovata, modice convexa, fulva, nitida ; tibiis, tarsia antennis- 

 que (his apice albis) nigris; elytris nigris, metallico-micantibus. — 

 Long. 3 i lin. 

 Hub. Brazil. 



Oblong-ovate, moderately convex, fulvous, nitidous ; tibia?, tarsi, and 

 antenna? black, three apical joints of the latter white. Head short, 

 trigonate ; eyes oblong, black ; antenna? subfusiforni, nearly as long as 

 the body, basal joint pale fulvous beneath. Thorax more than twice 

 as broad as long ; sides narrowly margined, nearly straight, narrowed 

 from base to apex ; anterior angles slightly produced, obtuse, incrassate ; 

 disk swollen, transversely grooved on side just within the lateral border. 

 Elytra ovate, broader than the thorax, finely punctured. 



Genus Hedonia. (Details, Plate XXI. fig. 6.) 

 Corpus ovatum, modice convexum. Caput exsertum ; facie fere perpen- 

 diculari, subtrigona, oculis sat magnis, proniinulis, ovatis, integris ; 

 antennis filiformibus, gracilibus, articulis primo incrassato, secundo 

 brevi, tertio illo plus duplo longiore. Elytra breviter ovata, anguste 

 marginata, tenuiter pimctata (sulco utrinque ante latus ad basin 

 recurvato). Thorax transversus, basi transversim sulcata. Pedes .- 

 femoribus posticis incrassatis ; tibiis j)osticis apice dente brevi armatis ; 

 tarsorum ejusdem paris articulo basali ad apicem tibia? inserto. 

 Type, Medonia Batesii, Baly. 



Hedonia Batesii. (Plate XXI. fig. 6.) 

 M. oblongo-ovata, modice convexa, flavo-fulva, nitida ; vertice, thorace, 

 femoribus posticis (horum basi margineque inferiore exceptis) elytro- 

 rumque dimidio postico nigris. — Long. 3^ lin. 

 Hab. Ega, Upper Amazons. 



Oblong-ovate, moderately convex, nitidous. Head nearly inipunc- 

 tate, labrum piceous ; antenna? nearly as long as the body, third joint 

 twice as long as the second ; epistome thickened. Thorax nearly three 

 times as broad as long ; sides oblique, narrowly margined ; anterior 

 angles obliquely truncate, incrassate ; disk convex, impimctate, im- 

 pressed just before the basal margin with a deep transverse groove, 

 which curves abruptly backwards to the base of the thorax, at either 

 end, a short distance within the lateral* border. Elytra subovate, nar- 

 rowly margined, very minutely punctured. 



