New Genera and Species of Phytophaqa. 339 
punctatis, utrisque infra basin transversim excavatis, lzeete 
purpureis, limbo inflexo leviter concavo. 
Long. 2 lin. 
Hab. Amazons. 
Epistome slightly depressed, subtrigonate, its surface granulose ; 
face broad, its lower portion slightly concave ; forehead impressed 
with a short, longitudinal groove; eyes black, their inner edge 
obsoletely notched; surface of head and thorax finely but sub- 
remotely punctured. Elytra rather more coarsely punctured than 
the preceding parts. 
Genus CuatcorHyMa. 
Corpus breviter ovato-rotundatum aut rotundatum, valde con- 
vexum. Caput in thoracem insertum, perpendiculare ; 
antennis gracilibus, filiformibus, corporis longitudini zqualibus 
aut paullo brevioribus. Zhorax transversus, elytrorum 
latitudini aqualis aut g etiam paullo latior, margine laterali 
inferiori incrassato; supra convexus, interdum gibbosus, 
lateribus rotundatis, plerumque dentatis aut emarginatis, 
rarius simplicibus. lytra irregulariter aut subseriatim 
punctata, seepe tuberculata vel costata, limbo inflexo obliquo 
aut subhorizontali, aut plerumque plano. Pedes subelongati, 
graciles; femoribus posticis subtus unidentatis, unguiculis 
appendiculatis. Prosternum subquadratum, sulcis suturalibus 
inter prosternum et episterna antica obsoletis; episterni 
antici angulo externo antico ad thoracis angulum non pro- 
ducto, 
Type Chalcophyma @ruginosa, mihi, (Ann. and Mag. Nat. Hist. 
1859, p. 125). 
“1. Chalcophyma cretifera. 
Breviter ovato-rotundata, valde convexa, cuprea, subnitida, 
subtus nigra; pedibus obscure rufo-fulvis ; antennis pallide 
fulvis, extrorsum infuscatis; thorace rude rugoso, dorso 
bimamilloso, lateribus bidentatis; elytris rude punctatis, 
rugosis, cretis elevatis brevibus nonnullis longitudinaliter 
dispositis instructis. 
Long. 2 lin. 
Hab. Amazons. 
Head coarsely punctured, face impressed with a longitudinal 
groove, the surface on either side obliquely strigose ; antennz 
equal in length to the body, very slender, filiform. Thorax very 
coarsely rugose-punctate, sides armed about their middle with 
