of the Amazon Valley. 
307 
Long. lin. S ? • 
Hah . — Eiver Tapajos, Ega, St. Paulo^ Upper 
Amazons. 
Genus Phoemesium. 
Thomson, Syst. Ceramb. p. 217 ; Lacord. Gen. viii. 335. 
Differs from all the preceding genera of Ihidionince in 
the short antennae, scarcely longer than the body in the 
$ , shorter in the $ . The third and fourth antennal 
joints and the tibim are carinate ; the femora are clavate, 
shorter than the elytra, and bidentate at the apex. The 
carinae of the antennae are sometimes very faint, and 
scarcely perceptible. The third antennal joint is fusi- 
form in the A • 
1. Phormesium melanodacrys. 
Ihidion melanodacrys ^ White, Cat. Longic. Brit. Mus. 
p. 235. 
Parvulum, flavo-testaceum, elytris singulis guttis 
duabus nigris marginalibus, prima pone humerum, se- 
cunda ad medium, antennis articulo tertio incrassato.^^ 
(White.) 
Long. 24 lin. S ? • 
Hah . — Eiver Tapajos. 
All the antennal joints are carinate from the third to 
the tenth. The black guttle of the elytra are linear, 
lateral, and oblique; the surface is polished, and almost 
impunctate. 
2. Phormesium alhinumy n. sp. 
Elongatum, angustum, nitidum, longe setosum, flavo- 
testaceum ; elytris fasciis duabus obliquis testaceo-albis, 
una versus basin (suturam hand attingente) , altera apud 
medium ; thorace medio tri-tuberculato, polito ; elytris 
sinuato-truncatis, extus spinosis ; antennis vix perspicue 
carinatis. 
Long. 3 lin. $ . 
Hah . — Eiver Tapajos. 
