276 
Mr. H. W. Bate§ 0 ^ Ceramhycidce 
Genus Panton yssus^ nov. gen. 
Allied to NephaliuSy as defined by Lacordaire, but dif- 
fering essentially in the middle and hind femora being 
linear, or nearly linear, with a single long spine exter- 
nally at their apices, as in Ehurodacrys. In Nephalius 
(with which I think Castiale, Pascoe, ought to be incor- 
porated, as it ofibrs precisely the same generic charac- 
ters) , the posterior femora are more or less fusiform, or 
gradually enlarged from the base, and the spines at 
their apices are always two in number; moreover, when 
there is an inequality in the length of these femoral 
spines, it is the interior one which is the longer ; quite 
the opposite of what is seen in Pantonyssus. The head, 
antennae, and sterna offer no differences. The antenni- 
ferous tubercles are united, and form an even elevation 
across the forehead ; the third to sixth or seventh an- 
tennal joints are spined, and the third and fourth are 
grooved and carinate ; the basal joint is concave in front. 
1. Pantonyssus Erichsoni. 
SpJicerion Erichsonii, White, Cat. Longic. Brit. Mus. 
p. 108. 
Elongatus, angustatus, minus convexus, pilis elongatis 
erectis griseis hirsutus ; capite antice, antennis, pedibus, 
apiceque elytrorum nigris ; thorace elongate, inerme, 
supra obsolete quinque-tuberculato et transversim ru- 
gose ; elytris apice truncatis et bispinosis, spina suturali 
brevissima, supra irregulariter punctatis, apice sublaevibus, 
punctis nonnullis asperatis; femoribus valde elongatis, 
linearibus. 
Long. 7-7 J lin. ^ • 
Para.* 
* A second species of this genus is the following 
' Pantonyssus nigriceps, n. sp. 
Elongatus, minus convexus, sparsim flavo -hirsutus, flavo-testaceus, 
capite articuloque basale antennarum nigris. Caput plagiatim punctatuin. 
Thorax oblongus, lateribus rotundatis, supra obsolete 5-tuberculatus, 
interstitiis et lateribus sparsim grosse punctatis. Elytra postice attenuata, 
apice truncata et bispinosa, spina suturali parva, marginali nigra, supra 
sparsim baud profunde punctata, nitida. Femora linearia, leviter fusi- 
formia, spinis apicalibus fuscis. 
Long. lin. <? . 
Hah . — Kio Janeiro (a Dom. Rev. Hamlet Clark lectus, prope Tejuco). 
