270 Mr. II. W. Bates on Ceramhycidce 



Genus Pantonyssus, nov. gen. 



Allied to Nephalivs, 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 Casfiale, Pascoe, ought to be incor- 

 porated, as it ofiers 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 

 thei'e 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, 

 antenna?, 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. 



Sphcerion Erichsonii, White, Cat. Longic. Brit. Mus. 

 p. 108. 



Elongatus, angustatus, minus convexus, pilis clongatis 

 erectis griseis hirsutus ; capite antice, antennis, pedibus, 

 apiceque elytrorum nigris ; thorace elongate, inerme, 

 supra obsolete quinque-tuborculato et transversim ru- 

 gose ; elytris apice truncatis et bispinosis, spina suturali 

 brevissima, supra irregulai-itor punctatis, apice subla3vibus, 

 punctis nonnuUis asperatis; femoribus valde elongatis, 

 linearibus. 



Long. 7-7^ lin. c^ . 



Hah. — Parii. * 



* A second species of this genus is the following :— 

 Pantonyssus nigriceps, n. sp. 



Elongatiifi, minus convexus, sparsim flavo-hirsutus, flavo-testacons, 

 cajjite articuloqne basale antennariim nigris. Caput plagiatim piinctatuni. 

 TlKjrax oblongus, lateribus rotuudatis, supra obsolete S-tuberculatus, 

 interstitiis et lateribus sparsim grosse jmnctatis. Elytra postice attenuala, 

 apice truucata et bispiuosa, spina suturali ])ars'a, marginali nigra, supra 

 Bi>arsim hand profunde punctata, nitida. Femora linearia, leviter fusi- 

 formia, spinis apicahbus fuscis. 



Long. 6i lin. <J . 



Ilab. — llio Janeiro (a Dom. Rev. Hamlet Clark lectus, prope Tejuco). 



