BY EDWARD NEWMAN. 38 



Poll, ovata. Prothorax punctatus, obsciirus, disco nigro, lateri- 

 bus cum margine antico late fulms, margine postico tenuissime 

 fulvo : elytra rugose punctata, 4<-lineata, nigra, obscura, pilis 

 nigris tecta: ccetera nigra. (Corp, long. '3 unc. ; lat. '175 

 unc.) 



The above-described species of this somewhat heterogeneous 

 order, were taken by Messrs. Doubleday and Foster in North 

 America in various localities. 



Genus. — Rhipicera, Latreille. 



Rhip. Proserpina. Totafusca, concohr : antenwB W-articula- 

 tce ; caput prothoraxque crebre punctata, lanugine aured brer- 

 tissimd tecta : elytra rugose atque profimde punctata, punctis 

 conjluentibus. (Corp. long. '75 unc. ; lat. '%b unc.) 



This insect has 1 1 joints to the antennae, and in other re- 

 spects it does not agree well with Latreille's genus, Rhipicera. 

 I should not have hesitated a moment about giving it a new 

 designation, with detailed characters, had I not known that 

 another species of similar conformation has been extracted from 

 raw turpentine by Mr. Raddon, and is about to be characte- 

 rized in a descriptive list of turpentine insects, by an abler pen 

 than mine. The species above described I believe to be 

 unique ; it was presented by Mr. Bracy Clark, who received it 

 from Wanborough, State of Illinois, North America. I have 

 thought it best to name the species, as, not having occurred in 

 turpentine, it cannot be included in Mr. Raddon's list. 



Natural Order. — Elaterites, Newman. 



Genus. — Onichodon, Newman. 



Caput pronum, in prothorace receptum : antennae prothorace vix 

 breviores, 1 1 -articulatae extus pedetentim attenuantes : articulus 

 1"'. elongatus paullo incrassatus, 2"\ brevis, caeteri subaequales : 

 OS omnino clausum ; mandibulse validse, cornese, extus convexse, 

 pilosae, apice incurvae, acutse, infra apicem dente magno instructse; 

 maxillarum lacinia submembranacea, subhyalina, rotundata, 

 pilosa ; galea minuta linearis, apice pilosa ; maxipalpi 4-articulati, 

 articulus 1"^ brevis, 2"^ 3"^que paullo longiores, subovati, 4"^ 





