igg MODERN SYSTEM. 



Genus 83. OPILUS. Latr., Leach. Eupoctis. Illiger. 



Palpi securiform: antenntE with the ninth and tenth joints obconic, the 

 last oval, obUquely truncate : eyes not notched : thorax conic-cylin- 

 dric, narrower behind. 



Sp. 1. Op. mollis. Fuscous, villous : base and apex of the elytra and 

 a middle transverse band with the under parts of the thighs yellow- 

 ish gray. Abdomen red. {PL 12. fg. 1.) 



'Notoxus mollis. Fabr. Clerus mollis. Oliv., Marsh. Attelabus mollis, 

 Limi. Opilus mollis. Lafr. 



Inhabits Europe, under the bark of trees and in the wood of decayed 

 willows, eating the larvaj of other insects. 



Genus 34. NECROBIA. Lafr., Oliv., Leach. Dermestes. Linn. 

 Clerus. Gcof., De Gcer, Marsh. Corynetes. Paykull, Fabr. 

 Palpi terminated by an obconic joint : antenna with the three last 

 joints forming an oblong triangulate mass, obtuse both externally 

 and internally. 

 Sp. 1. Nee. rvficollis. Blue-black: thorax and base of the elytra red. 

 Dermestes ruticollis. Linn. Corynetes ruficoUis. Fabr. 

 Inliabits Europe, feeding on decayed animal substances. 



Fam. X. SiLPHiAD.E. LeaeKs Zool. Misc. vol. iii. 

 Antenna gradually thickening towards their extremities, or terminated 

 by a solid or perfoliate clut : elytra covering the greater portion of 

 the abdomen: body oval or parallelopiped. 



SfiRPS 1. — Palpi very distinct: mandibles with their apex entire. 



Genus 85. NECIIOPIIAGUS. Fabr., Oliv., Lam., Leach. Sil- 

 piiA. Linn., De Gcer, Marsh. Dermestes. Geoff. 



Antenna not much longer than the head, terminated abruptly in a per- 

 foliated knob : elytra truncated in a straight line, the external mar- 

 gin not channelled or keeled : body long quadrate. 



Sp. 1. JVar. spinipes. Black: antennas ferruginous at their points: ely- 

 tra with their external margin and a double transverse undulated 

 band of orange: trochanters of hinder thighs produced into a spine. 



Sp. '2. At'cr. Vespillo. {PL 2. fg. 6. a. antenna jnagnijied.) 



Inhabits [lUtrkl fungi and dead animals. 



Genus 86. NECRODES. Wilkinis MSS. Leach. 



Bot/y elongate o\al : thorax orbicular : apex of the elytra obliquely trun-r 

 cate: hinder thighs of the male thicker than the rest. 



Sp. 1. Necr. littoralis. Black : antenna; with the three last joints ferru- 

 ginous: elytra with three elevated lines, the two external ones con- 

 nected by a tubercle : hinder tibia of the male arcuate : the thighs 

 toothed. 



