206 MODERN SYSTEM. 



Platypus cylindricus. Herbst, Latr. Bostrichus cylindricus. Tuhr. 

 Scolytus cylindricus. Oliv. 



Discovered to be a native of Britain by Mr. D. Bydder, who took 

 it in the New Forest of Hampshire from beneath the bark of trees. 



Stirps a.— Antenna with the club beginning at the ninth joint. 



Genus 219. SCOLYTUS. Geoff., Schaffer, Lair., Oliv., Leach. 

 Tarsi with the last joint but one bifid : antenna with the club com 



pressed, obovoid, the apex rounded. -*■ 

 Sp. 1. Sco. Destructor. 

 Scolytus Destructor. Oliv., Latr. Ips Scolytus. Marsh. Hylesimis 



ScolyUis. Fubr. 

 Inhabits beneath the bark of the elm. 



Genus 220. HYLESINUS. Fabr., Latr., Uach, 



Tarsi with their penultimate joint bifid : antenna with the club little or 



not compressed, ovoid, the extremity pointed. 

 Sp. 1. H'//. crenatiis. 



Ilvlcsiuus crcnatus. Fair., L.atr. Scolytus crenatus. Oliv. 

 Ldiabits Europe, imder the bark of trees. 



Fam. XXXIX. Cisid;e. Leach. 



Boch/ ovoid or oblong; in some depressed, in others linear: palpi fili- 

 form or bent at their extremities : antemue ten-jointed, increasing 

 towards tlieir extremities or terminated by a perfoliated mass. 



Stirps 1. — Antenna; with the club three-jointed, perfoliated. 



Genus 221. CIS. J^atr., Leach. 

 Antenna twice as long as the head : bodj/ oval, depressed. 



Sp. 1. Cis Boleti. 



Dermestes Boleti. Scopoli. Anobium Boleti. Fabr., Illig., Pai/k. Ano- 



bium bidentatum. Oliv. Ptinus Boleti. Marsh. 

 Inhabits the Boletus versicolor. 



Stirps 2. — Antenna with a nearly globose two-jointed club. 

 Genus 222. CERYLON. Latr., Leach. 



Body elongate : thorax quadrate, with the hinder margin straight, con- 

 tiguous with the elytra : abdomen not pedunculated, 



Sp. 1. Ccr. histeroides. 



Lyctus histeroides. Fabr., Puijh., Fanz. Rhyzophagus histeroides. 

 Herbst. Cerylon histeroides. Latr. 



Inhabits Europe, beneath the bark of trees. 



