203 
MODERN SYSTEM. 
Genus 226. SILVAN US. La'tr., Leach. Tenebrio. He Geer. 
Dermestes. Fubr., Pam. Ips. Olivier. Colydium. Payh., 
Herbst. Corticaria. Marsham. 
Antenna with the second and following joints to the eighth joint nearh 
equal. 
Sp. 1. Sil. frumentarius. . . 
Colydium’ frumonturium. Panzer. Corticaria frumentana. Marsn- 
Silvanus frumentarius. Lair., Leach. 
Inhabits damp cellars in old wood and paper. 
Stirps 3.— Antenna eleven-jointed. Mandibles prominent or exserted. 
* Mandibles small Body long and linear. 
Genus 227. LYCTTJS. Vabr., Payk., Leach. 
Antenna with a two-jointed club : thorax long and linear. 
Sp. 1 . Lyc. oblongus. . 
Lyctus oblongus. Latr., Leach. Lyctus canaliculatus. Fabr. Ips ot>- 
longus. Olio. Bitoma unipunctata. Herbst. Corticaria .oblonga- 
Mars ft > 
Inhabits old wood. 
** Mandibles large. Body elongate, much depressed, nearly equally 
broad. 
Genus 223. TIIOGOSITA. Fabr., Oliv., Illig., Latr., Lam., Leach . 
Thorax almost quadrate, separated from the abdomen by a remarkable 
interval : antenna monilifonn, shorter than the thorax, compressc 
towards the apex : labrtrn exserted, coriaceous, small, hairy in fron • 
Sp. 1 . Tro. mauritanica. 
Tenebrio mauritanicus. Rossi, Marsh. Trogosita caraboides. iaW-> 
IUig., Payk ., Herbs/., Latr. Trogosita mauritanica. Oliv., Leach. 
Inhabits Europe, under stones on the banks of rivers. 
Ram. XLT. Pryonid.e. Leach. 
Lip much widened at its extremity, cordiform : body elongate : antenn t 
long, generally inserted in a notch in the eyes: lab rum very small 0- 
almost none. 
Genus 220. PIUON US. Geoff., Fabr., Olir., Latr., Leach. 
Thorax with the sides gently sloping, dentated : antenna serrated, a h 
tie shorter than tile body; of the male twelve, of the female ele'C 11 
jointed. 
Sp. 1. Pri. coriarius. .. 
Cerambyx coriarius. Linn., Marsh, Prionus coriarius. Latr., Jta ■> 
Oliv., Leach. 
Inhabits old trees; Hies in the evening. 
