CLASS V. INSECTA. 205 



Genus Hypera. Cermar. 

 Sp. 1. Cur. uigrorostris. 



Genus Thylacites. Germar. 

 Sp. 1. Cur. incauus. 



Division II. — Head not gradually prolonged into a rostrum. Tani not 

 ipoitisy beneath. Antenna Jbrming a solid t?iuss, ihorter or nvl ntuch 

 longer than t/te head. 



Fam. XXXVIII. BosxRiciDiE. Leach. 



BosTRiciNi. Latreille. 



Body cylindric or globose : head globose : tibi<2 compressed, the ante- 

 rior ones deututed: antenna eight- or ten-jointed; the lirstjoint elon- 

 gate, the tivo or three last joints forming a large mass: pulpi \cry 

 small, generally conic, rarely filiform. 



Stirps 1. — Club of the antenn<£ commencing before the ninth joint. 



Genus 216. HYLURGUS. Latr., Leach. Ips. Be Ccer, Mursfi. 



ScoLYTUs. Oliv. 

 Tarsi with the penultimate joint bifid : antenms with the club com- 

 mencing at the eighth joint, very little or not at all compressed. 

 Sp. 1. Hyl. Piniperda. 



Ips Piniperda. Marsh. Hylurgus Piniperda. Latr. 

 Inhabits this country, perforating the l)ark of the pine. 



Genus 217. TOMICUS. Latr., Leach.. Dbrmestes. Linnam, 

 Ips. Be Geer. Bostrichus. Fabr., Pat/k. Scolytus. Oliv, 



Tarsi with entire short joints : U7itenn(e with the club nuich compress- 

 ed, beginning at the seventh joint, distinctly annulated : body not 

 linear. 



Sp. 1. Tom. Tj/pograpJms. 



Dermcstcs Typographus. Linn. Ips Typographe. De Ccer. Bostrichus 

 Typographus. Fabr., Puyk. Ips Typographus. Marsh. Scolytus Ty- 

 pographus. Oliv. Tomicus Typographus. Latr., Leach. 



Inhabits Europe, under the bark of trees, which it gnaws into various 

 labyrinth-like passages. 



Genus 218. PLATYPUS. Herbst, Latr., Leach. Bostrichus. UcU- 

 zcig., Fabr. Scolytus. Panz. 

 Tarsi with entire long joints: antennre with the club miicli comprcftsc;!, 

 commencing at the sixth joint : annulations not cr but tlighlly di- 

 stinct : budy Hnear. 

 Sp. 1. Pla. cyHndriciis? 



