CLASS V. INSECTA. 
205 
Genus Hypera. Gerrnar. 
Sp. 1. Cur. nigrorostris. 
Genus Thylacites. Germar. 
Sp. 1. Cur. incanus. 
division II. — Head not gradually prolonged into a rostrum. Tarsi not 
spongy beneath. Antenna forming a solid mass, shorter or not much 
longer than the head. 
Fam. XXXVIII. Bostricid.e. Leach. 
OosrracrKi. Latreille. 
& 0 dy cylindric or globose : head globose : tibia: compressed, the ante- 
rior ones dentated : antenna eight- or ten-jointed; the first joint elon- 
gate, the two or three last joints forming a large mass : palpi very 
small, generally conic, rarely filiform. 
Srir.ps l . — Club of the antenna:, commencing before the ninth joint. 
Genus 216. HYLURGUS. Lair., Leach. Ips. He Geer , Marsh. 
-Scot. YTL’S, Oliv. 
rp 
"rsi with the penultimate joint bifid : antenna: with the club com- 
meneing at the eighth joint, vers- little or not at all compressed, 
j I 1 - 1- Hyl, Piniperda. 
I’s Piniperda. Marsh. Hylurgus Piniperda. Lair. 
inhabits this country, perforating the bark of the pine. 
Genus 217'. TOMICUS. Latr., Leach.. Dermestes. Linnaus 
Ips. He Geer. Bustrichus. Fabr., Payk. Scolytus. Oliv 
T “rsi with entire short joints : antenna with the club much compress- 
ed, beginning at the seventh joint, distinctly annulated : body not 
Sr" 
j j 1, P Tom. Typographus. 
ennestes Typographus. Linn. Ips Typographe. De Geer. Bostrichus 
typographus. Fabr., Payk. Ips Typography. Marsh. Scolytus Ty- 
p P°Sf a phus. Oliv. Tomicus Typographus. Latr., Leach. 
mbits Europe, under the bark of trees, which it gnaws into various 
mbyrinth-like passages. 
Genus 218. PLATYPUS. Herbs/, Latr., L.each. Bostriciics. Hell - 
j, trig., Fabr. Scolytus. Pam. 
ars ‘ w 'th entire long joints : antenna with the club much compressed, 
c °mmencing at the sixth joint : annulations not or but slightly di- 
stinct : body linear. 
' ^ * ■Pta. eylindrieus ? 
