INDEX. 



Abies — Page. 



host of Cryphalus 208 



host of Dendroctonus micans 145 



host of Scolytus 209 



Abies concolor, host of Dendroctonus valens 156 



Alnus, host of Trypophloeus 209 



Amphicranus, armature 176 



Amphicranus fastigatus , armature 177 



Anisandrus dispar, paired species 211 



Anisandrus pyri, paired species 211 



Aphanar thrum, distribution „ 210 



Apion, head 177 



Apionidse, position in Rhynchophora 167 



Balaninus, head 177 



Betula, host of Scolytus 209 



Blastophagus, Dendroctonus piniperda and D. minor referred to it 3 



(Bostrichus) micans — 



included in Dendroctonus 3 



synonym of Dendroctonus micans 5 



Bostrichus scolytus, described by Fabricius 220 



Bothrosterninse, in key to subfamilies 225 



Cactopinus— 



armature 176 



epistoma 175 



Camptocerinae, in key to subfamilies 225 



Carabidee, position in Coleoptera 167 



Carphoborus — 



connecting galleries 203 



Dendroctonus minimus referred to this genus 3 



eggs 197 



reproductive organs 195 



Celtis, host of Scolytus 209 



Gha'puisinse, in key to subfamilies 225 



Coccotrypes, secondary sexual characters 195 



Coptonotinae, in key to subfamilies 225 



Corthylinse, in key to subfamilies 224 



Corthylus — 



general habits 198 



host plants 209 



Cosmoderes, head 177 



Crossotarsus — 



food habits 199 



larvae 197 



reproductive organs 188, 190 



social gallery 202 



Crossotarsus lecontei, probably similar food habits to Webbia dipterocarpi 224 



Cryphalinae, in key to subfamilies 224 



25153—21 2 233 



