240 THE SCOLYTID BEETLES. 



Dryocates— Page. 



hosts 209 



reproductive organs 192-195 



Dryoca'tcs autographus, paired species 211 



Dryocxtes septentrionis, paired species 211 



Eccoptogaster, described by Herbst 220 



Eccoptopterus, armature 176 



Erineophilus schwarzi, reproductive organs 192 



Ernoponis^ reproductive organs 194 



Fagus, host of Scolytus 209 



Fraxinus, host of Hylesinus and Pteleobius 209 



Genyocerinae, in key to subfamilies 225 



Gnathotrichus, host 209 



Hexacolinte, in key to subfamilies 225 



Eicoria, host of Scolytus 209 



Hopkins, A. D. — 



paper, "Preliminary Classification of the Superfamily Scolytoidea " . . 165-232 



paper, "The Genus Dendroctonus" 1-164 



Hylastes — 



head 177 



host 209 



types of genera 221 



Hylesinus — 



abdominal spiracles 182 



abdominal sternites 182 



host 209 



{Hylesinus) minimus — 



included in Dendroctonus 3 



synonym of Carphohorus minimus 5 



{Hylesinus) minor, included in Dendroctonus 3 



Hylesinus — 



nuptial chamber 202 



reproductive organs 188, 192, 195 



Hylocurus, armature 176 



Hylurgops — 



abdominal spiracles 182 



head 177 



Hylurgops glahratus, paired species 211 



Hylurgops pinifex, paired species 211 



Hylurgus, host plant 209 



Hylurgiis minor, synonym of MyelopMlus minor 5 



Hylurgus obesus, historical 3 



Hylurgus rufipennis, historical 3 



Hyorrhynchinse, in key to subfamilies 225 



Hypoborus — 



distribution 210 



legs 179 



Hypothenemus — 



antennal club ^ 173 



antennal funicle 171 



distribution 210 



elytra 179 



hosts 209 



