INDEX. 241 



Hypoihenemus — Continued. Page. 



legs 179 



posterior wings 180 



secondary sexual characters 195 



size 175 



social habits 200 



types of genera 221-222 



Hypothenemus miles, armature 176 



Ipidse, in key to families 224 



Ipinse, in key to subfamilies 224 



Ips — 



armature 176 



brood galleries 203 



galleries 201 



hosts 209 



nuptial chamber 202 



reproductive organs 188, 192, 195 



social habits 200 



Junipenis, host of Monarthrum and Corthyhis 209 



Larix — 145 



host of Dendroctonus micans 145 



host of Dendroctonus pseudotsugse 68 



host of Dendroctonus simplex 68 



host of Dendroctonus valens 68 



Larix laridna — 



host of Dendroctonus 79 



host of Dendroctonus simplex 120, 156 



Larix ocddentalis — 



host of Dendroctonus 79 



host of Dendroctonus pseudotsugse 125 



Lepisomus, types of genera 222 



Liparthrum, distribution 210 



Lymantor, reproductive organs 192, 195 



Micracinee, in key to subfamiUes 224 



Micrads — 



legs 179 



pupal cell 204 



reproductive organs 188 



Monarthrum — - 



armature 176 



host 209 



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



Phlceoborinse, in key to subfamilies 225 



Phlceoborus — 



legs 179 



size 175 



Phloeophthorus , nuptial chamber 202 



Phlososinus — 



food plants 199 



nuptial chamber 202-203 



Phloeotribinee, in key to subfamilies 225 



Picea, host of Dendroctonus micans 145 



