INDEX OF HOST TREES 



257 



Cypress, Monterey {continued) 

 in cones or seeds — 

 cone moths — ■ 



Heinrichia macro car -pana, 23 



Laspeyresia cupressana, 23 

 in smaller limbs, twigs, or trunk- — ■ 

 aphids — 



Cinara spp., 57 

 bark moth, Laspeyresia cupressana, 53 

 flatheaded borers — 



Anthaxia aeneogaster, 47 



Chrysobothris nixa, 47, 190 

 mealybugs — 



Pseudococcus ryani, 66 



Pseudococcus sequoiae, 66 

 scales — 



Diaspidiotus ehrhorni, 66 



Diaspis carueli, 66 



Ehrhornia cupressi, 66 



Xylococculus macrocarpae, 66 

 twig beetle, Phloeosinus spp., 39 

 in wood — 



flatheaded borer, Trachykele blondeli, 190 

 horntails — 



Sir ex aerolatus, 201 



Sir ex behrensii, 201 

 roundheaded borer, Opsimus quadrilinea- 



tus, 47 

 under bark of large trunk or branches — 

 bark beetles — 



'^Phloeosinus cristatus, 168 



■■'Phloeosinus cupressi, 168 

 flatheaded borer, Chrysobothris nixa, 190 

 roundheaded borers — 



Atimia maritima, 176 



Phymatodes nitidus, 176 

 Douglas-fir (Pseudotsuga taxifolia)- — 

 in cones or seeds — 

 cone moths — 



Barbara colfaxiana, 21 



Barbara colfaxiana color adensis, 21 



Barbara colfaxiana taxifoliella, 21 



Barbara ulterior ana, 21 



Dioryctria abietella, 22 



Eupithecia togata spermaphaga, 22 

 seed chalcid, Megastigmus spermotrophus, 



26 

 in roots of seedlings — 



carpenter ant, Camponotus spp., 34 

 maggot, Hylemya cilicrura, 31 

 weevil, Brachyrhinus ovatus, 29 

 in smaller limbs, twigs, or trunk— 

 aphids — 



Cinara spp., 57 

 bark moth, Laspeyresia laricana, 53 

 chermes, Chermes cooleyi, 58 

 flatheaded borers — 



Anthaxia aeneogaster, 47 



Chrysophana placida, 47 

 roundheaded borers — 



Callidium pseudotsugae, 47 



Callidium Vancouver ense, 47 



Neoclytus muricatulus, 47 



Opsimus quadrilineatus, 47 



Phymatodes hardyi, 48 



Poliaenus oregonus, 48 

 scale, Diaspidiotus ehrhorni, fi6 

 twig beetles — ■ 



Carphoborus sp., 38 



Pityokteines elegans, 38 



Pityophthorus pseudotsugae, 38 



Pityophthorus spp., 38 

 twig moths — - 



Dioryctria abietella, 49 



Dioryctria zimmermani, 49 

 twig weevil, ''-'Cylindrocopturus furnissi, 



44 

 in wood — 



ambrosia beetles — 



Gnathotrichus aciculatus, 185 



Gnathotrichus retusus, 185 



Gnathotrichus sulcatus, 185 



Platypus loilsoni, 183 



Trypodendron bivittatum, 186 



Trypodendron cavifrons, 186 



Trypodendron ponderosae, 186 



Douglas-fir (continued) 

 in wood — (continued) 

 flatheaded borers — 



Buprestis adjecta, 189 



Buprestis aurulenta, 188 



Buprestis langi, 188 



Buprestis nuttalli, 189 



Buprestis nuttalli laeviventris, 189 



Buprestis ruticorum, 189 



Chalcophora angulicollis, 187 



Chrysobothris breviloba, 191 



Chrysobothris carinipennis, 191 



Chrysobothris dolata, 191 



Chrysobothris pseudotsugae, 191 



Chrysobothris sylvania, 191 



Chrysobothris spp., 190 



Dicerca crassicollis, 190 



Dicerca sexualis, 190 



Dicerca tenebrosa, 190 

 roundheaded borers — 



Arhopalus productus (Criocephalus) . 195 



Asemum atrum, 195 



Ergates spiculatus, 192 



Leptura obliterata, 196 



Megasemum asperum, 196 



Monochamus maculosus, 193 



Monochamus obtusus, 194 



Monochamus oregonensis, 194 



Neoclytus muricatulus, 47 



Opsimus quadrilineatus, 47 



Prionus calif ornicus, 193 



Ulochaetes leoninus, 196 



Xylotrechus undulatus, 197 

 horntails — 



Sir ex behrensii, 201 



Xeri's morrisoni, 201 



Xeris spectrum, 201 

 powder-post beetle, Hadrobregmus gibbi- 



collis, 206 

 other wood borer, Serropalpus barbatus, 



198 

 sapwood weevils — 



Cossomts spp., 198 



Rhyncolus spp., 198 

 on leaves — ■ 



aphid, Essigella calif or nica, 56 

 bud moths — 



Acleris variana, 105 



■'Choristoneura fumiferana, 102 



Zeiraphera griseana, 109 

 leaf beetle, Dichelonyx testae eipennis, 125 

 leaf chewers — 



Galenara consimilis, 101 



Halisidota argentata, 87 



'■'Hemerocampa pseudotsugata, 90 



Lambdina fiscellaria lugubrosa, 97 



Nepytia canosaria, 101 

 leaf weevil, Thricopelis inornata, 125 

 scale, Phenacaspis pinifoliae, 63 

 spider mites — ■ 



Paratetranychus sp., 68 



Tetranychus sp., 68 

 under bark of large trunk or branches — 

 bark beetles — ■ 



Crypturgus borealis, 166 



■■'Dendroctonus pseudotsugae, 155 



Dendroctonus valens, 142 



Dryocoetes affaber, 165 



Dryocoetes pseudotsugae, 163 



Hylastes minutus, 155 



Hylastes nigrinus, 155 



Hylastes ruber, 155 



Polygraphus rufipennis, 166 



Pseudohylesimis grandis, 162 



*Pseudohyl esinus nebulosus, 73, I£i 



Scolytus fiskei (Rocky Mts.), 158 



Scolytus monticolae, 160 



Scolytus reflexus, 160 



Scolytus tsugae, 166 



■•'Scolytus unispinosus, 73, 158 

 bark weevil, Pissodes fasciatus, 178 

 flatheaded borer, ■•'Melanophila drummondi, 



171 

 pitch moths — - 



Vespamima novaroensis, 179 



Vespamima sequoiae, 178 



