INDEX OF HOST TREES 



265 



Pine, lodgepole (continued) 

 in wood — - (continued) 



flatheaded borers — ( continued ) 



Chalcophora angulicollis, 187 



Chrysobothris breviloba, 191 



Chrysobothris caurina, 191 



Chrysobothris dentipes, 191 



Chrysobothris falli, 191 



Chrysobothris monticola, 191 



Dicerca tenebrosa, 190 

 homtails — 



Sirex californicus, 201 



Urocerus californicus, 201 



Xeris morrisoni, 201 



Xeris spectrum, 201 

 other wood borer, Serropalpus barbatus, 



198 

 roundheaded borers — 



Asemum atrum, 195 



Asemum nitidum, 196 



Monochamus maculosus, 193 



Monochamus obtusus, 194 



Spondylis upiformis, 196 



Tragosoma harrisi, 193 



Ulochaetes leoninus, 196 

 under bark of large trunk or branches — - 

 bark beetles — ■ 



"Dendroctonus monticolae (Pacific coast) , 

 135 



"Dendroctonus murrayana ( Rocky Mts. ) , 

 141 



"Dendroctonus ponderosae (Rocky Mts.), 

 139 



Dendroctonus valens, 142 



Dryocoetes confusus, 163 



Hylastes macer, 155 



Hylurgops lecontei, 154 



Hylurgops porosus, 154 



Hylurgops rugipennis, 154 



Hylurgops subcostulatus, 154 



Ips emarginatus, 148 



Ips guildi, (Rocky Mts.), 149 



Ips integer, 150 



Ips knausi (Rocky Mts.), 148 



Ips latidens, 148 



"Ips oregoni, 150 



Ips plastographus, 150 



"Ips radiatae, 151 



Ips vancouveri, 148 



Orthotomicus ornatus, 153 



Orthotomicus vicinus, 154 



Pityogenes carinulatus, 152 



Pityogenes fossifrons, 153 



Pityogenes knechteli, 153 



Polygraphus rufipennis, 166 



Scierus annectens, 166 

 bark weevils — 



Pissodes murrayanae, 178 



Pissodes webbi, 178 

 flatheaded borers — 



Melanophila acuminata, 172 



Melanophila consputa, 172 

 pitch moth, yespamwna sequoiae, 178 

 roundheaded borers — 



Acanthocinus obliquus, 174 



Tetropium velutinum, 173 

 Pine, Mexican white (Pinus strobiformis) — 

 in smaller limbs, twigs, or trunk — 

 twig beetles — 



Myeloborus spp., 37 



Pityophthorus spp., 37, 73, 154 

 in Wood — 



ambrosia beetles — 



Gnathotrichus aciculatus, 185 



Gnathotrichus denticulatus, 185 

 under bark of main trunk or branches — 

 bark beetles — 



■•'Dendroctonus ponderosae, 139 



Dendroctonus valens, 142 

 bark weevil, Pissodes webbi, 178 

 Pine, Monterey (Pinus radiata) — 

 feeding on needles — 

 aphids — 



Essigella californica, 56 



Schizolachnus pini-radiatae, 56 



Pine, Monterey (continued) 



feeding on needles — (continued) 

 caterpillars — 



Halisidota argentata sobrina, 88 



Nepytia umbrosaria, 101 

 leaf beetles — 



Dichelonyx decolorata, 125 



Scythropus ferrugineus, 125 

 needle gall, Thecodiplosis pini-radiatae, 70 

 needle miner or Webber — 



Argyrotaenia citrana, 108 



Argyresthia pilatella, 106 

 needle mites — 



Paratetranychus spp., 68 



Phytoptus pini, 69 



Tetranychus spp., 68 

 sawfly, Itycorsia sp., 120 

 scales — 



Nuculaspis californica, 63 



Phenacaspis pinifoliae, 63 

 spittle bug, Aphrophora permutata, 67 

 in cones or seeds — - 



cone beetle, Conophthorus radiatae, 19 

 in smaller limbs, twigs, or trunk — 

 chermes, Pineus borneri, 62 

 flatheaded borers — 



Anthaxia aeneogaster, 47 



Chrysophana placida, 47 

 pitch midge, Retiyiidiplosis resinicoloides, 



71 

 scales — - 



Physokermes insignicola, 66 



Tourney ella pinicola, 66 

 twig beetles — 



Carphoborus spp., 37 



Pityophthorus carmeli, 37 



Pityophthorus nitidulus, 37 



Pityophthorus spp., 37 

 twig moths — 



Exoteleia burkei, 52 



Rhyacionia pasadenana, 51 

 twig weevils — 



Cylindrocopturus dehiscens, 45 



Pissodes radiatae, 41 

 in wood — 



ambrosia beetle, Gnathotricus retusus, 185 

 flatheaded borers — 



Buprestis aurulenta, 188 



Buprestis nutalli laeviventris, 189 



Chrysobothris monticola, 191 

 roundheaded borers — 



Asemum nitidum, 196 



Ergates spiculatus, 192 



Leptura obliterata, 196 



Monochamus obtusus, 194 

 sapwood weevils, Cossonus spp., 198 

 under bark of large trunk or branches — 

 bark beetles — 



^Dendroctonus valens, 142 



Hylastes niguinus, 155 



Hylurgops lecontei, 154 



Hylurgops porosus, 154 



Hylurgops rugipennis, 154 



"Ips confusus, 146 



"Ips plastographus, 150 



*Ips radiatae, 151 



Pseudohyle sinus sericeus, 155 

 flatheaded borer, Melanophila californica, 



170 

 pitch moth, Vespamima sequoiae, 178 

 Pine, pinon (Pinus edulis) — 

 attacking needles — 

 caterpillars — 



Coloradia sp., 85 



Halisidota ingens, 88 

 gall midges — 



Janetiella sp., 70 



Thecodiplosis cockerelli, 70 

 sawfly, Neodiprion rohweri, 120 

 scales — - 



Matsucoccus acalyptus, 64 



Phenacaspis pinifoliae, 63 

 in cones or seeds — 



cone beetle, Conophthorus edulis, 19 



