256 



INDEX OF HOST TREES 



Aspen, quaking (continued) 

 on twigs — 



scale, Lepidosaphes uhni, 66 

 under bark of large trunk or branches — 

 roundheaded borer, Saperda calcarata, 174 

 Bay. See Laurel, California. 

 Bigtree. See Sequoia, giant. 

 Birch (Betula spp.) — 

 attacking leaves — 

 leaf caterpillars — 



Malacosoma disstria, 94 

 Notolophus antiqua, 93 

 Platysamia cecropia, 86 

 Telea polyphemus, 86 

 in smaller limbs, twigs, or trunk — 

 flatheaded borers — ■ 



Chrysobothris femorata, 47 

 Chrysobothris mali, 47 

 twig girdler, Agrihis anxius, 46 

 in wood — 



ambrosia beetle, Xyleborinus saxeseni,. 187 

 flatheaded borers — 



Chrysobothris spp., 190 

 Dicerca divaricata, 190 

 Dicerca prolongata, 190 

 on twigs — 



scale, Lepidosaphes ulmi, 66 

 under bark of large trunk or branches — 

 bark beetle, Dryocoetes betulae, 169 

 Cedar, Alaska yellow (Chamaecyparis noot- 

 katensis) — 

 in smaller limbs, twigs, or trunk — 



twig beetle, Phloeosinus keeni, 39 

 under bark of large trunk or branches — 

 bark beetle, Phloeosinus nitidus, 168 

 roundheaded borer, Atimia hoppingi, 176 

 Cedar, California incense (Libocedrus decur- 

 rens) — 

 in cones or seeds — 



cone sawfly, Augomonoctenus libocedri, 23 

 in smaller limbs, twigs, or trunk — 

 flatheaded borers — 



Anthaxia aeneogaster, Al 

 Chrysobothris nixa, 47, 190 

 Chrysobothris viridicyanea, 47 

 mealybug, Pseudococcus ryani, 66 

 roundheaded borer, Callidium calif or nicum, 



47 

 scales — 



Diaspidiotus ehrhorni, 66 

 Diaspis carueli, 66 

 Ehrhornia cupressi, 66 

 Xylococculus macrocarpae, 66 

 spider mites — 



Paratetranychus spp., 68 

 Tetranychus spp., 68 

 tip moths — - 



Argyresthia arceuthobiella, 113 

 Argyresthia libocedrella, 113 

 twig beetles — 



Phloeosinus antennatus, 39 

 Phloeosinus fidgens, 39 

 Phloeosinus hoppingi (twigs), 39 

 Phloeosinus vandykei (limbs), 39 

 in wood- 

 ambrosia beetle, Xyleborinus libocedri, 187 

 carpenter ant, Camponotus spp., 206 

 flatheaded borers — 



Chrysobothris nixa, 47, 190 

 Trachykele blondeli, 190 

 Trachykele opulenta, 190 

 other wood borer, Serropalpus barbatus, 

 198 

 under bark of large trunk or branches — 

 bark beetle, ^Phloeosinus punctatus, 167 

 roundheaded borers — 

 Atimia dorsalis, 176 

 Phymatodes nitidus, 24, 176 

 Semanotus amethystinus, 175 

 Semanotus ligneus amplus, 176 

 Cedar, Port Orford white (Chamaecyparis 

 lawsoniana) 

 in cones or seeds — 



seed midge, Janetiella siskiyou, 23 



Cedar, Port Orford white (continued) 

 in smaller limbs, twigs, or trunk — 



flatheaded borer, Chrysobothris viridicy- 

 anea, 47 



scale, Diaspis carueli, 66 

 tip moth, Argyresthia cupressella, 112 

 twig beetle, Phloeosinus punctatus, 167 

 in wood — 



other wood borer, Serropalpus barbatus, 

 198 

 under bark of large trunk or branches — 

 bark beetle, Phloeosinus squamosus, 168 

 roundheaded borers — 



Semanotus amethystinus, 175 

 Semanotus ligneus amplus, 176 

 Cedar, western red. See redcedar, Western. 

 Cottonwood, black (Populus trichocarpa) — 

 attacking leaves- 

 leaf caterpillar, Stilpnotia salicis, 93 

 sawfly, Pteronidea sp., 122 

 in the smaller limbs, twigs, or trunk' — 



bark moth, Laspeyresia populana, 53 

 in wood — 



ambrosia beetles — 



Gnathotrichus alni, 185 

 Trypodendron cavifrons, 186 

 flatheaded borers — 



Buprestis viridisuturalis, 189 

 Dicerca prolongata, 190 

 Poecilonota spp., 191 

 roundheaded borer, Xylotrechus annosus, 

 197 

 on twigs — 



scale, Lepidosaphes ulmi, 66 

 Cottonwood, Fremont (Pojndus fremontii) — 

 on leaves — 



caterpillar, Malacosoma fragilis, 95 

 leaf beetle, Chrysomela scripta, 124 

 leaf miner, Phyllonorycter tremidoidiella, 



115 

 spider mite, Tetranychus spp., 68 

 in wood — 



flatheaded borer, Buprestis viridisuturalis, 

 189 

 See also Poplar. 

 Cypress (Cupressus spp.) — 



in smaller limbs, twigs, or trunk — 

 aphid, Cinara spp., 57 

 flatheaded borers — - 



Chrysobothris nixa, 47, 190 

 Chrysobothris spp., 190 

 mealybugs — - 



Pseudococcus ryani, 66 

 Pseudococcus sequoiae, 66 

 scale, Cryptaspidiotus shastae, 66 

 spider mite, Paratetranychus spp., 68 

 tip moths — 



Argyresthia cupressella, 112 

 Epinotia subviridis, 113 

 in wood — 



flatheaded borers — ■ 



Chrysobothris ignicollis, 191 

 Chrysobothris nixa, 190 

 horntail, Sirex aerolatus, 201 

 under bark of large trunk or branches — - 

 roundheaded borer, Semanotus ligneus 

 amplus, 176 

 Cypress, Arizona (Cupressus arizonica) — 

 in smaller limbs, twigs, or trunk — 

 scale, Ehrhornia cupressi, 66 

 twig beetle, Phloeosinus spinosus, 39 

 in wood — 



flatheaded borer, Chrysobothris texana, 191 

 roundheaded borer, Atimia huachucae, 176 

 Cypress, Monterey (Cupressus macrocarpa) — 

 attacking leaves — ■ 



twig and leaf miners — ■ 



Argyresthia cupressella, 112 

 Argyresthia franciscella, 113 

 Argyresthia trifasciae, 113 

 Epinotia subviridis, 113 

 Recurvaria stanfordia, 113 

 sawfly, Susana cupressi, 122 



