Tortricidia flexuosa, 178 Pseudolucanus capreolus, 267 
twobanded Japanese weevil, 322 Pseudopityophthorus asperulus, 363 
twostriped walkingstick, 51 pruinosus, 363 
Tymnes tricolor, 266 pubescens, 363 
velleda lappet moth, 206 Pseudothysanoes lecontei, 356 
walkingstick, 50 red oak borer, 291 
white oak borer, 292 redheaded ash borer, 294 
Xanthonia decemnotata, 266 sap beetles, 243 
yellownecked caterpillar, 216 Saperda lateralis, 298 
bark, wood, twigs— Scobicia bidentata, 257 
Actenodes acornis, 285 Svnanthedon geliformis, 142 
banded hickory borer, 289 sapygaeformis, 143 
beech borer, 293 Thysanoes berchemiae, 367 
black twig borer, 375 lobdelli, 367 
Buprestis rufipes, 281 twig girdler, 301 
Callirhytis quercusoperator, 424 twig pruner, 302 
carpenterworm, 146 white oak borer, 292 
chestnut bark borer, 304 Xiphydria tibialis, 411 
Choragus zimmermanni, 318 Xyleborinus saxesensi, 374 
Cinyra gracilipes, 285 Xvleborus affinis, 374 
Columbian timber beetle, 369 ferrugineus, 374 
Conotrachelus anaglyptius, 337 rubricollis, 374 
Cupes concolor, 241 xylographus , 374 
Dicerca obscura, 284 Xvloterinus politus, 371 
dogwood borer, 141 buds, shoots, roots— 
Enaphalodes atomarius, 292 Asiatic oak weevil, 322 
Eucrada humeralis, 255 broadnecked root borer, 309 
flat powderpost beetle, 299 Charadra deridens, 237 
flatheaded sycamore-heartwood borer, eyespotted bud moth, 154 
283 oak bark beetle, 362 
Hadrobregmus notatus, 255 tilehorned prionus, 309 
hardwood stump borer, 315 flowers, seeds, fruits— 
hickory spiral borer, 279 Conotrachelus carinifer, 336 
Hypothenemus dissimilis, 367 naso, 336 
interstitialis, 368 posticatus, 336 
quercus, 368 Curculio iowensis, 333 
rotundicollis, 368 nasicus, 333 
ivory-marked beetle, 302 proboscideus, 334 
leopard moth, 145 sulcatulus, 334 
Lichenophanes arminger, 257 oak bark beetle, 362 
bicornis, 257 sucking insects— 
little carpenterworm, 148 Alebra spp., 70 
Marmara spp., 131 Asterolecanium minus, 105 
Micracisella nanula, 367 quercicola, 105 
opacicollis, 367 camphor scale, 118 
Neoclytus fulguratus, 295 cottony maple scale, 97 
jouteli jouteli, 295 Eutittix spp., 70 
scutellaris, 295 false oak scale, 121 
New York weevil, 331 fourhumped stink bug, 64 
oak bark beetle, 362 giant bark aphid, 77 
oak branch borer, 294 golden oak scale, 105 
oak timberworm, 318 greater striped red oak aphid, 79 
oak-bark scarrer, 292 island oak scale, 121 
oak-stem borer, 303 Kermes galliformis, 101 
Oberea ulmicola, 300 pubescens, 101 
Orchesia castanea, 247 large hickory lecanium, 95 
oriental wood borer, 258 Myzocallis discolor, 79 
painted hickory borer, 287 melanocera, 79 
Paranthrene simulans, 144 punctatus, 79 
pecan carpenterworm, 146 oak lecanium, 96 
Petalium bistriatum, 254 oak eriococcin, 104 
seriatum, 254 Osborn scale, 112 
Phymatodes varius, 306 Penthimia spp., 70 
pigeon tremex, 410 periodical cicada, 74 
Platypus compositus, 376 Platycotis vittata, 71 
quadridentatus, 375 Quadraspidiotus socialis, 121 
Pselaphorhynchites aeratus, 319 Quernaspis quercicola, 121 
cyanellus, 319 sour-gum scale, 110 
western oak scale, 121 
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