Stictoleptura canadensis, 304 
whitespotted sawyer, 313 
flowers, seeds, fruits— 
white pine cone borer, 156 
sucking insects— 
balsam twig aphid, 78 
balsam woolly adelgid, 83 
cryptomeria scale, 107 
pine spittlebug, 72 
Prociphilus bumelia, 78 
Saratoga spittlebug, 73 
Fir, Fraser: 
balsam gall midge, 442 
balsam twig aphid, 78 
balsam woolly adelgid, 83 
Cryphalus fraseri, 363 
Dryocoetes autographus, 361 
Fir, Siberian: See: balsam fir 
Fir, subalpine: 
balsam twig aphid, 78 
Fir, white: 
Pleroneura brunneicornis, 378 
Forsythia: 
twobanded Japanese weevil, 322 
Fremontia: 
azalea bark scale, 103 
Fringetree: 
laurel sphinx, 214 
Fruit trees, various: 
foliage— 
carpenterworm, 146 
eastern tent caterpillar, 202 
eyespotted bud moth, 154 
gypsy moth, 229 
Papilio cresphontes, 173 
redhumped caterpillar, 222 
Texas leafcutting ant, 433 
yellownecked caterpillar, 216 
bark, wood, twigs— 
apple twig borer, 257 
carpenterworm, 146 
dogwood twig borer, 299 
New York weevil, 331 
shothole borer, 356 
twig girdler, 301 
Xyleborus dispar, 373 
flowers, seeds, fruits— 
fruittree leafroller, 163 
plum curculio, 336 
sucking insects— 
barnacle scale, 94 
Florida red scale, 111 
Forbes scale, 119 
oystershell scale, 114 
San Jose scale, 120 
scurfy scale, 109 
terrapin scale, 95 
G 
Gardenia: 
barnacle scale, 94 
Ginkgo: 
American plum borer, 186 
Gooseberry: 
azalea bark scale, 103 
prairie tent caterpillar, 203 
Grape: 
black vine weevil, 321 
grape leaffolder, 178 
548 
grape mealybug, 93 
H 
Hackberry: 
foliage— 
flatheaded appletree borer, 281 
hackberry butterfly, 175 
hackberry nipplegall maker, 76 
hackberry stargall, 76 
mourningcloak butterfly, 174 
Oiketicus abbotii, 126 
oriental moth, 177 
puss caterpillar, 175 
question-mark butterfly, 173 
Sphinx drupiferarum, 214 
spiny-elm caterpillar, 174 
tawny emperor, 175 
whitetringed beetle, 322 
bark, wood, twigs— 
Agrilus celti, 280 
lecontei, 280 
Chramesus chapuisi, 352 
subopacus, 352 
Enaphalodes atomarius, 292 
flatheaded appletree borer, 281 
Formosan subterranean termite, 59 
hackberry engraver, 356 
Hylocurus langstoni, 367 
rudis, 367 
Lichenophanes bicornis, 257 
Pachypsylla celtidisinteneris, 76 
painted hickory borer, 287 
petiolgall psyllid, 76 
Phloeotribus dentifrons, 350 
Pseudothysanoes lecontei, 356 
redheaded ash borer, 294 
Scobicia bidentata, 257 
Scolytus fagi, 356 
Thysanoes fimbricornis, 367 
twig girdler, 301 
twig pruner, 302 
Xvleborus affinis, 374 
buds, shoots, roots— 
budgall psyllid, 76 
Archodontes melanopus melanopus, 
315 
sucking insects— 
azalea bark scale, 103 
common falsepit scale, 104 
cottony maple scale, 97 
dentate scale, 123 
elm scurfy scale, 108 
hackberry lace bug, 65 
mulberry whitefly, 87 
Neosteingelia texana, 90 
Parrott scale, 105 
sour-gum scale, 110 
Hackberry, netleaf: 
blistergall psyllid, 76 
Hardwoods: 
foliage— 
Amorbia humerosana, 161 
hag moth, 177 
Phyllophaga forsteri, 269 
prunina, 269 
rugosa, 268 
rusty tussock moth, 227 
Serica spp., 269 
Svmmerista albifrons, 219 
