apple flea weevil, 334 whitemarked tussock moth, 227 
Arge scapularis, 382 willow flea weevil, 334 
bagworm, 126 Xanthonia decemnotata, 266 
Brachys aeruginosus, 285 yellownecked caterpillar, 216 
browntail moth, 233 bark, wood, twigs— 
Canarsia ulmiarrosorella, 187 banded ash borer, 294 
cecropia moth, 206 beech. borer -293 
Charadra deridens, 237 black carpenter ant, 429 
Choristoneura fractivittana, 169 black elm bark weevil, 331 
claycolored leaf beetle, 266 Buprestis rufipes, 281 
comma butterfly, 173 carpenterworm, 146 
Dasychira cinnamomea, 229 Columbian timber beetle, 369 
definite-marked tussock moth, 228 dogwood twig borer, 299 
elm calligrapha, 262 elm bark borer, 307 
elm casebearer, 133 flatheaded appletree borer, 281 
elm dagger moth, 236 ivory-marked beetle, 302 
elm flea beetle, 263 larger shothole borer, 354 
elm leaf beetle, 260 leopard moth, 145 
elm prominent, 222 Lichenophanes bicornis, 257 
elm sawfly, 382 Magdalis barbicornis, 333 
elm sphinx, 213 pandura, 333 
Eotetranychus matthyssei, 31 midges, 442 
European snout beetle, 320 native elm bark beetle, 20 
fall cankerworm, 188 Neoclytus scutellaris, 295 
fourspotted spider mite, 31 Oberea ulmicola, 300 
fruittree leafroller, 163 pigeon tremex, 410 
giant walkingstick, 51 Platypus compositus, 376 
graybanded leafroller, 171 powderpost beetle, 255 
hemlock looper, 198 red elm bark weevil, 331 
hickory tussock moth, 223 Saperda lateralis, 298 
imperial moth, 212 Scobicia bidentata, 257 
io moth, 208 shothole borer, 356 
linden looper, 193 smaller European elm bark beetle, 352 
locust leafminer, 264 Tetraneura ulmi, 80 
Machimia tentoriferella, 132 Thysanoes berchemiae, 367 
Macroxyela ferruginea, 378 Trigonarthis minnesotana, 306 
maple leafcutter, 125 twig girdler, 301 
maple webworm, 180 twig pruner, 302 
mourningcloak butterfly, 174 Xiphydria hicoriae, 411 
Nerice bidentata, 219 tibialis, 411 
notched-wing geometer, 196 Xylosandrus germanus, 374 
Oiketicus abbotii, 126 buds, shoots, roots— 
Pachybrachis othonus, 266 Phyllophaga forsteri, 269 
paddle caterpillar, 236 implicita, 269 
Pandemis lamprosana, 161 prunina, 269 
pepper-and-salt moth, 200 tristis, 268 
Phigalia titea, 193 sucking insects— 
Phyllophaga drakei, 268 buffalo treehopper, 71 
forsteri, 269 camphor scale, 118 
implicita, 269 common falsepit scale, 104 
prunina, 269 Corythucha pergandei, 65 
tristis, 268 cottony maple scale, 97 
polyphemus moth, 207 elm armored scale, 111 
puss caterpillar, 175 elm leaf aphid, 79 
question-mark butterfly, 173 elm scurfy scale, 108 
redhumped caterpillar, 222 European elm scale, 103 
redhumped oakworm, 219 fourhumped stink bug, 64 
Schizura ipomoeae, 223 giant bark aphid, 77 
leptinoides, 223 large hickory lecanium, 95 
Schoene spider mite, 31 Neolygus invitus, 66 
spiny-elm caterpillar, 174 oystershell scale, 114 
spring cankerworm, 193 Parrott scale, 105 
stout looper, 195 periodical cicada, 74 
threelined leafroller, 161 Putnam scale, 112 
twinspot sphinx, 215 tarnished plant bug, 66 
unicorn caterpillar, 223 walnut scale, 119 
velleda lappet moth, 206 whitebanded elm leafhopper, 70 
walkingstick, 50 woolly apple aphid, 79 
woolly elm aphid, 79 
546 
