Pine, western white— 
borer, bark and phloem— 
mountain pine beetle, 605 
borer, twig and shoot— 
white-pine weevil, 282-284 
leaf feeder— 
red-headed pine sawfly, 552 
sucking insect— 
pine leaf aphid, 138 
Pine, ee (See also Pine, shortleaf; Pine, Ponde- 
rosa)— 
borers, bark and phloem— 
Corticeus piliger, 218 
Ips calligraphus, 218, 334 
borers, cone and seed— 
beetles— 
cone beetle, 6, 327-328 
moth— 
Dioryctria amatella, 452 
borer, twig and shoot— 
white-pine weevil, 282-284 
borers, wood— 
beetle— 
Nicobium hirtum, 225 
moths— 
Dioryctria amatella, 452 
Zimmerman pine moth, 452 
Plum— 
borers, bark and phloem— 
peach bark beetle, 315 
Scolytus sulcatus, 312 
shot-hole borer, 310 
borer, fruit— 
apple maggot, 524 
leaf feeders— 
beetle— 
European snout beetle, 291 
moths— 
apple and thorn skeletonizer, 485 
brown-tail moth, 412-414 
cigar casebearer, 489 
cynthia moth, 377, 378 
eastern tent caterpillar, 416-418 
eye-spotted bud moth, 471 
oriental moth, 441-442 
palmerworm, 460 
puss caterpillar, 443 
Sphinz drupiferarum, 374 
sawfly— 
plum web-spinning sawfly, 585 
root feeder— 
Polydrusus impressifrons, 290 
Poiso ivy— 
borer, bark and phloem— 
Pityophthorus rhois, 331 
leaf feeders— 
moth— 
Episimus argutanus, 471 
sawfly— 
Arge humeralis, 549 
Poplar, Aspen, and Cottonwood (Populus spp.)— 
borer, bark and phloem— 
bronze birch borer, 191 
borer, root— 
hornet moth, 462 
borers, twig and shoot— 
beetles— 
Micrasis populi, 325 
Oberea schaumii, 232, 256 
poplar twig borer, 232, 266 
twig girdler, 257 
sawfly— 
willow shoot sawfly, 590-591 
borers, wood— 
beetles— 
Anisandrus populi, 341 
cottonwood borer, 31-32, 228, 233, 260-261 
Dicerca tenebrica, 195 
flatheaded poplar borer, 196 
Hylecoetus spp., 220-221 
Lyctus spp., 227 
oak timberworm, 280 
Oberea ferruginea, 232, 255 
Platypus compositus, 342 
poplar borer, 26, 233, 264 
poplar-butt borer, 233, 270 
poplar-gall saperda, 232, 264, 266 
poplar twig borer, 232, 266 
poplar and willow borer, 286-287 
24, 
Poplar, Aspen, and Cottonwood—Continued 
borers, wood—Continued 
beetles—Continued 
Ptilinus pruinosus, 226 
sapwood timber worm, 221, 222 
Sinodendron rugosum, 170 
Trypodendron retusus, 339 
horntail— 
black and red horntail, 589 
moths— 
carpenter worm, 497 
hornet moth, 462 
flower or catkin feeder— 
Dorytomus subsimilis, 290 
gall insects— 
aphids— 
Pemphigus populicaulis, 133 
populi-globuli, 133 
poplar stem gall aphid, 133 
poplar vagabond aphid, 133 
beetle— 
poplar-gall saperda, 232, 264-266 
midges— 
poplar twig gall fiy. 522 
tulip gall fly, 514 
moth— 
Ectoedemia populella, 502 
sawflies— 
Pontania spp., 577 
leaf feeders— 
beetles— 
Chrysomela interrupta, 274 
tremulae, 274 
cottonwood leaf beetle, 274 
cottonwood leaf-mining beetle, 273 
European snout beetle, 291 
goldsmith beetle, 181 
imported willow leaf beetle, 274 
Phyllophaga drakei, 171 
ilicis, 179 
vehemens, 176 
willow flea beetle, 292 
butterflies and moths— 
Abbottana clemataria, 437 
Acronicta distans, 392 
impressa, 392 
leporina vulpina, 391 
Amorbia humerosana, 476 
Anacampsis innocuella, 459 
Anacamptodes larvaria, 430 
Brephos infans, 422 
Bruce’s spanworm, 426 
Cerura spp., 405 
chain-spotted geometer, 436 
cleft-headed spanworm, 432 
cottonwood dagger moth, 391-392 
Deilinea erythremaria, 428 
Fuchlaena pectinaria, 433 
Fentonia marthesia, 405 
forest tent caterpillar, 418 
fruit tree leaf roller, 478 
Gluphisia septentrionis, 405 
gypsy moth, 408-412 
Hyperaeschra stragula, 400 
Ichthyura spp., 397 
io moth, 378, 380 
lappet moth, 419 
large aspen tortrix, 480 
Lycia ursaria, 432 
mourning-cloak butterfly, 369 
Nevada buck moth, 380 
Nymphalus j-album, 369 
oriental moth, 441 
Paonias ercaecatus, 375 
pepper and salt moth, 432 
Pheosia rimosa, 400 
poplar tentmaker, 396 
Raphia frater, 395 
red-humped caterpillar, 404 
satin moth, 414-416 
smeared dagger moth, 393 
Smerinthus jamaicensis, 375 
Sphinz luscitiosa, 374 
spotted tussock moth, 386 
Tetralopha sp., 447 
tiger swallowtail, 368 
Tolype velleda, 419 
viceroy butterfly, 370 
white-marked tussock moth, 406 
