tenuis, 340 
Hylobius congener, 326 
Aylurgops pinifex, 340 
[ps spp., 358 
Melanophila acuminata, 284 
Neacanthocinus pusillus, 304 
Neoclytus muricatulus muricatulus 
295 
old house borer, 316 
Orthotomicus caelatus, 358 
pales weevil, 323 
Phloeosinus pini, 352 
Phymatodes dimidiatus , 306 
pine engraver, 359 
pitch mass borer, 142 
Pityophthorus balsameus, 364 
biovalis, 364 
cariniceps, 364 
opaculus, 363 
Pygoleptura nigrella, 306 
red turpentine beetle, 347 
Sirex juvencus, 410 
spruce beetle, 349 
Stictoleptura canadensis, 304 
Trypodendron rufitarsis, 371 
white pine weevil, 328 
Xvlotrechus undulatus, 312 
yellowhorned horntail, 410 
buds, shoots, roots— 
black vine weevil, 321 
Aylastes tenuis, 340 
joker, 237 
pales weevil, 323 
spruce bud moth, 157 
strawberry root weevil, 321 
Zeiraphera improbana, 157 
flowers, seeds, fruits— 
fir coneworm, 183 
Nepytia pellucidaria, 198 
white pine cone borer, 156 
sucking insects— 
Adelges lariciatus, 84 
Cinara atlantica, 78 
pergandei, 78 
pinivora, 78 
taedae, 78 
watsoni, 78 
cryptomeria scale, 107 
elongate hemlock scale, 113 
fiorinia hemlock scale, 113 
hemlock scale, 106 
leaffooted pine seed bug, 67 
pine needle scale, 109 
round conifer scale, 107 
shortneedle evergreen scale, 117 
Spruce, black: 
foliage— 
balsam fir sawfly, 390 
Coleotechnites piceaella, 136 
eastern blackheaded budworm, 171 
European spruce sawfly, 396 
false hemlock looper, 198 
hemlock looper, 198 
redbanded leafroller, 169 
small conifer looper, 190 
spruce budworm, 164 
spruce needleminer, 149 
spruce seed moth, 158 
yellowheaded spruce sawfly, 404 
bark, wood, twigs— 
Crypturgus alutaceus, 362 
hemlock borer, 284 
northern pine weevil, 329 
whitespotted sawyer, 313 
flowers, seeds, fruits— 
spruce seed moth, 158 
sucking insects— 
Adelges laricis, 84 
pine leaf adelgid, 86 
red spruce adelgid, 86 
Spruce, blue: 
foliage— 
Cephalcia fascipennis, 380 
Coleotechnites piceaella, 136 
Epinotia nanana, 158 
spruce needleminer, 149 
spruce seed moth, 158 
yellowheaded spruce sawfly, 404 
buds, shoots, roots— 
European chafer, 270 
strawberry root weevil, 321 
sucking insects— 
Cooley spruce gall adelgid, 82 
eastern spruce gall adelgid, 81 
Spruce, Colorado blue: 
See: spruce, blue 
Spruce, Engelmann: 
foliage— 
Coleotechnites piceaella, 136 
spruce needleminer, 149 
spruce seed moth, 158 
yellowheaded spruce sawfly, 404 
bark, wood, twigs— 
Dryocoetes caryi, 362 
spruce scolytus, 356 
sucking insects— 
Cooley spruce gall adelgid, 82 
Spruce, Norway: 
foliage— 
Coleotechnites piceaella, 136 
Epinotia nanana, 158 
European spruce sawfly, 396 
redheaded pine sawfly, 384 
spruce needleminer, 149 
strawberry root weevil, 321 
yellowheaded spruce sawfly, 404 
bark, wood, twigs— 
Crypturgus alutaceus, 362 
southern pine beetle, 343 
white pine weevil, 328 
sucking insects— 
Cinara pilicornis, 78 
eastern spruce gall adelgid, 81 
pine spittlebug, 72 
spruce bud scale, 98 
Spruce, red: 
follage— 
Coleotechnites piceaella, 136 
eastern blackheaded budworm, 171 
European spruce sawfly, 396 
hemlock looper, 198 
redbanded leafroller, 169 
spruce budworm, 164 
spruce seed moth, 158 
yellowheaded spruce sawfly, 404 
bark, wood, twigs— 
Allegheny spruce beetle, 350 
