| 
Fir, balsam—Continued 
borers, wood—Continued 
beetles—Continued 
northeastern sawyer, 205 
old house borer, 206 
Pityokteines sparsus, 263 
Semanotus litigiosus, 198 
spruce timber beetle, 268 
Stephanopachys substriatus, 
136 
white-spotted sawyer, 203 
Xylotrechus undulatus, 203 
horntails, Sirex juvencus, 466 
sawflies, Pleroneura brunneicor- 
nis, 433 
bud and flower feeders— 
spruce bud moth, 369 
spruce budworm, 25, 378, 472, 
ATT 
spruce coneworm, 355 
gall insect, balsam gall midge, 418 
leaf feeders— 
beetles: 
white-spotted sawyer, 203 
moths and butterflies: 
Anomogyna eliminata, 309 
Argyrotaenia occultana, 385 
black-headed budworm, 385, 
472 
Campaea perlata, 346 
chain-spotted geometer, 345 
Eufidonia notataria, 338 
Eupethecia filmata, 337 
luteata, 337 
transcanadata, 337 
false hemlock looper, 344 
filament bearer, 342 
Griselda radicana, 374 
hemlock looper, 344, 478, 483 
Hyperetis amicaria, 342 
Lexis bicolor, 307 
Palthis angulalis, 309 
Pero morrisonarius, 344 
pine tussock moth, 320 
Protobarmia porcelaria, 346 
red-banded leaf roller, 384 
Semiothisa granitata, 338 
spruce budworm, 25, 378, 472, 
ATT 
white-marked tussock moth, 
318, 476, 478, 483 
sawflies: 
Acantholyda maculiventris, 
435 
balsam fir sawfly, 446, 473 
Pleroneura brunneicornis, 433 
nesting insects— 
black carpenter ant, 484, 486 
seed insects— 
Megastigmus specularis, 476 
sucking insects— 
balsam twig aphid, 83 
balsam woolly aphid, 12, 24, 88, 
| 90123124 
| Cinara curvipes, 80 
/ Fiorinia externa, 111 
hemlock scale, 108 
pine spittlebug, 71 
Fir, balsam—Continued 
sucking insects—Continued 
Saratoga spittlebug, 72, 472 
Fir, Fraser: 
balsam gall midge, 418 
baisam twig aphid, 83 
balsam woolly aphid, 12, 24, 88, 
90, 1238; 124 
Dryocoetes autographus, 263 
Taenioglyptes fraseri, 259 
Fir, Siberian, see Balsam Fir 
Fringe tree: 
Sphinx kalmiae, 296 
Fruit trees, various: 
borer, bark and phloem— 
shot-hole borer, 238 
borer, root— 
Prionus spp., 200 
borers, wood— 
apple twig borer, 186 
carpenterworm, 388 
dogwood twig borer, 189 
New York weevil, 209 
pear blight beetle, 269 
twig girdler, 191, 502 
bud and fiower feeders— 
eye-spotted budmoth, 365 
fruit-tree leaf roller, 377 
fruit feeders— 
fruit-tree leaf roller, 377 
plum curculio, 227 
leaf feeders— 
Datana ministra, 311 
eastern tent caterpillar, 328, 
476, 477, 483 
eye-spotted budmoth, 365 
fruit-tree leaf roller, 377 
Oriental moth, 347, 349, 431, 484 
red-humped caterpillar, 316 
Gingko: 
American plum borer, 359 
Gum, black or sour, see Tupelo 
Gum, red, see Sweetgum 
Hackberry: 
borers, bark and phloem— 
Agrilus celti, 163 
lecontei, 163 
Chramesus chapuisii, 239 
flat-headed apple tree borer, 
165, 478 
hackberry engraver, 239 
Phloeotribus dentifrons, 240 
Pseudothysanoes lecontei, 253 
Scolytus fagi, 238 
borer, root— 
Archodontes melanopus, 206 
borers, wood— 
flat-headed apple tree borer, 
165, 478 
Hylocurus langstoni, 253 
rudis, 252 
Lichenophanes bicornis, 136 
painted hickory borer, 178 
pear blight beetle, 269 
red-headed ash borer, 184 
Scobicia bidentata, 136 
575 
