INDEX 



abbotti, Lophyrus, 258 



Abbott's Pine Sawfly, 258 



Ablerus clisiocampae, 282, 289 



Acer dasycarpum, 296 



acericola, Phenacoccus, 298 



acericola, Pulvinaria, 297 



acerifolia, Platinus, 314 



acerni, Synanthedon, 322 



Acer saccharinum, 298 



Acer saccharum, 298 



Adalia bipunctata, 311 



Agrilus anxius, 326. . 



Ailanthus, 



See Tree of Heaven 



albifrons, Symmerista, 253 



Alder, attacked by: 



Cecropia moth, Samia cecropia, 266 

 Cottony maple scale, Pulvinaria vitis, 296 

 Imperial moth, Basilona imperialis, 266 

 Oak tussock caterpillar, Halisidota mac- 



ulata, 245 

 Poplar and willow borer,Cryptorhynchus 



lapathi, 319 

 Spotted willow leaf beetle, Lina inter- 



rupta, 263 

 White marked tussock moth, Hemero- 

 campa leucostigma, 209 



AUocota thyridopterigis, 217 



Alnius glutinosa, 320 



A. incana, 319 



A. viridis, 319 



Alsopbila pometaria, 222 



Althea sp., 294 



Amelancher canadensis, attacked by: 



Willow scurfy scales, Chionaspis salicis- 

 nigTae, 290 



americana, Chionaspis, 290 



American elm — Susceptibility to insect at- 

 tack, 168 



American linden — Susceptibility to insect at- 

 tack, 168 



American plane — Susceptibility to insect at- 

 tack, 168 



Amorpha fruticosa, attacked by: 



Locust leaf beetle, Chalepus dorsalis. 233 



Amagyrus nublipennis, 300 



Anaphes gracilis, 282, 286 



Anatis 15-punctata, 311 



A. ocellata, 299 



ancylus, Aspidiotus, 283 



Anisota rubicunda, 252 



A. senatoria, 249 



A. virginiensis, 251 



Ant lions 



See Chrysopa sp. 



antiopae, Derostenus. 272 



antiopa, Euvanessa, 271 



anxius, Agrilus, 326 



Apateticus maculiventris, 221 



A. placidus, 272 



A. serieventris, 272 



Apantales catalpae, 240 



A. congregatus, 240 



Aphelinus abnormis, 286 



A. diaspidis, 284, 286, 295 



A. fuscipennis, 282, 286, 294 



A. mytilaspidis, 282, 287, 292 



Aphididae, 310 



Aphycus cognatus, 300 



A. flavus, 298 



A. hederaceus, 298 



A. pulvinariae, 297 



Aphycus stomachosus, 300 

 Apple, attacked by: 



Cecropia moth, Samia cecropia 266 



Chalepus nervosa, 236 



Chalepus rubra, 236 



Cottony maple scale, Pulvinaria vitis, 296 



English walnut scale, Aspidiotus juglans- 



regiae, 284 

 Fall cankerworm, Alsophila pometaria. 



224 

 Fall web worm, Hyphantria cunea, 215 

 Forest tent- caterpillar, Malacosoma diss- 



tria, 243 

 Maple and oak twig pruner, Elaphidion 



villosum, 329 

 Maple terrapin scale, Lecanium nigro- 



fasciatum, 300 

 Oyster shell bark louse, Lepidosaphes 



ulmi, 286 

 Pigeon tremex, Tremex columba, 322 

 Putnam scale, Aspidiotus ancylus, 283 

 Red-humped apple worm, Schizura con- 



cinna, 255 

 Spring cankerworm, Paleacrita vernata 



224 

 . Variable oak leaf caterpillar, Hetero- 



campa manteo. 248 

 Walnut Datana, Datana integerrima, 228 

 Yellow-necked Datana, Datana ministra 



230 



Apricot, attacked by: 



English walnut scale, Aspidiotus juglans- 



regiae, 300 

 White marked tussock moth, Hemero- 

 campa leucostigma, 209 

 Aralla Japonica, 296 

 Arbor vitae, attacked by: 



Bag or basket worm, Thyridopteryx 

 ephemeraeformis, 217 

 Arrhenophogus chionaspidis, 295 

 Arsenate of lead, 215, 218, 221, 226 229 

 230, 235, 236, 241, 244, 245, 276, 279, 

 325 

 Arsenate of lead 



Paste, 198, 212 

 Powdered, 198, 212 

 Ash, attacked by: 



Carpenter worm, Prionoxystus robiniae. 



329 

 English walnut scale, Aspidiotus juglans- 



regiae, 284 

 Fall cankerworm, Alsophila pometaria, 



224 

 Forest tent-caterpillar, Malacosoma diss- 



tria, 241 

 Hickory horned-devil, Citheronia regalis, 



264 

 Hickory tussock moth, Halisidota caryae, 



247 

 lo moth, Automeris io, 277 

 May or June beetles, Lachnosterna sp., 



237 

 Oyster shell bark louse, Lepidosapbes 



ulmi, 286 

 Promethia moth, Callosamia promethia, 



269 

 Putnam scale, Aspidiotus ancylus, 283 

 Spring cankerworm, Paleacrita vernata, 



224 

 White marked tussock moth, Hemero- 

 campa leucostigma, 209 



Note: The figures in heavy black type refer to the principal discussion of the subject. 



(475) 



