484 



INDEX 



Pine leaf scale, 291 

 Pine, Pitch, attacked by: 



Abbott's pine sawfly, Lophyrus abbot ti 



258 

 Pine, Short leaf, attacked by: 



Abbott's pine sawfly, Lophyrus abbotti 



258 



Imperial moth, Basilona imperialis, 266 

 Pine, White, attacked by: 



Abbott's pine sawfly, Lophyrus abbotti, 



258 



Imperial moth, Basilona imperialis, 266 

 Pine bark aphid, Chermes pinicorticis, 



310 



White pine weevil, Pissodes strobi, 325 

 Pine, White Susceptibility to insect attack, 



168 



pinicorticis, Chermes, 310 

 pinifoliae, Chionaspis, 291 

 Pinus austriaca, 292 

 P. cembra 292 

 P. echinata, 258, 266 

 P. excelsa, 292 

 P. laricis, 292 

 P. mitis, 292 

 P. pumilo, 292 

 P. pyrenaica, 292 

 P. resinosa, 292 

 P. rigida, 258 

 P. strobus, 258, 292 

 P. sylvestris, 292 

 Pissodes strobi, 323 

 Pit-making oak scale, 306 

 placidus, Apateticus, 272 



Plane, American Susceptibility to insect at- 

 tack, 168 



Plane, Oriental Susceptibility to insect at- 

 tack, 168 

 Plant lice, 310 

 Platinus acerifolia, 314 

 Platinus occidentalis, 315 

 Plum, attacked by: 



Cottony maple scale, Pulvinaria vitis, 296 

 English walnut scale, Aspidiotus juglans- 



regiae, 284 

 Forest tent- caterpillar, Malacosoma diss- 



tria, 243 



Luna moth, Tropea luna, 268 

 Maple and oak twig pruner, Elaphidion 



villosum. 329 

 Maple terrapin scale, Lecanium nigro- 



fasciatum, 300 

 Promethia moth, Callosamia promethia, 



269 

 Red-humped apple worm, Schizura con- 



cinna, 255 



Viceroy, Basilarchia disippus, 253 

 Poison ivy 



See Ivy poison 

 Polyphemus moth, 267 

 polyphemus, Telea, 267 

 pometaria, Alsophila, 222 

 Poplar and willow borer, 319 

 Poplar, attacked by: 



Cecropia moth, Samia cecropia, 266 

 Cottony maple scale, Pulvinaria vitis, 296 

 Forest tent- caterpillar, Malacosoma diss- 



tria, 243 



lo moth, Automeris io, 271 

 Maple terrapin scale, Lecanium nigro- 



fasciatum, 300 

 May or June beetles, Lachnosterna sp., 



237 

 Mourning cloak butterfly, Euvanessa 



antiopa, 272 

 Oak tussock caterpillar, Halisidota macu- 



lata, 245 

 Oyster shell bark louse, Lepidosaphes 



ulmi, 286 

 Polyphemus moth, Telea polyphemus, 268 



Poplar and willow borer, Cryptorhynchus 



lapathi, 320 



Poplar borer, Saperda calcarata, 318 

 Poplar leaf-tyer, Melalopha inclusa, 256 

 Promethia moth, Callosamia promethia 



269 



Viceroy, Basilarchia disippus 253 

 White marked tussock moth, Hemero- 



campa leucostigma, 209 

 Willow scurfy scale, Chionaspis salicis- 



nigrae, 290 



Poplar, Carolina Susceptibility to insect at- 

 tack, 168 



Poplar leaf-tyer, 256 

 Poplar, Lombardy, attacked by: 



Oyster shell bark louse, Lepidosaphes 



ulmi, 286 



Poplar borer, Saperda calcarata 318 

 Poplar, Lombardy Susceptibility to insect 



attack, 168 

 Poplar, Tulip, attacked by: 



Promethia moth, Callosamia promethia, 



269 

 Tulip tree lecanium, Toumeyella lirio- 



dendri, 301 

 Willow scurfy scale, Chionaspis salacis- 



nigrae, 290 

 Poplar, Tulip Susceptibility to insect attack, 



168 



Populus alba, 320 

 P. balsamifera, 320 

 P. deltoides, 320 

 P. sp., attacked by: 



Cottonwood leaf beetle Lina scrinta 2fi(l 

 P. tremuloides, 257, 318 

 Porthetria dispar, 175, 273 

 Potassium ferrocyanide, 317 

 Potatoes, attacked by: 



White grubs, Lachnosterna sp., 237 

 Predators : 



Adalia bipunctata, 311 

 Anatis 15-punctata 311 

 A. ocellata, 299 

 Apateticus maculiventris 221 

 A. placidus, 272 

 A. serieventris, 272 

 Assassin bugs, 315 

 Baccha fascipennis 299 

 Beetles, 225 



Birds, 210, 215, 217, 225, 229, 238, 240, 

 243, 251, 272, 287, 297, 307, 323, 

 324, 325, 329, 330 

 Black-billed cuckoo, 240, 272 

 Calosoma calidum, 249 

 C. scrutator, 243, 249, 272 

 C. wilcoxii, 243 

 Chilocorus bivulnems 282, 289 291, 



292, 296, 299, 300, 304 

 Chrysopa sp., 292, 299, 309, 310, 311 



315, 



Cocinella picta, 292 

 Cybocephalus nigritulus, 292 

 Dermestids, 211 

 English sparrow, 297 

 Fly, 298, 299 

 Ground beetles, 261 

 Hyperaspis signata, 298, 299 

 H. signata biontata, 296, 301, 303 

 H. sp., 288 



Lady beetles, 261, 263, 282, 287, 291, 

 295, 296, 298, 300, 301, 303, 304, 

 309, 310, 311 

 Megilla maculata, 311 

 Micro wesia misella, 282 

 Mite, Hemisarcoptes coccisugus, 287 

 Mites 306, 309, 315 

 Podisus placidus, 251 

 Reduviidae, 315 

 Scymnus sp., 292 



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



