INDEX. 



769 



332, 380 ; measures against, 163, 

 265, 270, 343 ; natural enemies of, 

 80, 81, 163, 403. 



nymphaeae, Galerucella ; Rhopal- 



osiphum [Aphis). 

 Nymphiila depiinctalis, on rice in 



India, 85, 153, 360 ; on rice in 



Dutch East Indies, 375 ; on rice 



in Mala^^a, 600 ; measures against, 



360. 

 Nysius ericae, experiments with 



nicotine dusts against, in U.S.A., 



131, 287. 

 Nysius ericae miniitus, experiments 



with nicotine dust against, in 



U.S.A., 287. 

 Nysius huttoni, on clover and 



lucerne in New Zealand, 29. 

 Nysius simulans, on cotton and 



maize in Brazil, 147. 

 Nyssa javanica, Phassus dainor on, 



in Java, 625. 



o. 



Oak [Quercus), Apate boring in, in 

 South Africa, 322 ; new Scolytids 

 in, in North America, 362 ; pests 

 of, in Britain, 105. 382, 562, 602 ; 

 pests of, in Canada, 199, 417 ; 

 pests of, in Czecho-Slovalda, 14, 

 264,291,486; pests of , in France, 

 111, 271 ; Tischeria complanella 

 on, in Germany, 81 ; Haltica 

 erucae on, in Holland, 509 ; 

 Cynips calicis forming galls on, in 

 Hungary, 500 ; Tettigia orni on, 

 in Italy, 94 ; Crypiotermes brevis 

 in, in Porto Rico, 127 ; Eutachyp- 

 tera psidii on, in San Salvador, 

 591 ; pests of, in U.S.A., 3, 84, 

 248, 478, 538 ; Cydia pomonella 

 feeding on galls of, 51 ; Otiorr- 

 hynchus sulcatus believed to 

 migrate to vineyards from, 497 ; 

 injurious effect of arsenicals on 

 foliage of, 386. 



Oak, Australian Silk (see Grevillea 

 robusta). 



Oak, Black (see Quercus velutina) . 



Oak, California White (see Quercus 

 lobata) . 



Oak, Evergreen, Nygmia phaeorr- 

 hoea on, in France, 111. 



Oak, Live (see Querctis agrifolia) . 



Oak, Pedunculate (see Quercus 

 pedunculata) . 



Oak, Poison (see Rhus diver siloba) . 



Oak, Red, Lygiis quercalbae possibly 

 breeding on, in Ontario, 418. 



Oak, Turkey (see Quercus cervis) . 

 Oak, Water (see Quercus nigra). 

 Oak, White, Lygus quercalbae on, in 



Ontario, 418. 

 Oak Bark-beetle (see Scolylus 



intricatus) . 

 Oak Flea-beetle (see Haltica erucae) . 

 Oak Leaf Tortrix (see Tortrix 



viridana) . 

 Oak Looper (see Ellopia somniaria) . 

 Oak Twig-girdler (see Agrilus ar- 



cuatus). 

 Oak Twig-pruner (see Elaphidion 



villosum). 

 Oat Apliis (see Siphonaphis padi). 

 Oat INIidge (see Mayetiola avenae). 

 Oat Straw, restrictions on import- 

 ation of, into Canada from U.S.A., 

 293 ; restrictions on transport- 

 ation of, in Massachusetts, 25. 

 Oats, pests of, in British Isles, 77, 

 366, 382, 475, 556 ; pests of, in 

 Czecho-Slovalda, 290, 487, 503, 

 585 ; pests of, in Denmark, 61, 

 464 ; Deltocephalus striatus on, in 

 Finland, 408 ; pests of, in France, 

 266, 542 ; little attacked by 

 Chlorops taeniopus in Germany, 

 15 ; Mayetiola avenue on, in 

 Hungary, 17 ; Sesamiavuieria on, 

 in Morocco, 265 ; Notophallus 

 bicolor on, in New Zealand, 468 ; 

 Anaphothrips striatus on, in 

 Ontario, 420 ; Cirphis unipuncta 

 on, in Queensland, 195 ; Agro- 

 myzids on, in Russia, 433 ; pests 

 of^ in U.S.A., 10, 111, 125, 172, 

 610 ; Heterodera schachtii in, 127 ; 

 in crop rotations, 165, 389 ; 

 Calandra granaria experimentally 

 fed on, 259. 

 Oberea bimaculata, in raspberry in 



British Columbia, 563. 

 Oberea oculata, in willows in Luxem- 

 burg, 318. 

 obesa, Volucella. 

 obesus, Odontotermes . 

 obliqua, Diacrisia ; Didymocantha. 

 obliquana, Ctenopseustis . 

 Obhque Tortrix (see Ctenopseustis 



obliquana) . 

 Obhque-banded Leaf-roller (see 



Tortrix rosaceana) . 

 Oblong Leaf Weevil (see Phyllobius 



oblongus) . 

 oblongus, Phyllobius ; Symdobius. 

 obovatus, Brevipalpus [Tenuipalpus). 

 obscura, Inesida ; Rhabdocnemis ; 



Rhopalimorpha ; Silpha. 

 obscuraior, Orgilus. 

 Obscure Scale (see Chrysomphalus 

 obscurus) . 



