672 



IXDEX. 



occidentalis , Pityophthorus. 



oceanica, Aspidiotus. 



ocellana, Agonopteryx ; Eiicosma 



( Tmetocera) . 

 ocellatus, Cantas ; Sinerinthus. 

 ocellatella, Phthorimaea {Lita). 

 ochracea, Gortyna. 

 ochripes, Phyllotreta. 

 ochrogaster, Euxoa. 

 Ochroma lagopus (Cork-wood Tree), 



food-plant of Dysdercus delauneyi 



in St. Vincent, '206. 

 Ocneria dispar (see Poythetria) . 

 Ocnerioxa discreta, sp. n., in North 



Nigeria, 264. 

 Ocnerogyia amanda, bionomics of, 



on figs in Mesopotamia, 478, 500. 

 Ocneros bigemmatus, sp. n., in 



British East Africa, 264. 

 Ocneyos undatiis, sp. n., in Nyasa- 



land, 264. 

 octocaudatus, Monophlebus stehhingi. 

 octogesima, Cymatophora. 

 octospina, Atta. 

 oculata, Saissetia. 

 ocidatas, Galeruclerus. 

 Ocvmiiin basilicum, unidentified 



moth on, in South America, 299. 

 Odinci wodier, Actias selene on, in 



India, 84. 

 Oioipovns longicollis, on plantain in 



Assam, 461. 

 Odonaspis rhizophilits, sp. n., on 



Chlovis incompleta in British East 



Africa, 119. 

 Odonestis potatoria, parasitised by 



Rhogas geniculator in Britain, 



331. 



Odoniomerus, notice of key to 

 species of, 417. 



Odontoteyims foymosaniis, and its 

 control in Formosa, 143, 301. 



Odontria zealandica (New Zealand 

 Grass-Grub), bionomics and con- 

 trol of, in New Zealand, 503. 



Odynsrus orbus, new Encyrtid para- 

 site of, in Hawaii, 437. 



Oebalus pitgnax (see Solubea). 



Oecanthiis, on apples in Queensland, 

 157. 



Oecanthiis nigvicornis, associated 

 with Leptosphaeria coniothyrium 

 on raspberry, 4. 



Oscanthus niveus, associated with 

 Leptosphasria coniothyrium on 

 on apples, 4. 



Oscanthus psllucens, in Russia, 103. 



oecsticola, Ipobracon ; Tetrastichus. 



Oeceticus platensis (Argentine Bag- 

 worm) bionomics and control of, 

 in South America, 214, 298, 299. 



Odcophylla smaragdina (Green Tree 



Ant), predaceous on bees in 

 Queensland, 158. 

 Oedaleus enigma, measures against, 

 on lucerne, etc., in California, 47. 

 Oedaleus nigrofasciatus, in Russia, 

 103. 



Oenophthira pilleriana (see Spar- 

 ganothis). 



Oenothera biennis (Evening Prim- 

 rose), insects on, in U.S.A., 341, 

 418. 



Ohio, cereal pests in, 92, 129, 504, 

 531 ; miscellaneous pests in, 15, 

 77, 92, 396, 403 ; precautions 

 against introduction of Pyrausfa 

 nubilalis into, 91 ; insects liable 

 to be mistaken for Pyrausta 

 nubilalis in, 130, 286 ; pests 

 from, intercepted in California, 

 114, 182, 388, 480; economic 

 entomology in, 152. 



Oidium ceraioniae, measures against, 

 infesting carob beans in Italy, 

 203. 



Oil, Linseed, for protecting straw- 

 berry plants from root weevils, 

 459. 



Oil, Aliscible, against Aphids, 129 ; 

 ineffective against Aphid eggs, 

 31 ; against Ehrhornia cupressi, 

 394. 



Oil, Palm, in formula for spray 

 against Heliothrips ruhrocinctus, 

 201. 



Oil, Rape, banding mango trees 

 with, against Monophlebus, 109. 



Oil, Vegetable, addition of, to 

 raixture for painting apple-trees 

 against Eriosoma lanigerum, 153. 



Oil Emulsion, against Gryllotalpa, 

 39 ; against mites and scale- 

 insects, 53, 135 ; and Bordeaux 

 mixture, formula for preparation 

 of, against orchard pests, 401 ; 

 and lime, formula for, against 

 pine weevils, 380 ; as a spreader 

 for lead arsenate sprays, 372. 



Oil Palm, pests of, in Dutch East 

 Indies, 330, 495, 538. 



Oil Palm, West African (see Elaeis 

 guineensis). 



Oilcloth, for protecting strawberry 

 plants from root weevils, 459. 



Oils, for painting avocado against 

 ants, 131 ; spraving with, against 

 orchard pests, 109, 153, 212, 230, 

 316, 324, 337, 344, 431 ; Syagrius 

 fuluitarsis trapped with, 375 ; in- 

 jection of, into timber against 

 termites, 301 ; in mixture for 

 painting tea bushes against 

 Xyleborus fornicatus, 110. 



