674 



INDEX. 



Opatrum intermedium, Gonocephalum 



simplex closely related to, 425. 

 Opatrum reticulatum, bionomics of, 



on beet in Japan, 398. 

 Opatrum sabulosum, in Russia, 105. 

 Opercula, Calcareous, construction 



of, by Longicorn larvae, 101. 

 operculella, PhtJwrimaea. 

 Operophthera bnimata (see Chei- 



matobia). 

 Ophideres, on citrus in Queens- 

 land, 156. 

 Ophion, possibly an enemy of 

 Xvlomvges eridania in Florida, 

 236. 

 Ophionectria, in San Thome, 494. 

 Ophiusa jnelicerta (see Achaea 



Janata). 

 Ophiusa serva (see Achaea). 

 Ophonus calceatus, in Russia, 105. 

 Opilo mollis, predaceous on Coleop- 



tera in France, 434. 

 opinator, Syrphus. 

 Opius cereus, sp. n., parasite of 



fruit-flies in Trinidad, 11. 

 Opius craivfordi, O. trinidadensis pos- 

 sibly a geographical race of, 11. 

 Opius cupidus, sp. n., parasite of 

 Pegomyia hyoscyami in U.S.A., 11. 

 Opius doivnesi sp. n., parasite of 

 Rhagoletis pomonella in U.S.A., 1 1 . 

 Opius ferrugineus, ovipositing in 

 cherries infested with Rhagoletis 

 spp. in Ontario, 1 . 

 Opius fletcheri, utilisation of, against 

 Dacus cucurbitae in Hawaii, 347, 

 375. 

 Opius humilis, utilisation of, against 

 Ceratitis capitata in Hawaii, 170, 

 171, 375. 

 Opius lectus, sp. n., possibly para- 

 sitic on Rhagoletis pomonella in 

 U.S.A., 11. 

 Opius melleus, parasite of Rhago- 

 letis pomonella in U.S.A., 11. 

 Opius richmondi, sp. n., possibly 

 parasitic on Rhagoletis pomonella 

 in U.S.A., 11. 

 Opius trinidadensis, sp. n., parasite 



of fruit-flies in Trinidad, 11. 

 Opius turneri, sp. n., parasite of a 

 Dipterous leaf-miner in U.S.A., 

 11. 

 Opostega nonstrigella, probably 

 associated with gooseberry twig 

 disease, 4. 

 optabilis, Paranagrus. 

 opidenta, Trachykele. 

 opvJentus, Catantops. 

 Opuntia ficus-indicus , suggested 

 planting of, against Icerya 

 purchasi in Sicily, 122. 



Opuntia monocantha, Dactylopius 

 confusus indicus introduced into 

 Queensland to destroy, 157 ; (see 

 Prickly Pear) . 

 Orange, measures against scale- 

 insects on, in Algeria, 57, 213, 

 450 ; pests of, in Argentina, 299, 

 434 ; Rhynchocoris on, in Assam, 

 461 ; pests of, in Brazil, 292, 325, 

 405 ; pests intercepted on, in 

 California, 13, 49, 181, 182, 240. 

 319, 387, 479, 480 ; pests of, in 

 Cuba, 51, 53, 229; control of 

 scale-insects on, in Cyprus, 204 ; 

 Tartessus ferrugineus on, in 

 Formosa, 86 ; measures against 

 scale-insects on, in South France, 

 450 ; pests of, in India, 84, 130, 

 445 ; Aleurocanthus woglumi on, 

 in Jamaica, 480 ; pests of, in 

 Japan, 144, 257 ; not attacked by 

 Ceratitis capitata on high plateaux 

 in jNIadagascar, 134 ; Decilaus 

 citriperda on, in Queensland, 277 ; 

 new weevils on, in Transvaal, 

 264 ; pests of, in U.S.A., 463. 

 508- ; control of Papilio thoan- 

 tiades on, in Uruguay, 214. 



Orange, Chinese, food-plant of Cera- 

 titis capitata in Hawaii, 171. 



Orange, Mock (see Philadelphus 

 gordonianus). 



Orange Fly (see Dacus tsuneonis). 



Orange Free State, new Aphid on 

 chrysanthemum in, 447 ; new 

 weevils and their food-plants in, 

 264. 



Orange :Mite (see Brevipalpus 

 obovatus) . 



Orange Rust Mite (see Eriophyes 

 oleivorus). 



Orange Sann Moth (see Argina 

 cribraria). 



Orange Tortrix (see Tortrix citrana). 



Orange Worm (see Papilio thoan- 

 tiades). 



Oranges, in formulae for baits for 

 grasshoppers, etc., 129, 386, 465. 



orbi, Coelopencyrtus. 



orbus, Odynerus. 



Orchestes fagi, parasitised by Sigal- 

 phus pallidipes in Britain, 331. 



Orchestes quercus, parasitised by 

 Si^alphus pallidipes in Britain, 

 331. 



Orchids, Lecanium aequale on, in 

 Britain, 343 ; mealy-bugs inter- 

 cepted on, in Hawaii, 431 

 Chliaria dendrobii on, in Java, 40 

 new ant on, in Switzerland, 488 

 pests intercepted on, in U.S.A., 

 49, 307, 480. 



