INDEX. 



639 



Iponioea batatas (see Sweet Potato). 

 Ipomoea littoralis, Cylas formicarms 



on, in Florida, 214'. 

 Ipomoea pandurata, Cylas formi- 



carius on, in Florida, 214. 

 Ips acuminaius, iu pine in Sweden, 



423. 

 Ips amitlnus, in Picea omorica in 



Balkans. 452. 

 Ips balsarneus, Pityokteines sparsus 



erroneously recorded as, in 



Canada, 527. 

 Ips cadatus (see Orthotomicus). 

 Ips calligraphus, in fore^its in N. 



America, 430, 505. 

 Ips laricis, parasitised by Doryctes 



pomarius in France. 236; in 



forests in Sweden, 469. 

 Ips longidens, iu forests in N. 



America, 430, 505. 

 Ips pini (Pine Bark-beetle), 



bionomics of, in forests in N. 



America, 429, 505. 

 Ips plastographus, in pines in 



U.S.A., 477. 

 Ips proximus, in forests in Sweden, 



469. 

 Ips radiatae, in pines in U.S.A., 



477. 

 Ips sexdentatus, in pines in Spain, 



210. 

 Ips typographus (Sjiruce Bark- 



beetle), in Picea omorica in 



Balkans, 452 ; in forests in 



Sweden, 422. 

 irava, Hidari. 

 iridescens, Levuana. 

 iridicola, Dacnusa. 

 Iridomyrmex humilis (Argentine 



Ant), in S. Africa, 247 ; inter- 

 cepted in Hawaii, 329 ; 



bionomics and* control of, in 



U.S.A., 78, 103, 215, 408, 411, 



523 ; associated with Aphids and 



Coccids, 78, 103, 411 ; formula 



for bait for, 523. 

 Iris, food-plant of Eumerus 



strigatus in N. America, 356 ; 



pests of, in U.S.A., 138, 321, 



340, 511. 

 Iris kaempferi. (Japanese Iris), 



Agromyza laterella on, in New 



Jersey, 215, 216 ; Popillia 



japoiiica probably introduced 



into U.S.A. in roots of, 101. 

 Iris Leaf-miner (see Agromyza 



laterella). 

 Iris Root Borer (see Macronoctua 



onusta). 

 Iron Sulphate, experiments with, 



against Xylotrechus guadripes, 



53. 

 Ironweed (see Vernonia baldwini). 

 irritator, Ichneumor, 

 Isabella, Isia. 



Isaria, infesting Bngrada hilaris 

 in S. Africa, 165. 



Isaria arachnophila, infesting the 

 cocoon of a Braconid in Britain, 

 143. 



Isaria ritcMei, infesting white grubs 

 in Jamaica, 502. 



Ischaemum spp., Cecidomyids 

 forming galls on, in India, 309. 



Ischnaspis longirostris, intercepted 

 on cholcos in California, 238. 



iselyi, Apanteles. 



Iseropus alboricta (see Pimpla). 



Iseropus eoelebs, synonym v of, 

 23. 



Isia isabella, in Canada, 26. 



is is, Tetrastichus. 



isitis, Arytaina. 



Isle of Wight Bee Disease (see 

 Nosema apis). 



Isocratiis vulgaris (see Asaphes). 



Isodromus, revision of genus, 523. 



Isodromiis iceryae, hosts of, in 

 U.S.A., 524. 



Isodromus niger, hosts of, in 

 U.S.A., 524. 



Isophya poltoratskii, sp. n., in 

 Transcaucasia, 346. 



Tsosoma (see Harmolita). 



Isotoma minuta (European Spr.'ng- 

 tail), in New York, 137. 



Italian Pear Scale (see Epidiaspis 

 piricola). 



italicus, Calliptamus {Caloptenus). 



Italy, almond and cherry pests in, 

 142 ; pests of figs in, 413 ; pests 

 of forests in, 157, 351 ; mea.sures 

 against locusts in, 86, 89, 465, 

 535; miscellaneous pests in, 16, 

 87, 123, 157, 193, 194, 218, 373, 

 434, 455, 465 ; pests of vines in, 

 194, 195, 465; spread of Aula- 

 raspis pentagona into France 

 from, 123; Chalcid parasites in, 

 65, 66 ; new Coccids from, 141 ; 

 measures against Dacus oleae in, 

 66 ; utilisation of Noinus 

 cardinalis against Icerya pnrcTiasi 

 in, 413. 



Itonida opuntiae, suggested intro- 

 duction of, into Australia from 

 U.S.A. to destroy prickly pear, 

 482. 



Itonida tritici (see Contarinia). 



Itoplectis behrensi, parasite of 

 Phryganidia californica in 

 U.S.A., 381. 



Itoplectis conguisitor (see Pimpla). 



Tttys perditrix (see Abbella). 



Ivy, Seudyra subflava on, in Japan 

 and Manchuria, 350. 



Ixora, Tetranychus biocvlatus on, 

 in Java, 41 ; Xylotrechus 

 quadripes on, in Tonkin, 51. 



