674 



INDEX. 



Hyblaea puera, on teak in India, 

 439. 



Hydrangea, Diacrisia rirginica on, 

 in Canada, 547 ; not attacked by 

 Aspidiotus perniciosus in Illinois, 

 62. 



Hydrellia, aquatic parasites of, in 

 Russia, 511. 



Hydrellia mutata, 511. 



Hydrocampa nyviphaeata (see yym- 

 phula). 



Hydrocyanic Acid, against root 

 Aphids, 81 ; against Cydia mo- 

 lest a, 75 ; immunity of Clialcids 

 to, 519; against mites, 454; 

 against Phloeothrips oleae. 249 ; 

 against Phlocotribus scarahaeoides, 

 138 ; less efficient than carbon 

 bisulphide against Plagiolepis 

 longipes, 276 ; against scale- 

 insects, 63, 72, 261, 377, 509, 555 ; 

 resistance of Stratiomyia anubis 

 to, 191 ; against termites, 227 ; 

 against Trioza alacris, 204 ; 

 against Xyleborns fornicatus , 282 ; 

 against timber-destroying beetles, 

 281 ; against pests of stored 

 cereals, 367, 555, 576 ; experi- 

 ments witb, 221, 373 ; liquified, 

 fumigation with. 546 ; formulae 

 for using, 69, 193, 244, 261, 284, 

 352; fumigation with, 63, 138, 

 204, 227, 244, 249, 261, 272, 281, 

 284, 315, 352, 367, 374, 377, 413, 

 424, 454, 509, 546, 555 ; unsuit- 

 able against pests of stored 

 ground-nuts, 339 ; unsatisfactory 

 against Otiorrhynchus orotus, 579. 



Hydroecia (Hmp.), synonym of 

 Goriyna, 19. 



Hydroecia micaeea, on potatoes in 

 Ireland, 487. 



Hydroecia niciiians (see Apamea). 



Hydrometer, us<^ of, for testing 

 insecticides, 186. 



Hydrophilus, longevity of, 20. 



Hydrophilus piceus, longevity of, 

 21. 



Hydrotaea armipes, carnivorous 

 larva of, 428. 



Hydrotaea, dentipes, carnivorous 

 larva of, 428. 



Hydrotaea meteorica, causing intes- 

 tinal myiasis, 428. 



Hydrotropism, in insects, 209. 



Hylastes cder, in forests in Britain, 5, 

 538 ; in pines in Russia, 513. 



Hylastes cunicularius, bionomics 

 and control of, in Scotland, 5 ; in 

 spruces in Russia, 513. 



Hylastes (Hylurgops) glabratus, in 

 conifers in Russia and Siberia, 

 513, 514. 



Hylastes opacus. in pines in Russia, 

 513. 



Hylastes (Hylurgops) palliatns, in 

 forests in Britain, 5, 538 ; in 

 conifers in Russia and Siberia, 

 513, 514. 



Hylastinus obsciirus (Clover-root 

 Borer), bionomics of, on lucerne 

 in U.S.A., 72, 326. 



Hylemyia antiqiia (Onion ]\Iaggot), 

 in leeks in Britain, 516 ; in 

 onions, etc., in Canada, 331, 547, 

 548 ; control of, in onions in 

 Indiana, 186 ; in garlic and 

 onions in Italy, 180 ; in market- 

 gardens in Russia, 199; distribu- 

 tion of, in U.S.A., 116. 



Hylemyia coarctaia, on cereals in 

 Russia, 300. 



Hylesimis cholodlovslyi, sp. n., in 

 Fraximis mandshuriea in Siberia;, 

 511. 



Hylesinus crenatus. in ash in Russia,. 

 512. 



Hylesinus fraxini, in ash in Russia,. 

 29, 512." 



Hylesinus oleiperda, in fruit-trees in 

 Spain, 138. 



Hylobius abietis (Pine Weevil), bio- 

 nomics and control of, in Scot- 

 land, 5 ; in Pinus cenibra in 

 Siberia, 567. 



Hylotoma rosarum, on cherry in 

 Russia, 29. 



Hylotrupes bajulus, infesting timber 

 in Europe, 280. 



Hylurgops (see Hylastes). 



Hymenia fascialis (see Z inckenia). 



Hymenia perspecicdis. on beet in 

 Florida, 305 ; attacking J^?f en? flw- 

 tliera in gi'eenhouses in U.S.A.,. 

 495. 



hyoscyam i, Pegomy ia. 



Hyoscyamtis, PsylliodeS'affinis on, in 

 Germany, 97. 



Hyoscyovivs niger (Henbane), effect 

 of decoction of, on insect pests in 

 Russia, 25. 



Hypamblis albopictus, parasite of 

 Lygaeonemattis erichsoni in 

 Canada, 347. 



Hypera, on lucerne in Russia, 563. 



Hypera murina (Alfalfa Weevil), on 

 lucerne in U.S.A., 73. 



Hypera punctata (Clover Leaf 

 Weevil), on lucerne in U.S.A., 73,. 

 220. 



Hypera rariabilis (Alfalfa Weevil),, 

 quarantine against, in Arizona, 

 315 ; legislation against, in Cali- 

 fornia, 184, 473 ; in orchards in 

 Russia, 89 ; bionomics and con- 

 trol of, in U.S.A., 1, 17, 179, 211,. 

 372. 



Hyperaspis binotaia, predaceous oni 

 scale-insects in U.S.A., 526 ; larva 

 of, 167. 



