726 



INDEX. 



inopinata, A rchirileya. 

 inopinatiiiii, Eriosoma. 

 inornata, Mccas ; Tiphia. 

 Inostenima, probably a parasite of 



Cecidomyiids in Eritrea, 506. 

 inquisitor, Rhagium . 

 insanabilis, A iitoserica. 

 Insect Powder, dusting with, 

 against Eyiocampoides limacina, 

 478; (see Pyrethrum). 

 Insecticides, legislation and pro- 

 posed regulations regarding sale 

 of, in South Africa, 244, 465 ; 

 necessity for legislation dealing 

 with purity of, in Britain, 583 ; 

 notice of experiments with, in 

 Germany, 398, 547 ; precautions 

 against adulteration of, in U.S.A., 

 313 ; preparation of, 586 ; in- 

 vestigation of vacuvim applica- 

 tion of, 188, 189. 

 Insects, studies on natural immunity 

 in, 22, 96, 329, 330, 416, 441, 500 : 

 symbols for representing the life- 

 histories of, 547, 610. 

 insessa, Sallusaphis. 

 insignis, Oythezia. 

 instigator, Pimpla. , 



insiilana, Earias. 

 insulare, Melitomma. 

 insulicola, Exochomits nigromacit- 



latus. 

 integer, Janus, 

 intermedia, Lachnosterna {Holotri- 



chia). 

 intermedins, Rhinoternies. 

 inter pimctella, Plodia. 

 inter stitialis, Brachyceriis. 

 iniricata, Oncopera. 

 intricatus, Scolytus. 

 intrndens, Coptotermes. 

 Inula heleniuni, Phorodon inulae 



on, in New York, 283. 

 inulae, Phorodon. 

 inversa, Lachnosterna. 

 iota, Pseudaonidia. 

 Iowa, pests from, intercepted in 



California, 265, 514. 

 Iphiaulax flavator, parasite of Hes- 

 perophanes griseus in France, 23. 

 Ipomoea (Morning Glory), destruc- 

 tion of, against Cylas formicarius 

 in U.S.A., 112, 235. 

 Ipomoea batatas (see Sweet Potato). 

 Ipomoea staphylina, new thrips on, 



in India, 599. 

 Ips acuminatiis, in forests in Fin- 

 land, 600. 

 Ips amitinus, measures against, in 



spruce in Germany, 254. 

 Ips autographtis, in spruce in Ger- 

 many, 254. 



Ips balsameus (see Pityokteines 



sparsus). 

 Ips bidentatiis (see Pityogenes). 

 Ips bistridentatus, in Piniis cernbra 



in Switzerland, 612. 

 Ips cembrac, in Pinus cenibra in 



Switzerland, 612. 

 Ips chalcographus (see Pityogenes). 

 Ips curvidens, measures against, in 

 forests in Germany, 253, 255, 613. 

 Ips hiidsonicus, in forests in Alberta, 



14. 

 Ips laricis, of little importance in 

 forests in Finland, 600 ; para- 

 sitised bv Calvolia in Germany, 

 589. 

 Ips lincqtits, measures against, in 



forests in German}^ 254, 255. 

 Ips mexicanus, in conifers in jNIexico, 



367. 

 Ips pertitrbatus, in forests in Alberta, 



14. 

 Ips pini, Anthocoris predacious on, 



in U.S.A., 356. 

 Ips proximus, in forests in Finland, 

 600 ; measures against, in pine 

 in Germany, 255. 

 Ips sexdentatus, of little importance 

 in forests in Finland, 600 ; mea- 

 sures against, in pine in Germany, 

 254, 255. 

 Ips siituralis, in forests in Finland, 



600. 

 Ips typograplnis, in spruce in Fin- 

 land, 600 ; bionomics and control 

 of, in forests in Germany, 97, 

 253, 254. 

 Ips vorontcoivi, in fir in Germany, 



253. 

 irava, Hidari. 

 Irbisia sericans, on rye grass in 



Alaska, 241. 

 iridescens, Levuana. 

 iridis, Lixus. 



Iridoniyrmex humilis (Argentine 

 Ant), predacious on Biisseola 

 f II sea in South Africa, 218 ; in 

 Europe, 209 ; in France, ri6, 251, 

 343, 392 ; precautions against 

 introduction of, into Italy, 343 ; 

 in U.S.A., 154, 209, 340, 352 ; 

 measures against, 251. 

 Iris, pests of, in British Columbia, 



v583. 

 Iron Sulphate, formula for, against 

 Paris spp., 527 ; trap-crops des- 

 troyed with, against Heterodera 

 schachtii, 387 ; addition of, to 

 tobacco decoction against thrips, 

 423 ; against vine moths, 287. 

 Iron Sulphide, 564. 

 Ironweed (see Vernonia). 



