692 



INDEX. 



Diaspis flacourtiae, on Flacoiirtia 

 in Seychelles, 558. 



Diaspi:. flava, sp. n., in forests in 

 Brazil, 279. 



Diaspis [Aulacaspis) pentagona 

 (jNlulberry Scale, Japanese Fruit 

 Scale, White Peach Scale, West 

 Indian Peach Scale), control of, 

 on peach in South Africa, 84 ; 

 utilisation of Prospaltella berlesei 

 against, in Brazil, 593 ; plant 

 pest legislation against, in Britain, 

 486 ; on blackberry and rasp- 

 berry in British Columbia, 583; 

 on persimmon in California, 381 ; 

 intercepted on Pyrns in Cali- 

 fornia, 295 ; on Primus persica 

 in China, 206 ; on Hibiscus 

 esculentus in Fiji, 480 ; utilisa- 

 tion of natural enemies of, in 

 France, 22, 499 ; and its control 

 in Italy, 223, 281, 503, 546; 

 parasites of, in Japan, 452, 453 ; 

 on peaches in Mauritius, 559 ; 

 on papaya in Panama Canal Zone, 

 304 ; food-plants and natural 

 enemy of, in San Thome, 57, 58 ; 

 food-plants of, in Virgin Islands, 

 429, 430, 431. 



Diaspis [Aulacaspis) rosae (Rose 

 Scale), parasitised by Aspidioti- 

 phagus citrinus in Barbados, 323 ; 

 intercepted in British Columbia, 

 13 ; in Indiana, 396 ; in Italy, 

 223. 



Diaspis simmondsiac, sp. n., on 

 Simmondsia calif omica in Lower 

 California, 229. 



Diatomaceous Earth, for dissemina- 

 ting fungus spores, 56. 



Diatraea, parasites of, on rice and 

 sugar-cane in India, 70. 



Diatraea canella, on sugar-cane in 

 British Guiana, 382. 



Diatraea lineolata (Corn Stalk 

 Borer), on maize in Arizona, 

 119; previously recorded as D. 

 zeacolella in Arizona, 406. 



Diatraea orichalcochliclla, on Sorg- 

 hum in East Africa, 432. 



Diatraea saccharalis (Sugar-cane 

 Moth Borer, Larger Corn Stalk 

 Borerl, on maize in Argentina, 

 210 ; ' in Barbados, 322, 456 ; 

 measures against, in North Caro- 

 lina, 104 ; on sugar-cane and 

 rice in British Guiana, 382 ; on 

 maize and sugar-cane in Grenada, 

 59 ; in Guadeloupe, 399 ; in 

 Philippines, 150 ; mottling 



disease of sugar-cane not experi- 

 mentally transmitted by, in 



Porto Rico, 222 ; measures 

 against, in Virgin Islands, 429, 

 430 ; natural enemies of, 169, 

 429, 456. 



Diatraea saccharalis crambidoides 

 (Sugar-cane Moth Borer), intro- 

 duction of Cuban parasites of, 

 into U.S.A., 114. 



Diatraea zeacolella (Larger Corn 

 Stalk Borer), bionomics and con- 

 trol of, in North Carolina, 415 ; 

 insects mistaken for, in U.S.A., 

 119, 406. 



diatraeae, Apanteles. 



Dibrachys boucheanus, parasite of 

 Lycophotia margaritosa in Colo- 

 rado, 153. 



Dicaiothrips bakeri, sp. n., in Philip- 

 pines, 207. 



Dicerca horni, in Oregon, 165. 



Dicer ca pectorosa (Flat-headed 

 Prune-tree Borer), measures 

 against, in Oregen, 165. 



Dicerca prolongata, associated with 

 Saperda calcarata on aspen in 

 U.S.A., 314. 



Dichaetoneura leucoptera, parasite of 

 Depressaria heracleana in New 

 York, 118. 



Dichomeris ianthes, on indigo and 

 lucerne in India, 273. 



Dichomeris ligulella (Palmer W'orm), 

 on apple in New York, 326. 



Dichomeris marginellns (Juniper 

 Webworm) , bionomics and control 

 of, in U.S.A., 434. 



Dichomeris quercicola, sp. n., on 

 Quercus in Punjab, 502. 



Dicranotropis maidis (Corn Leaf- 

 hopper), measures against, in 

 Virgin Islands, 428, 430. 



Dicranotropis sorghi, on Sorghum in 

 East Africa, 432. 



Dicranura viniila, on Populus 

 tremula in Bulgaria, 497. 



Dicrurus macrocercus, protection and 

 economic importance of, in India, 

 502. 



dictyma, Melitaea. 



dictyospermi, Chrysomphahis. 



Dictyospermum album, original food- 

 plant of Chrysomphahis dictyo- 

 spermi, 104. 



Dicyclus fuscicornis, parasite of 

 dscinella frit in Britain, 534. 



Dicvphus tabaci, sp. n., on tobacco 

 in New South W'ales, 42. 



Die-back Disease, relation of Helo- 

 peltis bergrothi to, in Gold Coast, 81. 



Dielis dorsata, becoming less 

 effective against I.achnosterna 

 smithi in Barbados, 323. 



