556 



INDEX. 



Acanthopsyche subteralbata, of little 

 importance in tea plantations in 

 Dutch East Indies, 456. 

 Acanthoscelidesobtectus{see Brnchus). 

 accepta, Xiphydria. 

 Acer (see iNiaple). 



Acer atropnrpureum, Arctornis chry- 

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

 306. 

 Acer campestris, Eiilecaniuni coryli 



on, in Italy, 124. 

 Acer carpi nifolium, Chaitophorinella 



acerifoliae on, in Japan, 11. 

 Acer negundo, new Lepidopteron on, 



in U.S.A., 281. 

 Acer palmatum (Japanese Alaple), 

 Aphid on, in Japan, 11 ; biono- 

 mics of Platymeiopiiis hyalinus on, 

 in New Jersey, 147. 

 Acer pictuni, Aphid on, in Japan, 11. 

 Acer platanoides, Eulecanium coryli 



on, 124. 

 Acer platanoides var. globosum (Nor- 

 way INiaple), Platymetopius hya- 

 linus on, in New Jersey, 147. 

 Acer pseiidoplatanus , Eulecanium 



coryli on, 124. 

 Acer saccharuni (Hard Maple), 

 Megilla niaculata hibernating on, 

 in U.S.A., 32. 

 acericola, Phenacoccus. 

 acerifoliae, Chaitophorinella. 

 aceris, Acronycta. 

 acerni, Aegeria [Sesia). 

 Acetaldehyde, effect of, on under- 

 ground insects, 482. 

 Acetic Acid, chemotropic effect of, 



on insects, 327. 

 Achaea Janata {melicerta), on castor- 

 oil in Assam, 461 ; on gutta- 

 percha in Dutch East Indies, 329 ; 

 on sugar-cane and castor-oil in 

 Queensland, 156, 209. 

 Achaea obvia, on citrus in Gold 



Coast, 9. 

 Achaea serva, on guttapercha in 



Dutch East Indies, 329. 

 achatinus, Brachytrypes. 

 Achatodes zeae (Spindle Worm), in 

 Canada, 374 ; attacking maize 

 in U.S.A., 374. 

 achemon, Pholus. 



Acherontia atropos, on potatoes in 

 Russia, 105 ; on Solanutn melon- 

 gena in Tripoli, 159. 

 Acheta bimaculata, in Africa, 424. 

 Achillea, Euxoa segetum experi- 

 mentally fed on, in Germany, 

 271. 

 Achrota grisella (Wax Moth), 

 measures against, in beehives in 

 Germany, 272. 



Achrysopophagus io, sp. n., parasite 

 of Pseudococcus citri in Philippines, 

 521. 

 Achrysopophagus rex, sp. n., parasite 

 of Pseudococcus citri in Philip- 

 pines, 521. 

 achyrantes, Siphonophora (see Myzus 



persicae) . 

 Acidia fossataeformis, sp. n., in 



Nyasaland, 264. 

 Acidia heraclei (Celery Fly), in 



Britain, 351. 

 Acidia homogenea, sp. n., in Nvasa- 



land, 264. 

 Aciiira perpicillaris , sp. n., in 



British East Africa, 264. 

 Aclees cribratus, in Ficiis carica in 



India, 84. 

 Aclerda, in South Africa, 447. 

 Aclerda ariditatis, sp. n., probably on 

 Hilaria cenchroides in U.S.A., 187. 

 Acleris minuta (see Oxygrapha). 

 Acorus calamus (Sweet Flag), food- 

 plant of Sphenophorus pertinax 

 in U.S.A., 389. 

 acraea, Estigmene. 

 Acrida turrita, on tobacco in Africa, 



424. 

 acridiorum, Sarcophaga. 

 Acridium aegyptium (see Ortha- 



canthacris) . 

 Acridium lineatum, on tobacco in 



Africa, 424. 

 Acritochaeta pulvinata, intercepted 



in gourds in California, 182. 

 Acrobasis obtusella, in Russia, 104. 

 Acrocercops, on cotton in India, 83. 

 Acrocercops cramerella (Cacao iMoth), 

 not very injurious in Dutch 

 East Indies in 1919, 329. 

 Acrocercops hierocosma, on litchi in 



India, 84. 

 Acrolepia assectella, bionomics of, 



on leeks in France, 176. 

 A cromyrmex, associated with Coccids 



in British Guiana, 119. 

 Acronycta abscondita, parasites of, 



in Europe, 331, 408. 

 Acronycta aceris, parasites of, on 



maple in Russia, 105. 

 Acronycta euphorbiae, parasitised by 

 Rhogas rugulosus in Europe, 331. 

 Acronycta niegacephala, on poplars 



in Russia, 105. 

 Acronycta oblinita (Smeared Dagger 

 Moth), on maize in Connecticut, 

 340. 

 Acronycta psi, in Russia, 105. 

 Acronycta rumicis (Sorrel Cutworm), 

 food-plants of, in Russia, 105 ; 

 intercepted on imported nursery 

 stock in U.S.A., 306. 



