684 



INDEX 



Lecanium persicae (see Eulecanium). 



Lecanium pseudotessellatum, sp. n., 

 on Chrysobahius pellocarpus in 

 Trinidad, 456. 



Lecanium setigerum, on guava in 

 Uganda, 457. 



Lecanium, signiferum, in plant- 

 houses at Kew, 540. 



Lecanium somereni, parasites of, in 

 W. Africa, 165. 



Lecankim tesftellatum (see Eucalym- 

 natus). 



Lecanium viridis (see Coccus). 



Lecanium wardi, sp. u., on Malacca 

 apple in Br. Guiana, 456. 



Lecliea villosa, Tetranychus telarius 

 on, in U.S.A., 243. 



lecheana, Tortrix (Cacoecia). 



lectularis, Oxycarenus. 



lectula,rius , Lachnodius. 



Leeks, pests of, in Britain, 516. 



lefroyi, Myllocerus. 



Legislation, restricting the use of 

 arsenicals in France and Algeria, 

 47, 83, 96, 350, 353, 532, 536; 

 regulating purity of- insecticides 

 in U.S.A., 220,^384, 480; (see 

 also under Plant Pests). 



leguvrinicola. Perrisia. 



le ibyi, Schizocerophaga. 



Leiomerus granicollis, sp. n., on 

 cassava in Brazil, 129. 



Leiosoma, 6. 



Lema cyanella, on oats in Holland, 

 234. 



Lema melanopa, experiments in 

 control of, in Bessarabia, 254. 



Lema trilineata, on Physalis in 

 Minnesota, 463. 



Lemon {Citrus limonum), pests of, 

 in Br. E. Africa, 509 ; pests 

 intercepted on, in California, 106, 

 146, 423, 580 ; Aphis aunmtii on, 

 in Colombia, 80 ; new Ajihid on, 

 in Eritrea, 335 ; leery a purchasi 

 on, in France, 536 ; Coccus 

 Jiesperidum. on, in Italy, 180; 

 pests of, in U.S.A., 10, 11 ; 

 control of I eery a purchasi on, in 

 New South Wales, 107. 



Lemons, in poison-baits, 103, 331. 



lemur, Baccha. 



Lentils (Ervum), Bruchus lentis on, 

 in Russia, 29, pests of, in Sey- 

 chelles, 241. 



lentis, Bruchus (Laria). 



Leonotis nepetaefolia, Tetranychus 

 antillarum on, in Porto Eico, 314. 



leontina, Myrmecozpla. 



Leonurus, Myzus rihis migrating 



from Bihes to, in U.S.A., 408. 

 lepida, Parasa. 



Lepidiota albohirta, bionomics and 

 control of, on sugar-cane in 

 Australia, 5, 240, 292, 496. 



Lepidiota frenchi, bionomics and 

 control of, on sugar-cane in 

 Queensland, 292, 496. 



Lepidium virgiviicum, (Pepper Grass) 

 Nysius ericae on, in U.S.A., 145. 



Lepidosaphes (Mussel Scale), mea- 

 sures against, in orchards in 

 New Zealand, 71 ; new species 

 of, in plant-houses at Kew, 540. 



Lepidosaphes beckii (Purple Scale), 

 on imported stock in Arizona, 

 314 ; intercepted on citrus, etc., 

 in California, 12, 106, 146, 182, 

 229, 230, 423, 474, 580 ; on 

 citrus in Florida, 49 ; control 

 of, on oranges in France, 350 ; 

 bionomics of, on citrus in West 

 Indies, 109, 392, 430, 560. 



Lepidosaphes duponti, on coconut 

 in Seychelles, 4. 



Lepidosaphes ficus (Mediterranean 

 Fig Scale), parasites of, in Cali- 

 fornia, 420. 



Lepidosaphes gloveri, declared a 

 pest in S. Africa, 543 ; inter- 

 cepted on limes in California, 

 106, 146, 182, 267, 423. 



Lepidosaphes lasianthi, intercepted 

 on camellias, etc.. in California, 

 267, 580. 



Le2)idosaphes jnnnaeformis, in China 

 54 ; on coconuts in Dutch East 

 Indies, 418, 419 ; in plant- 

 houses at Kew, 540. 



Ijepidosaphespomoriim {seeL. ulmi). 



Lepidosaphes ulmi (Oyster-shell 

 Scale), on fruit-trees in Britain, 

 516 ; on apples in Br. E. Africa, 

 112 ; intercepted on apples, etc., 

 in California. 146, 182, 229, 267 ; 

 spraying against, in Canada. 241, 

 333,' 347, 445, 547 ; use of 

 California mixture against, in 

 Holland, 234 ; food-plants of, in 

 Italy, 180 ; control of, in U.S.A., 

 295,' 323, 327 ; experiments in 

 control of, 165. 



Lepidoscelio viatrix, parasite of 

 Colemania sphenarioides, 391. 



lepidus, Bibio. 



Leptacis lignicola,»T[). n., parasite of 

 Winnerizia pinicola, 319. 



Lepthemis sabina, predaceous on 

 Schoenobius incertellus in the Far 

 East, 575. 



Leptilan canadense, food-plant of 

 Epitrix parrula in Porto Eico, 

 312. 



Leptinotarsa. decemlineata (Colorado 

 Potato Beetle), not recorded in 

 Britain in 1916. 324; bionomics 

 and control of, in Canada and 

 U.S.A., 22, 119, 121, 141, 238, 

 246, 333, 337, 364, 371, 383, 460, 

 527, 541, 549 ; experiments Avith 



