•658 



INDEX. 



385 ; formulae for, in sprays, 5, 

 15, 180, 246. 309, 338, 384,' 393, 

 406, 420, 475, 525 ; lime-sulphur 

 compared with, 125, 505 ; hydro- 

 cyanic acid gas injurious to 

 Citrus previously sprayed with, 

 376 ; reciuired amounts of, on 

 trees of different ages, 167. 

 i>orealis, Anthocoris ; Dendrodonus. 

 horeata, Cheimatobia. 



Boric Acid, in formula for bait for 

 Dacus oleae, 421. 



Borkhausenia pseiidospretella, in 

 stored products in Germany, 139. 



Borneo, new fig insects in, 393 ; 

 Psocus taprobanes recorded from, 

 494 ; species of Rhynchophortts 

 occurring in, 297. 

 ' Bossiaea, new scale-insect on, in 

 Australia, 564. 



Bostrychus, a secondarj^ pest of 

 basket willows in Germany, 195. 



Bostrychus dactyliperda (see Coc co- 

 try pes) . 



Bothricera, on grape fruit and sugar- 

 cane in Porto Rico, 332. 



hotrana, Polychvosis. 



Botrytis, Calocoris bipunctatiis asso- 

 ciated with, on flax in Ireland, 

 447. 



Botrytis hassiana (Silkworm I\Ius^ 

 cardine Fungus), infesting 

 Sitona lineata in Britain, 171 ; 

 utilisation of, against CnetJw- 

 campa pityocainpa in Italy, 56. 



Botrytis tenella, infesting Lrgaeone- 

 matus pini in Germany, 614. 



Botys, on Cajanus indicus in 

 Mauritius, 559. 



Botys octoguttatus, possibly recorded 

 in error for Thliptoceras octo- 

 guttalis on coffee in Mauritius, 

 559. 



boucheanus, Dibrachys. 



Bourbon Scale (see Aspidiotus 

 destructor). 



Bourreria havanensis, new Scolytid 

 in, in Florida, 150. 



bourreriae, Dendrosiniis. 



Box Elder, pests of, in U.S.A., 

 31, 153. 



Brachartona catoxantha, on coconuts 

 in Dutch East Indies, 507, 604 ; 

 bionomics and control of, in 

 Malaya, 220, 412, 502. 



BracJunia oigvapta, on sweet potato 

 in India, 272. 



Brachycerus inter stitialis, on aloes in 

 South Africa, 578. 



Brachycerus monachus, on aloes in 

 South Africa, 578. 



Brachycolus frequens, in Britain, 382. 



Brachylaena discolor, not attacked 



by termites in South Africa, 530. 

 Brachypternus aurantius (Golden- 

 backed Woodpecker), economic 



importance of, in India, Burma, 



and Ceylon, 53. 

 brachvpterus, Holoquiscalus. 

 Brachystegia, new weevil on, in 



Rhodesia and Nyasaland, 90. 

 Brachystola magna, a minor pest in 



Montana in 1920, 585. 

 Brachytrypes achatinus, on tea in 



India, 446. 

 Brachytrypes membranaceus, on 



Sorghum in East Africa, 432. 

 Brachytrypes portentosus, on tea in 



Formosa, 77. 

 Br aeon, parasite of Rhynchites 



betulae in Italy, 473. 

 Bracon montrealensis, parasite of 



Evergestis straminalis in U.S.A., 



572. 

 Bracon pineti, parasite of Cydia 



strobilella in Bavaria, 608. 

 Bracon sesamiae, parasite of Bus- 



seola fusca in South Africa, 218. 

 Bracon variator, parasite of Antho- 



nomus pomorum in Italy, 472. 

 Braconidae, classification of, 53. 

 bradyi, Helopeltis antonii. 

 Brahmina, synonym of Lachnos- 



terna, 89. 

 Bran, insects infesting, in Britain, 



431 ; Strigoderma arbor icola 



reared on, in captivity in Kansas, 



540 ; in poison-baits, 34, 35, 124, 



143, 153, 260, 296, 314, 405, 406, 



407, 444, 535, 576, 577. 581, 585 ; 



formulae containing, 260, 444, 581. 

 Bran Beetle (see Laemophloeus 



minutus). 

 hrasiliensis, Prospaltella. 

 Brassica napus (see Turnip). 

 Brassica oleracea (see Cabbage). 

 Brassica vapa (see Rape). 

 brassicae, Aleurodes ; Barathra 



{Mamestra) ; Brevicoryne [Aphis); 



Perrisia [Cecidomyia, Dasyneura); 



Phorbia [Anthomyia, Chortophila, 



Hylemyia) ; Phytometra {Auto- 



grapha) ; Pier is. 

 Brassolis isthmia, on banana in 



Panama Canal Zone, 304. 

 Brassolis sophorae, on palms in 



Brazil, 145 ; on coconuts in 



British Guiana, 382. 

 Braula caeca, bionomics of, infesting 



honey bees in Africa, 568; 



measures against, in Brazil, 196. 

 braunsi, Calotermes. 

 Brazil, Aspidiotus perniciosus in, 35, 



593 ; utilisation of beneficial 



