688 



INDEX. 



Denmark in 1920, 61 ; bionomics 

 and control of, in Germany, \S. 



Chlorotettix, on sugar-cane in Porto 

 Rico, 97. 



Chocolate Spot Disease, of broad 

 beans, possibly transmitted by 

 Bruchus ruftmanus in British 

 Isles, 367. 



Choke Cherry (see Cherry, Choke). 



Cholam (see Sorghum). 



Cholus wattsi, sp. n., on pineapples 

 in Grenada, 391, 453. 



Choreia inepta, parasite of Lecanopsis 

 formicarum in British Isles, 541 ; 

 distribution of, in Europe, 541. 



Chorizagrotis aiixiliaris (Army Cut- 

 worm), bionomics and control of, 

 in Colorado, 429. 



Chortophila, referred to Hylemyia, 

 sens, lat., 193. 



Chortophila brassicae (see Phorbia) . 



Chortophila trichodactyla (see Phor- 

 bia) . 



Chramesus globulus (see Sphaero- 

 trypes tectus). 



Chromaphis, characters distinguish- 

 ing Neochi'oniaphis from, 291. 



Chromaphis carpinicola, sp. n., on 

 Carpimis yedoensis in Japan, 292. 



Chromaphis juglandicola (Walnut 

 Aphis), in U.S.A., 286, 288, 512 ; 

 nicotine against, 29, 286, 288, 512. 



Chromium, electric charges of 

 arsenicals of, 313, 425. 



chrysanthemi, M acrosiphoniella. 



Chrysanthemum, Aphelenchus on, in 

 South Africa, 400 ; Macrosiphoni- 

 ella chrysanthemi on, in Argentina, 

 606 ; Aphis intercepted on, in 

 California, 196 ; pests of, in 

 greenhouses in Canada, 420 ; 

 restrictions on importation of, into 

 Canada from U.S.A., 293 ; Phyto- 

 myza affinis on, in Denmark, 62 ; 

 Hemerophila pariana on, in Japan, 

 488 ; restrictions on transporta- 

 tion of, in Massachusetts, 25 ; 

 pests of, in U.S.A., 133, 311, 332 ; 

 effect of cyanide on, 319. 



Chrysanthemum carneum (see Pyre- 

 thrum) . 



Chrysanthemum cinerariaefolium (see 

 Pyrethrum). 



Chrysanthemum roseum (see Pyre- 

 thrum) . 



Chrysanthemum segetum (Corn Mari- 

 gold), Calocoris bipunctatus on, in 

 Ireland, 590. 



Chrysanthemum Aphis (see Macro- 

 siphum sanhorni). 



Chrysanthemum Gall Midge (see 

 Diathronomyia hypogaea) . 



Chrysobothris, in Heritiera fomes in 

 India, 573 ; in Cercis canadensis 

 in Pennsylvania, 457 ; parasites 

 of, 457, 573. 



Chrysobothris femorata (Flat-headed 

 Apple-tree Borer), food-plants of, 

 in U.S.A., 115, 213. 



Chrysobothris ' harrisi, on pine in 

 Ontario, 417. 



chrysocephala, Psylliodes. 



Chrysocharis, parasite of Phytomyza 

 angelicae in British Isles, 440. 



Chrysocharis livida, parasite of 

 Leucoptera coffeella in Porto Rico, 

 535. 



chrysochloris, Astycus. 



Chrysolophus spectabilis, in wattle 

 in Queensland, 377. 



Chrysoniela vulgatissitna (see Phyllo- 

 decta) . 



chrysomelina, Epilachna. 



chrysomphali, Aphelinus . 



Chrysomphalus, intercepted in Cali- 

 fornia, 197, 358. 



Chrysomphalus aonidum (Florida 

 Red Scale), measures against, in 

 Argentina, 509, 547 ; intercepted 

 in Cahfornia, 89, 90, 197, 251, 357, 

 358, 471 ; on mango in Florida, 

 538, 539 ; on Citrus in Jamaica, 

 167 ; on Siamese pomelo in 

 PlaiUppines, 276 ; on orange in 

 Uruguay, 226. 



Chrysomphalus apicatus, on Avi- 

 cennia nitida in British Guiana, 

 101. 



Chrysomphalus [Aspidiotus) aurantii 

 (Red Scale), on Citrus in British 

 East Africa, 23 ; in South Africa, 

 195, 321, 619; in Western 

 Australia, 629 ; in Cahfornia, 314 ; 

 intercepted in California, 251, 357, 

 472 ; on Citrus in Cyprus and 

 Egypt, 1; in Fiji, 215; inter- 

 cepted on pomelos in Hawaii, 277 ; 

 on lemon in New Zealand, 202 ; 

 intercepted on oranges in New 

 Zealand, 468 ; on Citrus in Pales- 

 tine, 495 ; on Siamese pomelo in 

 Philippines, 276 ; natural enemies 

 of, 314, 604. 629. 



Chrysomphalus biformis, intercepted 

 on orchids in California, 471 ; on 

 orchids in U.S.A., 174. 



Chrysomphalus dictyospermi (Citrus 

 Red Scale), in nurseries in South 

 Africa, 195 ; on Citrus in Argen- 

 tina, 547 ; intercepted in Cah- 

 fornia, 90. 357, 471, 472 : bio- 

 nomics Of, in Italy, 222, 398, 412, 

 438, 517 ; food-plants of, in 

 U.S.A., 69, 379 ; anatomv of, 545 ; 



