INDEX. 



697 



318, 336 ; intercepted in Cali- 

 fornia, 49, 182 ; on Hevea in 

 Dutch East Indies, 329 ; new 

 parasites of, in Philippines, 521 ; 

 on cotton in Porto Rico, 303 ; 

 on cacao in San Thome, 492 ; 

 scale resembling, on coffee in 

 Tonkin, 221 ; measures against, 

 on avocado in Trinidad and 

 Tobago, 131 ; hydrocyanic acid 

 gas against, 539. 



Pseudococcus coj>istoc/a, intercepted 

 on persimmon in U.S.A., 307. 



Pseudococcus corymbatus, bionomics 

 of, on cotton and soy beans in 

 India, 83, 473. 



Pseudococcus crotonis, intercepted 

 en orcliids in U.S.A., 307. 



Pseudococcus cupressicohis, sp. n., 

 on cypress in California, 187, 

 394. 



Pseudococcus filamentosus, inter- 

 cepted on Hibiscus in California, 

 114. 



Pseudococcus gahani (Citrophilus 

 Mealy-bug), in Britain, 343 ; con- 

 trol of, in California, 316, 318, 

 336. 



Pseudococcus hibernicus, on dead 

 oak in Britain, 343. 



Pseudococcus inquilinus, sp. n., ants 

 associated with, in British Guiana, 

 119 



Pseudococcus krannhiae (Japanese 

 Mealy-bug), biological control of, 

 in California, 318. 



Pseudococcus longisetosus, sp. n., 

 food-plants of, in California, 187. 



Pseudococcus longispinus (see P. 

 adonidum) . 



Pseudococcus lycii, sp. n., on Lycium 

 in U.S.A., 187. 



Pseudococcus maritinius (Baker's 

 ]\Iealy-bug), on ivy-leaved ger- 

 anium in Britain, 343 ; biological 

 control of, in California, 318, 

 336 ; intercepted on bananas in 

 California, 387. 



Pseudococcus nipae (Coconut INIealy- 

 bug) on avocado in Florida, 218 ; 

 on guava in Porto Rico, 446 ; 

 measures against, on avocado in 

 Trinidad and Tobago, 131. 



Pseudococcus perniciosus, on coffee 

 in British East Africa, 119. 



Pseudococcus quercicolus, sp. n., 

 food-plants of, in California, 187. 



Pseudococcus ryani, on cypress in 

 California, 394. 



Pseudococcus sacchari (Sugar-cane 

 Mealy-bug), on sugar-cane in 

 British Guiana, 471 ; in Porto 



Rico, 483, 484 ; intercepted in 

 U.S.A., 237, 307 ; possible rela- 

 tion of, to mottling disease of 

 sugar-cane, 483. 



Pseudococcus scquoiae, on cypiess in 

 California, 394. 



Pseudococcus sphagni, associated 

 with Formica picea in Brilam 

 343. 



Pseudococcus trifoUi, on Trifoliuiii 

 pratense in South America, 62. 



Pseudococcus virgatus, accompany- 

 ing Phenacoccus hirsutus in India, 

 83 ; on coffee in Dutch East 

 Indies, 330 ; food-plants and 

 parasite of, in Porto Rico, 303 ; 

 intercepted in U.S.A., 182, 307. 



Pseudococcus viiis (White Sca'e^ 

 Cryptolaenms niontrouzieri possi- 

 bly effective against, in Algeria, 

 57 ; measures against, on vmes in 

 France, 212 ; measures against, 

 on vines in Italy, 252 ; on vmes 

 in Tunis, 452. 



Psevtdococcus ivalkeri, on grasses in 

 Britain, 343. 



pseudocoryli, Macrosipliuin . 



Pseudodiaspis atrip^icis, sp. n., on 

 Atriplex in U.S.A., 187. 



Pseudodiaspis condaliae, sp. n., on 

 Condalia spathulata in U.S.A., 

 187. 



Pseudodiaspis undiipora, sp. n , on 

 Phoradeiidrov flavescens in 

 CaUfornia, 112. 



Pseudodiaspis yuccae, 259. 



pseudodirhodum , Macrosiphum . 



Pseudogonatopus hospes, parasite 

 of Perkinsiella saccharicida ni 

 Hawaii, 526. 



Pseudokermes uiarginatus, sp. n., on 

 Nectandra in British Guiana, 119. 



Pseudomonas catnpesiris, inlp.sting 

 vegetables in Queensland, 157 



Pseudomonas citri (Citrus Canker), 

 194. 



pse udom ori , Hyles i nus. 



Pseudomorus brimnoniana (Waddy- 

 wood), pests of, in Queensland, 

 156. 



Pseudophilippia inquilina, sp. n., 

 ants associated with, in Jamaica, 

 119. 



pseudorosae, Macrosiphum . 



Pseudotsuga taxifolia {dougla^i) 

 (Douglas Fir), pests of, m 

 Britain, 377, 423 ; Hemerocawpa 

 vetusta gulosa on, in British 

 Columbia, 323 ; Chionaspis pini- 

 foliae intercepted on, in California, 

 240, 319; Gastrodes abietis on, 

 in Lithuania, 469 ; new Lepidop- 



