710 



INDEX. 



Pseudococcus virgaius, introduction 

 of, into S. Africa, 86 ; on mul- 

 berry in Formosa, 174; food- 

 plants of, in Seychelles, 68; food- 

 plants of, in the Tropics, 85 ; 

 on coffee in Uganda, 51. 



Pseudococcus vitis, measures against, 

 on vines in Kussia, 162. 



Pseudococcus vovae, on Junvperus 

 communis in Germany and Po- 

 land, 342. 



Pseudococcus ivalkeri, in Britain, 59. 



pseudococcus, Mhahdophaga. 



pseudo-floccifera, Puliinaria. 



Pseudogonatopus hospes, parasite of 

 Perkinsiella saccharicida in 

 Hawaii, 351. 



PseudoJiazis eglanterina, on stone 

 fruits in California, 450. 



PseudoJiylesinus grandis, bionomics 

 of, in Pseudotsuga taxifolia in N. 

 America, 264. 



PseudoJiylesinus granulatus, biono- 

 mics of, in Ahies grandis in N. 

 America, 264. 



PseudoJiylesinus nehulosus, biono- 

 mics of, in Pseudotsuga taxifolia 

 in N. America, 264, 265. 



PsetidompJiale eudami, sp. n., para- 

 site of Eudamus proteus in St. 

 Vincent, 121, 274. 



Pseudomyrma, protecting acacias 

 from insects in Central America 

 and Mexico, 129. 



psetidonietana, ArpJiia. 



Pseudoparlatoria cfiilina, food-plants 

 of, in Chde, 429. 



Pseudoparlatoria ostreata, inter- 

 cepted in avocado seed in U.S.A., 

 206. 



pseudopJiones, Relegonatopus. 



Pseudopteroptrix imitatrix, gen., 

 et sp. n., parasite of scale- 

 insects in Hawaii, 352. 



pseudotritea, CarpopJitJioromyia. 



PseudotrocJialus concolor, on cacao 

 in Belgian Congo, 79. 



Pseudotsuga, bark-beetles infesting, 

 in N. America, 265, 266, 267. 



Pseudotsuga maerocarpa (Big Cone 

 Spruce), pests of, in N. America, 

 167, 263. 



Pseudotsuga mucronata (see P. taxi- 

 folia). 



Pseudotsuga taxifolia (Douglas Fir), 

 pests of, in N. America, 116, 155, 

 262, 263, 264, 265, 266, 289, 363, 

 397, 421, 422, 441, 521, 522, 550. 



pseudotsugae, Dendroctonus ; Dryo- 

 coetes. 



psi, Acronycta. ■ 



psidii, Pulvinaria. 

 Psidium cattleyanu/m (Red Guava), 

 food-plant of Homona coffearia 

 in Ceylon, 540. 



Psidium guayava (see Guava). 



Psila rosae (Carrot Rust Fly), on 

 carrots and parsnips in Britain, 

 508 ; in Canada, 84 ; in Massa- 

 chusetts, 26 ; food-plants of, 

 in Norway and Sweden, 150, 284. 



Psilojytera, unidentified species of, 

 in Arizona, 307. 



Psilop)tera catenulata, on pome- 

 granate trees in Egypt, 50. 



Psiloptera webbi, in Arizona, 307. 



psociformis, Gonwentzia. 



PsycJionoctua jamaicensis, on coffee 

 in Porto Rico, 104. 



Psylla, natural enemies of, on 

 mulberry in Formosa, 174, 175. 



Psylla buxi (Boxwood Psyllid), in- 

 tercepted on boxwood in Hawaii, 

 518 ; intercepted on boxwood 

 in U.S.A., 205. 



Psylla isitis, Arytaina punctipennis 

 probably identical with, 15. 



Psylla mali (Apple Sucker), bio- 

 nomics and control of, in Britain, 

 280, 425, 430 ; control of, on 

 apples in Norway and Sweden, 

 145, 285. 



Psylla pyri (Pear Psylla), spraying 

 experiments against, in Michigan, 

 341. 



Psylla pyrieola, on fruit-trees in 

 New York, 451. 



Psylla sorbi, on mountain-ash in 

 Britain, 430. 



Psylliodes affinis (Potato Flea- 

 beetle), food-plants of, in Britain, 

 509. 



Psylliodes cJirysocepJiala, bionomics 

 and control of, in Germany, 343 ; 

 on cabbage in Sweden, 147; on 

 cabbage in Switzerland, 368. 



Psyllobora taedata, predaceous on 

 CJiromapJiis juglandicola in Cali- 

 fornia, 99. 



Psyllopa jnmcti/pennis {s,ee Arytaina). 



Pterandrus votucris, gen. et sp. n., 

 in East Africa, 208. 



pterisoides, Myzus. 



Pterochlorus japonicus (see P. tropi- 

 calis). 



Pterochlorus roboris, in Sweden, 

 146. 



PterocJilorus tropicalis, food-plants 

 of, in Japan, 548. 



Pterocomma pilosa, on willows in 

 Britain, 41. 



Pterocomma smitJiiae, Syrphid flies 

 predaceous on, in Maine, 241, 

 242. 



Pterodela pedicularis, in wheat in 

 Connecticut, 458. 



PterolopJiia melanura, attacking rub- 

 ber in East Indies, 429. 



Pteromalus, hyperparasite of Micro- 

 gaster connexus in Britain, 382. 



