HOST INDEX. lxxix 



Vigna catjang — see Cowpea. 



Vinca (Tinea spp.). Page 



Fuller's rose beetle, Pantomorus fulleri 29S 



Ivy or oleander scale. Aspidiotus hederw (not listed). 



Soft brown scale, Coccus hesperidum 143 



Violet (Viola spp.) . 



Brown violet aphis, Rhopalosiphum viola; 101 



Omnivorous looper, Sabulodcs caberata 419 



Potato flea-beetle, Epitrix cucumcris 261 



Two-spotted mite, Tetranychus telarius 17 



Yellow bear caterpillar, Diacrisia virginica 390 



Virginia Creeper ( Amprlopsis quinquefolia) . 



Achemon sphinx, Pholus achemon 385 



Cherry or calico scale, Lecanium ccrasorum 146 



European peach scale, Lecanium persicw (not listed). 



Grape leaf-hopper, Erythroneura comes 65 



Oyster-shell scale, Lepidosaphes ulmi 190 



Pernicious or San Jose scale, Aspidiotus perniciosus 180 



Strawberry flea-beetle, Haltiea ignita 267 



Vitex (Yitcx littoralis). 



Ivy or oleander scale, Aspidiotus hederw 177 



Yitis — see Grape. 



Vriesia (Yriesia splendent). 



Ivy or oleander scale, Aspidiotus hederw 177 



Wall Flower (Erysimum spp.). 



Striped turnip flea-beetle, Phyllotreta viitata 283 



Walnut, Black (Juglans spp.). 



American walnut aphis, Callipterus caryw 82 



Apple leaf-hopper, Empoasca mali 63 



California Prionus, Prionus californicus ! 252 



California tussock moth, Hemerocampa vetusta 409 



Little hickory aphis, Monellia caryella . S2 



Omnivorous looper, Sabulodes caberata 419 



Orange Tortrix, Tortrix citrana 442 



Pernicious or San Jose scale, Aspidiotus perniciosus 180 



Scurfy scale. Chionaspis furfura 15S 



Spotted tree-borer, Synapheeta gitcxi 253 



Two-spotted mite, Tetranychus telarius 17 



"Walnut blister mite, Eriophijes tristriatus 9 



Wild walnut plant louse, Callipterus californicus 83 



Yellow-necked apple caterpillar, Datana niinistra 406 



Walnut, English (Juglans regia) . 



Baker's mealy bug, Pseudococcus bakeri 126 



California Prionus, Prionus californicus 252 



Cherry or Calico scale, Lecanium cerasorum 146 



Codlin-motb. Cydia pomonella 437 



Cottony cushion or fluted scale, Icerya purphasi 110 



Eriophyes tristriatus erinus 9 



Frosted scale, Lecanium pruinosum 151 



Greedy scale, Aspidiotus camelliw 175 



Green peach aphis, Rhopalosiphum persicw 98 



Nautical borer. Xylotrechus nauticus 255 



Oyster-shell scale, Lepidosaphes ulmi 190 



Pear thrips, Twniothrips pyri 57 



Pernicious or San Jose scale, Aspidiotus perniciosus 180 



Red scale, Chrysomphalus aurantii 184 



Spotted tree-borer, Synaphocta guexi 253 



Two-spotted mite, Tetranychus telarius 17 



Walnut blister-mite, Eriophyes tristriatus 9 



