HOST INDEX OF INSECTS DESCRIBED OR CITED. 



Abies — see Fir. 



Abutilon — see Flowering' Maple and Iudian Mallow. 



Acacia ( A cacia spp.). Page 



Aspidistra scale, Hemic] pidistrw 171 



Branch and twig-borer, Polyca confertus 239 



Cottony cushion or fluted scale, \cerya purchasi 110 



Fuller's rose beetle, Pantomorus fulleri 29S 



Greedy scale, Aspidiotus camellia 175 



Ivy or oleander scale, Ay ederw 17H 



Omnivorous looper, Sabi tta 419 



Orange Tortrix, Tortria dtrt 442 



Pernicious or San Jose scale, Aspuliotu pemicioevs 179 



Pineapple scale, Diaspis bromelia> 166 



Red scale, Chrysomphalus aurantii 183 



Tricolored Xylopertha, XylopirtJia suturale !'?>:> 



Xylopertha decline 280 



Acer — see Maple. 



Achillea — see Yarrow. 



Achyrantes (Iresine spp.). 



Fuller's rose beetle, Pantomorus fulleri 298 



Actinidia (Actiiiidia sp.). 



Pernicious or San Jose scale, Aspidiotus perniciosus 179 



Adenostoma fasciculatum — see Greasewood. 



/Egopodium podagraria — see Goutweed. 



JEseulus — see Buckeye and Horse-chestnut. 



Agaricus campestris — see Mushroom. 



Agathis (Agathis spp.). 



Golden mealy bug, Pseudococcus aurilanatus 125 



Agave — see Aloe. 



Ageratum (Ageratum sp.). 



Greenhouse Orthezia, Orthezia insignia 112 



Greenhouse white fly, Asterochiton vaporariorum 198 



Agoseris (Agoseris spp.) 



Iris white fly, Aleyrodes spircroides : 196 



Hessian fly, Phytophaga destructor 322 



Ayropyron — see Quack grass and Wheat grass. 



Agrostis (Agrostis sp.) — see also red-top grass. 



Hessian fly, Phytophaga destructor 322 



AUanthus glandulosa — see Tree of Heaven. 



Akebia (Akebia sp.). 



Pernicious or San Jose scale. Aspidiotus perniciosus 179 



Alder (Alnus spp.). 



Alder flea-beetle, Haltica bimarginata . 266 



Cottony maple or vine scale, PuVoinaria ritis 135 



European fruit-tree scale. Aspidiotus oxtrca-formis 179 



Lintner's scale, Chionaspis lintneri 159 



Mulacosoma phuialis 411 



Oyster-shell scale, Lepidosaphes ulmi 190 



Omnivorous looper, Sabulodes caberata 419 



Pernicious or San Jose scale, Aspidiotus perniciosus 17!) 



Alder, White or Sweet Pepper Birch (Olethra aluifolia). 



Scurfy scale, Chionaspis furfura 158 



Alfalfa {Medicago sativa) 



Alfalfa caterpillar, Euryntus eurytheme 459 



Alfalfa crane fly, Tipula simplex 319 



Alfalfa semi-looper, Phytometra californica 395 



