HOST INDEX. XVII 



Ash, Prickly (Xanthoxylum spp.). Page 



Citrus white fly, Dialeurodes citri 196 



Scurfy scale, Chionaspis furfura 158 



Walnut scale, Aspidiotus juglans-regice 178 



Ash, White (Fraxinus americana) . 



Scurfy scale, Chionaspis furfura 158 



Walnut scale, Aspidiotus j u glans-regiw 178 



Asparagus, Esculent (Asparagu* officinalis). 



Asparagus miner, Agromyza simplex 347 



Common asparagus beetle, Crioceris asparagi 26S 



Harlequin cabbage bug, Murgantia histrionica 201 



Lima bean symphylid, Scutigcrella californica 21 



Orange Tortrix, Tortrix citrana 412 



Yellow bear caterpillar, Diacrisia virginica 390 



Asparagus Ferns (Asparagus plumosus and A. sprengcri). 



Hemispherical scale, Saissetia hemispluerica 15] 



Ivy or oleander scale, Aspidiotus hederce 17G 



Melon aphis, Aphis gossypii 90 



Aspen (Populus tremuloides) . 



European fruit-tree scale, Aspidiotus ostrewformis 179 



Oyster-shell scale, Lcpidosaphes ulmi 190 



Poplar-stem gall-louse, Pemphigus populicaulis 76 



Red-humped caterpillar, Schixura concinna 407 



Aspen, Long-toothed (Populus grandidentata) . 



Scurfy scale, Chionaspis furfura 158 



Aspidistra (Aspidistra lurida) . 



Aspidistra scale, Hemichionaspis aspidistra' 171 



Florida red scale, Chrysomphalus aonidum 181 



Aster (Aster spp.). 



Black scale, Saissctia olcw 154 



False chinch bug, Nysius erica? 207 



Greenhouse white fly, Asterochiton vaporariorum 198 



Infernal blister beetle, Lytta stygica 294 



Red composite aphis, Macrosiphum rudbeckiw 106 



Sugar-beet wireworm, Limonius californicus 233 



Two-spotted mite, Tetranychus telarius 16 



Western 12-spotted cucumber beetle. Diabrotica soror 271 



Astragalus — see Loco-weed. 



Atriplex (Atriplv.r spp.). 



Beet armyworm, Laphygma flavimaculata 400 



Beet leaf-hopper, Eutcttie icnella 64 



Irregular wax scale, Ccroplastes irregularis 139 



Sugar-beet leaf-beetle, Monoxia puncticolUs 279 



Aucuba ( Aucuba sp.)> 



Yellow scale, Chrysomphalus citrinus 185 



Avena sativa — see Oat. 



Avocado (Persca gratissima) . 



Greenhouse thrips, Heliothrips hwmorrhoidalis 54 



Azalea (Rhododendron spp.). 



Fuller's rose beetle, Pantomorus fulleri 298 



Greenhouse thrips, Heliothrips hwmorrhoidalis 54 



Pubescent Hoplia, Iloplia pubescens 243 



Baccharis — see Groundsel tree and Chapparal Broom. 



Balm of Gilead (Populus balsamifera candicans) . 



Mourning cloak butterfly, Euvanessa antiopa 461 



Oyster-shell scale, Lcpidosaphes ulmi 190 



Balsam-apple, Wild (Echinocystis lobata) . 



Squash-vine borer, Melittia satyriniformis 430 



B— 13664 



