XX HOST INDEX. 



Lettuce {Lactuca sps.). Page. 



Bonn thrips, Ileliothrips fasciatns ■ 30 



False chinch bug, Nysius a iipii. status 140 



( Ji-(M'iih(iiiso wliite fly, Alci/rodcs viiporu riorum 145 



IIiirl('(juiu cabbage bug, Murgantia histrionica 146 



Twelve-spotted cucumber beetle, Diabrotica soror 229 



Lignum vitae. 



Ilariiaclc scale, Geroplastes cirripediformis 112 



i'Morida wax scale, Cerophistr.s floridensis 113 



K(m1 scale, (Jlirj/somphalua auraiitii 134 



Lilac {St/riiiga sps.). 



Apple leaf-hopper, Empoasca mali 41 



Citrus white fly, Alei/rodes citri 144, 350 



Cottony maple scale, Pulvinaria vitis 111 



(Jrain thrips, Euthrips tritici - 33 



Oyster shell scale, Lepidosaphes uhui 139 



Lime (Citrus iimetta). 



Diplacus ceroputo, Ceroputo yuccw 96 



Linden {Tilia sp. ). 



Apple leaf-hopi)er, Empoasca mali 41 



Cottony maple scale, PuUiiiaria vitis 111 



Oyster shell scale, Lepidosaphes ulmi 139 



Locust (Robinia pseudacacia) . 



Cottony cushion scale, Icerya purchasi 89 



Cottony maple scale, Pulvinaria vitis 111 



Ilarlequiu cabbage bug, Murgantia histrionica 146 



^\'alllut scale. Aspidiotus jmjlans-regice 129 



Locust, Honey (Oleditschia triacauthos). 



Itlack scale, Haissetia olece 119 



Loganberry (Ruhus vitifolius) . 



Frosted scale, Eulecanium pruinosum 116 



Hasjiberry horn-tail, Hartigia cressoni 280 



Lonicera sp. 



(ircciihouse orthezia, Orthezia insignis 93 



Lucerne, see Alfalfa. 



Lupine iLupiinis sps.). 



California tussock moth, Hemcrocauipa vetusta 179 



Lupine aphid, Macrosiphum albifrons 72 



Madder (Rubia peregrina) . 



I\y scale. Aspidiotus hederw 128 



Magnolia sps. 



I'.lack scale, Saissetia olew 119 



Citrus white fly, Alei/rodes citri 350 



Cottony cushion scale, Icerya purchasi-- 89 



Glover's scale, Lepidosaphes gloverii 138 



Ivy scale, Aspidiotus hederw 128 



Mallow {Malva sps.). 



Alfalfa looper, Autographa gamma californica 162 



Beet army worm, Laphygma exigua 163 



Green peach aphid, Myzus persicw 179 



Mango i Mnngifera sp.). 



Florida wax scale, Geroplastes floridensis 113 



Greenhouse thrips. HcUothrips hwmorrhoidalis 32 



Japanese wax scale, Geroplastes ceriferus 111 



Long-tailed mealy bug, Pseudococcus longispinus 106 



Manzanita (Arctostaphylos sp.). 



<{rain thrips. Euthrips tritici .33 



Maple. {Acer sp. I. 



A])ple leaf-hopper Empoasca mali 41 



Black scale, Saissetia olew 119 



Cottony maple scale, Pulvinaria vitis 111 



Ivy scale, Aspidiotus hederw 128 



Oyster shell scale, Lepidosaphes ulmi-^ 139 



