Xviii HOST INDEX. 



Gumbo (JJibiscus sps.)- '^'^*l^' 



Japancso wax scale, Ceroplastes ccrifcni-s 111 



riiu'niiplc scale, Diaspis hromcUw 1^^ 



Wliilc peach sale, Aiilacaspis pentagona l25 



Habrothamnus sp. „ 



lllack st-aic, SSaifisctia olcw 11^ 



Citrus mealy bug, Pseiidococcus citri . ^ 1'^- 



Hawksbeard {Crepis sp.)- „„ 



r.taii llirips. Heliothrips fasciatiis ^^ 



Hawthorn (Rham mis sp.) see Bucktliorn. 



Cotldii.v maple scale, Pulvinuria riti.s 111 



Frosted scale, Eidecanium pruinosnm 11" 



Green apple aphis. Aphis pomi '" 



Ivy scale, Aspidiotus hederw l'^^ 



Oyster shell scale, Lejndosaphes ulmi l39 



Ked-luimped caterpillar, Schizura concinna 188 



Rosy or purple apple aphis. Aphis sorhi 171 



San Jose scale, Aspidiotus perniciosus 130 



Scurfy scale, Chionaspis furfvra 1-3 



Hazel (Caryl us sp.). 



Ai)i)le l(>af-hopper, Empoasca luali 41 



Heath ( Erica sp. ). 



Greedy scale, Aspidiotus camellice l^l" 



Ivy scale. Aspidiotus hedercE 128 



Heliotrope {HeUotropium sps.). 



Beau thrips, Heliothrips fasciatus 30 



Six-spotted mite, Tetranychus himaculatiis 8 



White peach scale, Aiilacaspis pentagona 125 



Hemp (Cannabis sp. ). 



.\l)ple leaf-hopper. Empoasca mali 41 



Heracleum sphondylium. 



rarsiiip louse, Hyadaphis pa.itinac<e 86 



Hex glabra. 



Florida wax scale. Ceroplastes floridensis 113 



Holly (Osmanthus ilicifolius) . 



P.lack scale, Saissetia olew 119 



Ivy scale, Aspidiotus hederw 128 



Orange chionaspis, Chionaspis citri 121 



Soft brown scale. Coccus hespcridum 114 



Holly, Mountain (Heteromeles arbutifolia) . 



lilack scale, Saissetia olece 119 



(Ji'crdy scale, Aspidiotus eiiiii<H]<r 127 



Hollyhock (Althwa rosea). 



.\pplc ]<'af-hopi)er, Empoasca mali 41 



Honeysuckle, see Lonicrera. 

 Hop illunnilus lupnliis). 



II(>i) flea beetle. Psi/lUodes punctulata 231 



Hop louse, I'horodon humuli 85 



Six-spotted mite, !'( trani/elius bimaculafus S, 302 



Hop-tree (J'tclea buldirinii var. erenuUitu) . 



Oyster shell scale, Lepidosaphes ulmi 139 



Horse Bean, see Broad Bean. 

 Horse-chestnut (.Eseulus hippocasfdnuiii ). 



Apple leaf-hopper, Empoasca mali 41 



Oyster shell scale. Lepidosaphes ulmi 139 



Horse Radish (Covhlearia annoracia) . 



Ci\\)\MiH' worm, Pontia rapw 196 



IIarle(|uin cabbage bug, Margantia histrionica 146 



Wi'stdii army worm, Chorizagrotis agrestis 163 



Hound's Tongue (('ynoglossum sp. ) . 



(Jreeu peach aphid, Myzus persicce 79 



Iris sp. 



White flies, Aleyrodes sps 275 



Ivy, Boston (Ampelopsis tricuspidata). 



Cjiriis white fly, Aleyrodes citri 3.50 



