194 ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



Page 



Hibiscus esculentus. food plant of Aphis gossypii 163 



Rhopalosiphum dianthi. 163 



saved by Coccinella re panda and Platyomus lividigaster 61 



Hickory, food plant of Hyphantria cunea 42 



Malacosoma disstria 79 



Hinds. AY. E.. paper. "Laboratory Methods in the Cotton Boll Weevil Investiga- 

 tions"... 111-119 



Hollyhock, food plant of Vanessa cardui So 



Honey bee. (See Apis meUifera and Bee. honey.) 



dew. on citrus trees and easuarinas in Hawaii 59 



Hop-tree. (See Ptelea trifoliata.) 



Horismenus microgastri , parasite of Apanteles catalpse in Ohio. 73 



Hornfly. (See Hsematobia serrata.) 



Horseflies, probable value of petroleum in control. 60 



Horsefly, green-headed. (See Tabanus Jineola.) 



Host plant catalogue of Aphidida? 163 



Household insects, sulphur dioxide as insecticide 144 



Houses, infestation by Troctes divinatoria 86 



Hunter, TV. D.. paper. '"The Present Status of the Mexican Cotton Boll Weevil*'. . 106 



Hydrocyanic-acid gas. against Ephestia kuehniella . . S6-8S 



Plodia vrderpuncteUa and Tenebrio 154 



Troctes divinatoria 86 



impracticable for soil fumigation in greenhouses 154 



tarnishing of silver and nickel from fumigation 86 



Hyperaspis. introduction of several species into Hawaii. 60 



undidata. introduction into Hawaii. 60 



Hyphantria cunea. color variation of larva?. 50-51 



division and union of broods, etc . . 18-50 



economic loss 51 



feeding habits 16-47 



food plants .. 41-43 



growth and molting 47-48 



habits on walnut, hackberry. and choke-cherry 13-46 



in New Hampshire 75 



Ohio. 41 . 42 



migrating habits ■- 43, 46 



remedies - 51 



textor. in Xew York SO 



Hypocala andremona . on Japanese persimmons in Cuba 70 



HypopteromaJus tabacum . parasite of Apanteles catalpx in Ohio 73 



Icerya purchasi. on citrus trees and easuarinas in Hawaii 59 



Importation of plants into Hawaii - 59 



" x Inchworm." (See Cingilia catenaria.) 



Incubation, duration in Podisus maculiventris 157-1 58. 161 



Incubator, in study of temperature effects on boll weevil 113 



Insect, does some species convey spotted fever \ . . 17 



pests, introduced. National control 9.5-106 



report of committee. 134 



photography, methods - 131-132 



phylogeny. significance of wing origin 29 



Insecticide, sulphur dioxide 139-153 



Insecticides, experiments against San Jose scale 137-138 



influence of climatic differences on efficiencv 93-94 



