INDEX. 193 



Page. 

 Grain aphis, southern. (See Toxoptera grarninum.) 



fumigation with carbon bisulphide. . ". 92 



germinating power destroyed by sulphur dioxide 142, 149, 150, 151-153 



insects in Ohio - 71 



sulphur dioxide as insecticide. 142, 143, 144, 146, 148, 149 



moth, Angoumois. (See Sitotroga cerealella.) 

 Granary weevil. (See Calandra granaria.) 

 Grape berry moth. (See Polychrosis botrana.) 



food plant of Fidia viticida 72 



Polychrosis botrana 72 



Typhlocyba comes , 83 



leaf-aphis, structural differenced between grape and plum colonizing forms. 162-163 

 leaf-hopper. (See Typhlocyba comes.) 

 root-worm. (See Fidia viticida.) 

 wild. (See Vitis vulpina.) 



Grass, crab, food plant of Laphygma frugiperda. 81 



food plant of Lachno&terna sp ' 85 



injury by army worm, webworm, and white grubs 90 



" Green bug. ' ' (See also Toxoptera grarninum.) 



Texas name for Toxoptera grarninum 67 



Grosella, food plant of Melanchroia geometroides 70 



Guava scale, cottony. (See Pulvinaria psidii.) 

 Gypsy moth. (See also Porthetria dispar.) 



Federal control. 95, 97-98, 99, 103-104, 105 



invasion of New Hampshire 97-98 



Hackberry. (See Celtis occidentalis.) 



Hxmatobia serrata, in Hawaii 62 



Spalangia Mrta, a parasite in Hawaii 63 



Hair-worm, cabbage. (See Mermis albicans.) 



Halictus sp., sulphur dioxide as insecticide 145 



Hawaii, economic entomology 58-66 



experiment station, entomological work 66 



importation of plants. 59 



introduction of beneficial insects 59-66 



injurious insects 58-60 



Territorial Board of Agriculture and Forestry, entomological force 65, 66 



Hawaiian Sugar Planters' Association Experiment Station, entomological force 66 



Heliophila unipuncta, in Maryland 83-84 



New York 89 



on sugar cane in Cuba 70 



Heliothis obsoleta, in Georgia _ 80 



Minnesota : 85 



on corn in Cuba 70 



Podisus maculiventris an enemy 155 



Hellebore, ineffective against Lachnosterna sp. 85 



Hemerocampa leucostigma, on shade trees in New York 90 



Hemipterous insects, on corn and sugar cane in Cuba 70 



Hessian fly. (See also Mayetiola destructor.) 



distribution in the United States. 91 



double-brooded in North Dakota. 91 



in Minnesota 84, 91, 93 



Hibernation of boll weevil 108-109 



experiment to determine conditions 126-127 



31024— No. 60—06 m 13 



