108 LEAFHOPPERS AFFECTING CEREALS, ETC. 
Page. 
Apple, food plant of Empoasca mali 100 
Archilochus colubris, enemy of Empoasca sp 31 
Jassidse 28 
Athysanella in Colorado in 1910 49 
Athysanus bicolor, general account 92-93 
colonus in Georgia in 1909 47 
curtisii, general account 91-92 
exitiosus, control, means 90-91 
crops affected 15 
description 88-89 
distribution 90 
early history 86-88 
in California in 1910 49 
New York in 1909 39 
North Carolina in 1909 46 
South Carolina in 1909 46 
Washington State in 1909 43 
life history 89-90 
origin 18 
prey of CTtsetura pelagica 31 
Chordciles virgin ian us 31 
in North Dakota in 1909 42 
obtutus, general account 93-94 
in North Carolina in 1909 46 
South Carolina in 1909 46 
sexvittatus in Montana in 1909 43 
sp. , prey of Chordeiles virginianus 31 
Auiacizes irrorata, prey of Muscivora forficata 28 
Beeolophus bicolor, enemy of Jassidse 28 
inornatus, enemy of Jassidas 28 
Balclutha in Pennsylvania in 1909 45 
Barley, food plant of Athysanus exitiosus 15, 49, 88 
Cicadula 6-notaia 15, 43, 98, 99 
Dettocephalus inimicus 74 
nigrifrons 47 
Dr 'cT enlace phala mollipes 57 
reticulata 15 
Bertram w. longicauda, enemy of Jassidse 28 
Batrachians, enemies of leafhoppers 31-32 
Beans, food plant of Empoasca wall 100 
soy. (•See Soy beans.) 
Beet, sugar, food plant of Agallia sanguinolenta 104 
Bird enemies of leafhoppers 22-31 
Blackbird, crow. (See Quiscalus quiscula.) 
Bluegrass, food plant of Agallia sanguinolenta 104 
Cicadula 6-notata 42 
Deltocephalus affinis 16, 42, 49, 82 
conjiguratus 16 
debilis 42-43 
inimicus 16. 73, 74, 75 
nigrifrons 78 
sayi . . „ . 84 
