116 LEAFHOPPEBS AFFECTING CEREALS, ETC. 
Page. 
Hylociehla mustelina, enemy of Jassidae 29 
ustulata, enemy of Jassidae 29 
Icterus bullocki, enemy of Jassidae 29 
leafhoppers 26 
galbula, enemy of Jassidse ' 29 
leafhoppers 26 
spurius, enemy of Jassidae 29 
leafhoppers 26 
Insect enemies of leafhoppers 32-35 
Iridoprocne bicolor, enemy of Cercopidae 27 
Jassidae 29 
Jassidae, bird enemies 28-31 
Jassoidea. (See Leafhoppers.) 
Junco aikeni, enemy of Ptyelus sp 27 
hyemalis, enemy of Jassidae 29 
Juncus, food plants of Helochara communis 61 
Kerosene spray against Empoasca mali 103 
Kingbird, common (see also Tyrannus tyrannus). 
enemy of leafhoppers 25 
Lanius ludovicianus, enemy of Jassidae 30 
La n ivireo solitarius, enemy of Jassidae 29 
Larus franhlini, enemy of Draeculacephala mollipes 31 
Tettigonia sp 31 
Leafhopper, black-faced. (See Beltocephalus nigrifrons.) 
bog. (See Helochara communis.) 
clover. (See Agallia sanguinolenta .) 
destructive. (See Athysanus exitiosus.) 
geminate. (See Thamnotettix geminatus.) 
inimical. (See LXeltocephalus inimicus.) 
irrorate. (See Phlepsius irroratus.) 
Say's. (See Deltocephalus sayi.) 
sharp-nosed . (See Platymetopius acutus. ) 
shovel-nosed. (See Dorycephalus platyrhynchus.) 
six-spotted. (See Cicadula 6-notata.) 
sugar-cane. (See Perhinsiella saccharicida .) 
yellow faced. (See Platymetopius frontalis.) 
headed. (See Drseculacephala reticulate.) 
Leafhoppers affecting cereal and forage crops, batrachian enemies 31-32 
bird enemies 22-31 
crops affected 15-16 
derivation of our fauna 16-18 
ecologic relations 21-22 
enemies, natural 22-35 
habits, general 19-20 
in Alabama, 1905-1906 39 
Arizona, 1910 48 
California, 1910 48-49 
Delaware, 1909 45 
District of Columbia, 1909. . . 41 
Kansas, 1905-1908 39 
Kentucky, 1905, ] 909 39 
Maryland, 1909 46 
New York, 1909 45 
