INDEX. 119 
Page. 
Oxyopes salticus, enemy of leafhoppers 34 
Panicum huachucse, food plant of Deltocephalus apicatus 44 
prolifemm, food plant of Deltocephalus nigrifrons 41 
Empoasca fiavescens 41 
Liburnia puella 41 
Parabolocratus in North Dakota in 1909 42 
viridis, general account 68-69 
Partridge. (See Bonasa umbellus.) 
Passerculus sandwichensis (see also Sparrow, savanna). 
enemy of Jassidse 30 
Passer domesticus, enemy of Typhloeyba sp 31 
Passerherbulus caudacutus (see also Sparrow, sharp-tailed). 
enemy of Jassidae 28 
maritimus, enemy of Jassidse 28 
leafhoppers 26 
Pedicecetes phasianellus, enemy of Helochara communis 28 
Oncometopia lateralis 28 
Tettigonia sp 28 
Penthestes atricapillus, enemy of Cercopidae 27 
Jassidae 30 
carolinensis, enemy of Jassidae 30 
gambeli, enemy of Jassidae 30 
rufescens, enemy of Jassidae 30 
Perhinsiella saccharicida, insects, reared from leafhoppers, introduced to repress it . 33 
the sugar-cane leafhopper 51 
Petrochelidon lunifrons, enemy of Jassidae 30 
Pewee (see also Myiochanes virens). 
enemy of leafhoppers 25 
Phidippus audax, enemy of leafhoppers 34 
enemies of leafhoppers 34 
rufus, enemy of leafhoppers 34 
Philsenus bilineatus in North Dakota in 1909 42 
Philodromus, enemies of leafhoppers 34 
Phlepsius areolatus, prey of Cyrtonyx montezumse mearnsi 31 
cumulatus, prey of Chordciles virginianus 31 
excultus, prey of Chordeiles virginianus 31 
irroratus, assemblage 20 
crops affected 15-16 
general account 94-96 
in Georgia in 1909 47 
North Carolina in 1909 46 
Pennsylvania in 1909 45 
prey of Chxtura pelagica 31 
Chordeiles Virginian us 31 
Oxyech us rociferus 31 
sp., prey of Chordeiles virginianus 31 
Phoebe (see also Sayornis phozbe). 
enemy of leafhoppers 25 
Pipilof. crissalis, enemy of Jassidae '. 30 
maculatus, enemy of Jassidae 30 
m. montanus, enemy of leafhoppers 26 
Pipunculus, parasite of leafhoppers 33 
