INDEX. 
Accipter coo-peri {see also Hawk, Cooper's). Page. 
enemy of Cercopidee 27 
Acinoptera acuminata, prey of Chordeiles virginianus 31 
Actitis macula ria (see also Sandpiper, spotted). 
enemy of Jassidae 28 
A'eronautes melanoleucus, enemy of Jassidae 28 
Agallia, general distribution of genus 17-18 
in California in 1910 48, 49 
Indiana in 1909 44 
punctata, origin 18 
4-punctata, origin 18 
prey of Chsetura pelagica 28 
sanguinolenta, crops affected 16 
general account 103-106 
in Pennsylvania in 1909 45 
origin 18 
prey of Lobipes lobatus 28 
Otocoris alpestris 28 
remedies 106 
siccifolia, name used for Agallia sanguinolenta 104 
sp. , prey of Chordeiles virginianus 28 
Marila americana 28 
venosa, origin IS 
Agelaius gubernator, enemy of Jassidae 25, 28 
phceniceus, enemy of Cicadula sp 31 
Jassidae 25, 28 
Agelena nxvia, enemy of leafhoppers 34 
Aimophila ruficeps, enemy of Jassidae 28 
Alfalfa, food plant of Agallia 44, 48 
sanguinolenta 16, 105 
uhleri 106 
Athysanus exitiosus 43, 49 
Cicadula 6-notata 43, 99 
Deltocephalus 49 
inimicus 43, 44, 73, 74, 75 
Empoasca mali 16, 44, 100, 101, 102 
Thamnotettix geminatus 96 
Alsike, food plant of Agallia sanguinolenta 16 
Empoasca mali 16 
Ammodramus s. australis, enemy of Jassidte 29 
Andropogon scoparius, food plant of Athysanus obtutus 94 
Platymetopius cinereus 72 
Anthus rubescens, enemy of Jassidae 28 
Aphelocoma californica, enemy of Jassidae 28 
Aphrophora sp., prey of Chordeiles virginianus 27 
107 
