8 
The more important species affecting cultivated crops — Continued. Page. 
Gypona bimaculata Spang 62 
Tettigonia bifida Say 63 
Hecalus lineatus Uhl 64 
The shovel-nosed leafhopper (Dorycephalus platyrhynchus Osb.) 65 
Parabolocratus viridis Uhl 68 
The sharp-nosed leafhopper (Platymetopius acutus Say) 69 
The yellow-faced leafhopper (Platymetopius frontalis Van D.) 71 
Platymetopius cinereus Osb. and Ball 72 
The inimical leafhopper (Deltocephalus inimicus Say) 72 
Distribution 73 
Life history 75 
Treatment 77 
The black-faced leafhopper (Deltocephalus nigrifrons Forbes) 77 
Distribution 78 
Food plants 78 
Description and life-history notes 78 
Means of control 79 
Deltocephalus sonorus Ball 79 
Deltocephalus fuscinervosus Van D ^ 80 
Deltocephalus configuratus Uhl 80 
Deltocephalus affinis Gillette and Ball 82 
Distribution 82 
Description 83 
Life history 83 
Remedies 84 
Say's leafhopper (Deltocephalus sayi Fitch) 84 
The destructive leafhopper (Athysanus exitiosus Uhl.) 86 
Description 88 
Life history 89 
Distribution 90 
Means of control 90 
Athysanus curtisii Fitch 91 
Athysanus bicolor Van D 92 
Athysanus obtutus Van D 93 
The irrorate leafhopper (Phletpsius irroratus Say) 94 
The geminate leafhopper ( Thamnotettix geminatus Van D.) 96 
The six-spotted leafhopper (Cicadula 6-notata Fall.) 97 
Empoasca mali Le Baron 100 
The nymphal stages 102 
Distribution 103 
Treatment .' 103 
The clover leafhopper (Agallia sanguinolenta Prov.) 103 
Treatment 106 
Index 107 
