VIII TABLE OF CONTENTS. 



Subfamily Psyllinse — Continued. Pj^e. 



Tribe Euphyllurini 114 



Genus Katacephala 114 



grandiceps 114 



arcuata 115 



Genus Euphyllura 115 



arctostaphyU 116 



neveipennis 117 



arbuti 117 



arbuticola 118 



Tribe Arytainini 118 



Genus Euphalerus 118 



nidifex 119 



rugipennis 120 



immaculatus 121 



vermiculosus 121 



propinquus 122 



Genus Arytaina 122 



robusta 123 



fuscipennis 125 



genistee 125 



ribesise 126 



assimilis 127 



minuta 128 



chelifera 128 



amorpbEe 129 



ceanothae 130 



aculeata 131 



pubescens 131 



Genus Psyllopsis 132 



fraxinicola 132 



mexicana 133 



Tribe Psyllini 134 



Genus Mitrapsylla 134 



albalineata 134 



cubana 135 



Genus Psylla 135 



fibulata 140 



sinuata 140 



parallela 141 



maculata 141 



breviata 141 



minuta 142 



coryli 143 



alba 143 



pyricola 144 



hartigii 146 



americana 147 



minor 147 



flava 148 



ribis 148 



quadrilineata 148 



alaskensis 149 



maguicauda 149 



