INDEX TO AMERICAN INSECT GALLS 



299 



Orchid Isosoma, 28, 29 

 Orchid root gall, 29 

 Orchidaceae, 29 

 orchidearum, Isosoma, 28, 29 

 omatus, Eriophyes, 162 

 oruca, Cecidomyia, 82 

 Oscinis carbonaria, 22 

 ostensackenii, Andricus, 102 

 ostreatus, Neuroterus, 104 

 Ostrya, 49 

 oviim, Enura, 36 

 Oxybaphus, 128 



Pachistima, 160 

 Pachypsylla, 6, 10 



asteriscus, 124 



cucurbita, 124 



gemma, 122, 123 



globulus, 124 



mamma, 124 



pubescens, 124 



rohweri, 124 



iimbilicus, 124 



venusta, 124 



vesiculum, 124 

 pacificus, Andricus, 68 

 packardi, Mycodiplosis, 16 



Sackenomyia, 33, 35 

 padi, Eriophyes, 152, 155 

 Paeonia. 129 



pallidus, Neuroterus, 52, 116 

 pallipes, Dryophanta, 73, 74 



Neuroterus, 52, 82, 104 

 palmeri, Amphibolips, 96, 117 

 Palmer's oak apple, 96, 117 

 palustris, Dryophanta, 88, 89, 90 



Lasioptera, 214 



Retinodiplosis, 16 

 panici, Lasioptera, 23 

 paniculata, Asteromyia, 199 

 Panicum, 23 

 Papaveraceae, 130 

 Papery blister gall, 200 

 papillatus, Andricus, 88 

 ' papillosus, Neuroterus, 82, 83, 86 

 papula, Dryophanta, 89, 90 

 Paradiplosis partheniicola, 202, 204 

 Parallelodiplosis acemea, 150 



caryae, 47 



cattleyae, 29 



Parallelodiplosis {continued) 



cinctipes, 159 



clarkei, 133 



corticis, 54 



florida, 82 



spirae, 134 

 parallelus, Eriophyes, 164 

 parmula, Andricus, 108 

 Parsley family, 1 73 

 partheniicola, Paradiplosis, 202, 204 

 Parthenium, 204 



parthenocissi, Dasyneura, 165, 166 

 parvifoliae, Callirhytis, 79 

 parvula, Dryophanta, 120 

 patelloides, Andricus, 108 

 patiens, Andricus, 119 

 pattersonae, Andricus, 107 

 pattoni, Andricus, 112 

 Peach, 148 

 Pear, 134 



prickly, 173 

 Pear blister mite, 134, 135, 138 

 Pear midge, 134 

 Pear seed wasp, 134 

 pectinata, Colpodia, 170 



Winnertzia, 53 

 pedicellata, Rhopalomyia, 193, 195 

 pedunculata, Dryophanta, 105, 115 

 pellex, Cecidomyia, 177, 179 

 Pemphigus affinis, 39 



populicaulis, 38, 40 



populitransversus, 40 



populi-venae, 39 



rhois, 160 



vagabundus, 38, 39 

 pennsylvanica, Joannisia, 129 

 Pentstemon, 185 

 Peony, 129 ' 

 Peppergrass, 130 

 Peppergrass seed midge, 130 

 Peppermint bud gall, 184 

 perditor, Andricus, 118 

 perfoliata, Contarinia, 190 



Neolasioptera, 190 

 pergandei, Dasyneura, 150 

 peritomatis, Cecidomyia, 131 

 pemiciosa, Disholcaspis, 65, 70, 71 



Phylloxera, 47, 48 

 perocculta, Phytophaga, 35 

 perplexus, Andricus, 70 



