A SYNOPSIS OF THE APHIDIDAE 



219 



ribes, 75. 

 ribifolii, 76. 

 rosarum, 134. 

 varians, 77. 

 mncae, 74. 



N 



Nectarophora 



averiae, 94. 



bacoharadis, 61. 



californicum, 62. 



c-itrifolii, 69. 



oynosbati, 75. 



jasmini, 64. 



lactucae, 65. 



lycopersici, 76. 



pm, 66. 



rhamni, 76. 



?-osae, 67. 



soncliella, 70. 



valerianae, 71. 

 Nectarosiphon, 77. 



morrisoni, 78. 



rubicola, 77. 

 negundinis, Thomasia (Chaitophorus) , 



36. 



neomexicana, Aphis, 116. 

 nephrelepidis, Idiopterus, 56. 

 nerii, Aphis, 117. 

 nervatum, Khopalosiphum, 84. 

 nigrae, Chaitophorus, 37. 

 nigronervoaa, Pentalonia, 78. 

 nymphaeae, Siphocoryne (Aphis, Eho- 

 palosiphum), 133, 179. 



O 



occidentalis, Lachnus, 47. 

 oenotherae, Aphis, 118. 

 oregonensis, Aphis, 119. 

 oregonensis, Lachnus, 48. 

 orthocarpus, Macrosiphum, 66. 



padi, Aphis, 94. 



panicola, Schisoneura, 150. 



pasaniae, Myzoeallis, 26. 



pastinacae, Siphocoryne (Aphis, Ey- 



adaphis), 133. 

 pastinacae, Hyadaphis, 132. 

 Pemphigus, 141. 



alnifoliae, 146. 



balsamiferae, 142. 



betae, 142. 



calif ornicus, 144. 



coweni, 13. 



fraxini-dipetalae, 146. 



populicaulis, 143. 



populiconduplifolius, 145. 



populimonilis, 145. 



populi-transvcrsus, 143. 



populi-transversus, 143. 



radiciooia, 141. 



ranunculi, 144. 



venafuscus, 146. 



Pentalonia, 78. 



nigronervosa, 78. 

 persicae, Rhopalosiphum (Aphis, 



Myzus), 179, 185. 

 persicae-niger, Aphis, 119. 

 Phorodon, 79. 



canZmmwn, 73. 



galeopsidis, 81. 



humuli, 79. 



scrophulariae, 80. 

 Phyllaphis, 12. 



coweni, 13. 



fagi, 13, 178. 



qucrci, 15. 



quercicola, 15. 

 Phylloxera, 152. 



popularia, 153. 



salicola, 153. 



vastatrix, 152. 



vitifoliae, 152. 

 Phylloxerina, 153. 



popularia, 153. 



salicola, 153. 



pinicorticis, Chermes, 152. 

 pini-radiatae, Lachnus, 48, 178. 

 pisi, Maerosiphum (Aphis, Nectaro- 

 phora), 66. 

 platanoides, Drepanosiphum (Aphis), 



17. 



pomi, Aphis, 109. 

 pomi, Aphis, 120, 179. 

 ponderosa, Lachnus, 48. 

 popularia, Phylloxerina (Phylloxera), 



293. 



populca, Pterocomma, 41. 

 populicaulis, Pemphigus, 143. 

 populicola, Thomasia (Chaitophorus), 



36. 



populiconduplifolius, Thecabius (Pem- 

 phigus), 145. 



populifoliae, CJiaitophorus, 33. 

 populifoliae, Pterocomma (Aphis), 41. 

 populifolii, Aretaphis (Eichochaito- 



phorus), 33. 



populimonilis, Thecabius (Pemphi- 

 gus), 145. 



populi-transversus, Pemphigus, 143. 

 populi-transversus, Pemphigus, 143. 

 Prociphilus, 146. 



alnifoliae, 146. 



fraxini-dipetalae, 146. 



venafuscus, 146. 

 pruni, Aphis, 96. 

 prunifoliac, Aphis, 130, 179. 

 prunorum, Aphis, 121, 179. 

 pseudobrassicae, Aphis, 122, 179. 

 pseudotsugae, Lachnus, 48. 

 pteridis, Macrosiphum, 67. 

 Pterocomma, 40. 



flocculosa, 40. 



populea, 41. 



populifoliae, 41. 



smithiae, 43. 



