A SYNOPSIS OF THE APHIDIDAE 



217 



citrifolii, Macrosiphum (Nectaro- 



phora), 69. 

 Cladobius, 41. 



rufulus, 41. 



salicti, 43. 

 Coccus, 140. 



lataniac, 140. 



pinicorticis, 152. 

 Colopha, 148. 



ulmicola, 148. 

 Coloradoa, 137. 



rufomaculata, 137. 

 conii, Siphocoryne, 133. 

 cooki, Aphis, 100. 

 cooleyi, Chermes, 151. 

 cornifoliae, Aphis, 100. 

 coryli, Myzocallis (Aphis, Callip- 

 terus), 25. 



corylinum, Rhopalosiphum, 81. 

 coweni, Chermes, 151. 

 coweni, Phyllaphis (Pemphigus), 13. 

 crataegifolii, Aphis, 100. 

 crueis, Thomasia, 36. 

 Cryptosiphum, 13. 



tahoense, 13. 

 cucurbitae, Macrosiphum (Siphono- 



phora), 62. 



cupressi, Cerosipha, 137. 

 cynosbati, Myzus (Nectarophora), 75. 



D 



davidsoni, Myzocallis, 24, 178. 

 dentatus, Laclmus, 45. 

 destructor, Macrosiphum, 66. 

 dianthi, Rhopalosiphum, 85. 

 dirhodum, Macrosiphum (Aphis), 63. 

 discolor, Myzocallis (Callipterus) , 25. 

 Drepanaphis, 18. 



acerifolii, 18. 

 Drepanosiphum, 17. 



acerifolii, 18. 



platanoides, 17. 



dryophila, Vacuna (Aphis, Chaito- 

 phorus), 150. 



E 

 Eichocliaitophorus, 33. 



populifolii, 33. 

 Eriosoma, 148. 



americana, 148. 



languinosa, 149, 179. 



lanigerum, 149. 



pyricola, 149. 

 Essigella, 44. 



californica, 44. 

 essigi, Myzocollis, 27. 

 Eucallipterus, 20. 



arundicolens, 24. 



flava, 20. 



tiliae, 21, 178. 

 Euceraphis, 19. 



betulae, 19, 178. 



flava, 20. 



gillettei, 20. 

 euonomi, Aphis, 101. 



fagi, Phyllaphis, 13, 178. 



ferrisi, Laclmus, 47. 



flava, Eucallipterus (Euceraphis), 20. 



flocculosa, Pterocomma (Melanoxan- 

 thus), 40. 



foeniculi, SipJwcoryne, 132. 



fragaefolii, Myzus, 75. 



fraxini-dipetalae, Prociphilus (Pem- 

 phigus), 146. 



frigidae, Aphis, 105. 



frigidae, Macrosiphum, 61. 



Fullawaya, 35. 

 saliciradicis, 35. 



G 



galeopsidis, Phorodon, 81. 

 gillettei, Eueeraphis, 20. 

 glehnus, Lachnus, 47. 

 godetiae, Myzus, 85. 

 gossypii, Aphis, 100. 

 gossypii, Aphis, 105, 179. 

 granarium, Macrosiphum (Aphis), 64, 

 178. 



H 



hederae, Aphis, 106. 

 heraclei, Aphis, 107. 

 heucherae, Macrosiphum (Sipliono- 



phora), 64. 



hippophoaes, Rhopalosiphum, 81. 

 houghtonensis, Aphis, 107. 

 howardi, Ehopalosiphum, 86. 

 humuli, Phorodon (Aphis), 79. 

 Hyadaphis, 132. 



pastinacae, 132. 



umbellulariae, 133. 



hyalinus, Myzocallis (Callipterus), 26. 

 Hyalopterus, 130. 



arundinis, 130, 179. 



Idiopterus, 56. 

 nephrelepidis, 56. 



jasmini, Macrosiphum (Nectaro- 



phora), 64. 

 juglandicola, Chromaphis (Lachnus, 



Callipterus), 28. 



juglandis, Callipterus (Aphis), 28. 

 junipcri, Lachnus, 50. 



L 

 Lachniella, 50. 



tujafilinus, 50. 

 Lachnus, 45. 



abietis, 47. 



alnifoliae, 20, 22. 



calif ornicus, 44. 



dentatfts, 45. 



ferrisi, 47. 



glehnus, 47. 



juglandicola, 28. 



juniperi, 50. 



