APHID PESTS OF MAINE, II. WILLOW FAMILY. 95 



Chaitophorus popiili (Linn). Hunter, 1901, p. 88. 



Chaitophortts populifoliae (Fitch) "^ C. populi (Linn.) ?" Oest- 



lund, 1887, p. 39. 

 P. nigra L. Black Poplar. 



Annraphis populi Del Guercio. Del Guercio, 1909 (1910). Redia 



VIL p. 298. 

 Aphis populi L. Kaltenbach, 1874, p. 561. 

 Chaitophorus leiicomelas Koch. Passerini, 1863, p. 58. 

 Chaitophorus lettcomelas Koch., Pass. Buckton, 2, p. 135. 

 Chaitophorus lyratus Ferrari. Del Guercio, 1900, p. 119. 

 Chaitophorus nassonozi'i Mordwilko. ^lordwilko, 1899, p. 410. 

 Chaitophorus populi (Linn) Pass. (Myzaegirus Amyot) (Arcta- 



phis populi Walker). Buckton, 2, p. 142. 

 Chaitophorus versicolor Koch (Aphis populi var. Kalt) Ferrari, 



1872, p. ~6. 

 Lachnus viminalis Boyer. (Aphis). Ferrari, 1872, p. 80. 

 Pemphigus affinis Kalt. (Thecabius populneus Koch). Passerini, 



1863, p. 74- 

 Pemphigus bursarius (L.) Kalt. Kaltenbach, 1874, p. 561. 

 Pemphigus bursarius Hartig. (Eriosoma populi Mosley) 



(Aphioides bursaria Rondani). Buckton, 3, p. 118. 

 Pemphigus filaginis Boyer (gnaphalii Kalt.) (Prociphilus gnap- 



halii Koch) (Pachypappa marsupialis Koch). (ovato-oblon- 



gus Kessler). Tullgren, 1909, p. 136. 

 Pemphigus spirothecae Koch (afifinis Koch) (Puceron de 



peuplier Reaumur). Buckton, 3, p. 122. 

 Pemphigus spyrothecae Pass. Passerini, i860, p. 39. 

 Pemphigus tortuosus Rudow. Rudow, 1875, P- 248. 

 Pemphigus vesicarius Pass. Passerini, 1863, p. 76. 

 Stomaphis bobretskyi Mordwilko. Mordwilko, 1899, p. 411. 

 Stomaphis longirostris (Fab.). Del Guercio, 1907 (1908) Redia 



V, p. 344- 

 Thecabius populneus Koch. Koch, p. 295. 

 Thecabius populneus Koch. Kaltenbach, 1874, p. 562. 

 P. pyramidalis Salisb. (italica Duroi) (dilatata), Lombardy Poplar. 

 Chaitophorus leiicomelas Koch. Kessler, 1882, p. 2,7. 

 Chaitophorus nassonoivi ^Mordwilko. Alordwilko, 1899, p. 410. 

 Chaitophorus populeus (Kalt.) (Lachnus punctatus Burm?) 



(Cladobius populeus Koch). Buckton, 2, p. 137. 

 Chaitophorus populi (Linn). Pass. (Myzaegirus Amyot) 



(Arctaphis populi Walker). Buckton, 2, p. 142. 

 Cladobius populea Kalt. (Aphis.) Ferrari, 1872, p. 76. 

 Drepanosiphum smaragdinum Koch. Koch, p. 205. 

 Drepanosiphum {Aphis) tiliae Koch. Kaltenbach, 1874, p. 561. 

 Pemphigus affinis Kalt. Kaltenbach, 1874, p. 561. 

 Pemphigus bursarius Linn. Reaum (Aphis). Ferrari, 1872, p. 83. 

 Pemphigus bursarius Hartig (Eriosoma populi Mosley) 



(Aphioides bursaria Rondani). Buckton, '3, p. 118. 



