78 Maine Agricultural Experiment Station. 1918, 



Pemphigus cornicularius Pass. Lichtenstein, 1880a. 



Pemphigus cornicularius Pass. (A. pistaciae L. auct. partim). 

 Passerini, 1863, p. 72. 



Pemphigus corniculoides Licht. Lichtenstein, 1880a. 



Pemphigus derbesi Licht. (P. pallidus Derbes). Buckton, 3, p. 128. 



Pemphigus follicularius Pass. Lichtenstein, 1880a. 



Pemphigus folliculoidcs Licht. Lichtenstein, 1880a. 



Pemphigus pallidoides Licht. Lichtenstein, 1880a. 



Pemphigus retroflexus Courchet. Lichtenstein, 1880a. 



Pemphigus semilunarius Pass. Lichtenstein, 1880a. 



Pemphigus semilunoides Licht. Lichtenstein, 1880a. 



Pemphigus utricularius Pass. Lichtenstein, 1880a. 



Pemphigus utriculoides Licht. Lichtenstein, 1880a. 

 P. vera L. 



Pemphigus coccus Buckton, 1889, p. 141. 

 P. sp. 



Ceratopemphigus zehntneri Schouteden. Schouteden, 1905, p. 188. 

 "on undetermined shrub, possibly a Pistacia." 



Pemphigus edificator Buckton. Buckton, 1893, p. 71. "found on 

 what was thought to be a variety of Pistacia terebinthae." 



Pemphigus minus Derbes. Zoological Record, 1869, p. 501. 



RHUS. 



R. diversiloba T. and G. 



Rholaposiphum rJiois Monell (howardii Wilson?). Essig, 1917a, 

 p. 334. 



R. glabra L. Smooth Sumach 



Pemphigus rhois (Fitch). Jackson, 1908, p. 203., 

 Rholaposiphum rhois Monell. Sanborn, 1904, p. 65. 



R. semilata Murray. 



Mclaphis (Schlcchtcndalia) chincnsis (Bell). Baker, 1917j, p. 385 



R. trilobata, 



Rholaposiphum rhois Monell. Gillette and Bragg, 1915, Jour. Ec. 

 Ent. p. 100. 



R. typhina L. Staghorn Sumach. 



Pemphigus rhois (Fitch). Jackson, 1908, p. 203. 

 R. vernicifera. 



Arimakia araliae Matsumura. Matsumura, 1917a, p. 363. 

 R. sp. 



Pemphigus cornicularius Pass, (pistaciae L. and Boyer). Kalten- 



bach, 1874, p. 96. 

 Pemphigus semilunarius Pass. Kaltenbach, 1874, p. 96. 

 Pemphigus utricularius Pass. Kaltenbach, 1874, p. 96. 

 Schlcchtcndalia sinensis Doubleday. Lichtenstein, La Flore. 

 Tetrancura (Aploncura) lentisci Pass. Kaltenbach, 1874, p. 97. 



