FOOD PLANTS OF THE APHIDS. 189 



Pineiis pini (L. Macqu.) CB. (Anisophleba pini Koch, 1857). 

 ' ( ? Chermes o'btectus Ratz 1844) (orientalis Dreyfus 

 1888). Borner, 1908a, p. 206. 

 Rhisobius pini Burmeister. Kaltenbach, 1843, p. 208. 

 Schisoneura fuliginosa ( ? A. pini maritimae Dufour). Buckton, 3, 

 p. 97. 

 P. sp. 

 Aphis pilicornis Hartig. Hartig, 1841, p. 369. "Auf der Fichte.'' 

 Aphis? pinicolens Fitch. Thomas, 1879, P- 102. 

 Chaitophorus pinicolens (Fitch). Hunter, 1901, p. 88. 

 Essigella (Lachniis) califoiiiiciis (Essig). Del Guercio. Essig, 1909, 



P- 74- 

 Holzncria (PciupJiigus) poschingeri (Holzner) Licht. Lichtenstein, 



La Flore. 

 Lachnus agilis Kalt. Gillette, igcga, p. 385. 

 Lachnus cnrtipilosus Mordwilko. Mordwilko, 1899, p. 399. 

 Lachnus pinciis Mordwilko. Mordwilko. 1899, pp. 359, 399. 

 Lachnus piuihabifans Mordwilko. Mordwilko, 1899, pp. 48, 399.. 

 Lachnus tacniatoidcs. Mordwilko, 1899, pp. 316, 526 and 399. 

 Lachnus sp. Gillette. Gillette, i9C9a, p. 385. 

 Pemphigus degeeri. Kalt. Kaltenbach, 1843, p. 186. 



PSEUDOTSUGA. 



P. Douglasii Carr (mucronata). Red fir. 

 Chennes cooleyi Gillette. Gillette, 1907b, p. 6. 

 Chcnncs cooleyi var. coweni Gillette. Gillette, 1907b, p. 10. 

 Chermes coii'eni Gillette. Davidson, 1909, p. 299. 



TAX US. Yew. 

 T. baccata L. Irish Yew. 



Chermes taxi Buckton. Buckton, 1886, p. 327. Schouteden 1906c, 

 P- (6). 35- "a Coccid according to Cholodkovsky." 



THUJA. Arbor vitae. 

 T. occidental is L. Arbor vitae. White Cedar. 

 Lachnus juniperi Degeer. Essig, 1911b, p. 543. 



TSUGA. Hemlock. 

 T. canadensis (L.) Carr (Abies canadensis Michx). 



Chermes-Drcyfusia funitectus Dreyfus (nee Chldk. 1907). Borner, 



1908a, p. 207. 

 Chermes funitectus Dreyfus. Cholodkovsky, 1907, p. 24. 



TYPHACEAE. CAT-TAIL FAMILY. 



TYPHA. (Thypha.) Cat-tail Flag. 

 T. angustifolia L. 



.^jycus persicae Pass. Passerini Flora. 

 T. iatifolia L. (major). Common Cat-tail. 



