No. 34-] HEMIPTERA OF CONNECTICUT: APHIDIDAE. 33 1 



P. castaneae (Haldeman). Chermes castaneae Haldeman. 



Am. Jour. Sci., ix, Ser. 2, 108, 1850. 



New Haven, 11 Aug., 1910 (S. N. Spring). 

 P. foveola Pergande. 



Proc. Dav. Acad. Sci., ix, 200, 1904. 



On hickory, Greenwich, 12 Aug., 1909. 

 P. vitifoliae Fitch, vastatrix Planchon. 



Nox. and Ben. Ins. N. Y., i, 158, 1855. 



On grape, Westport, 25 Aug., 1905. 



Aphid Literature Cited. 



Baker, A. C. 191 5. The Woolly Apple Aphis. U. S. Dept. Agriculture, 

 Report No. loi. 



1916b. A Review of the Pterocommini. Canad. Ent, pp. 280-289. 



191 6h. The Identity of Eriosoma querci Fitch. Ent. News, vol. 27, pp. 

 359-366. 



191 7f. Eastern Aphids, New or Little Known, Part ii. Jour. Economic 

 Entomology, vol. 10, pp. 420-433. 



1917J. On the Chinese Gall (Aphididae-Homoptera). Ent. News, vol. 

 28, pp. 385-393. 



1919c. Fitch's Thorn Leaf Aphis. Proceedings of the Biological Society 

 of Washington, vol. z^, PP- 185-186. 



I9i9h. Neotoxoptera violae Theobald and its Allies. Bulletin of Ento- 

 mological Research, vol. x, pt. i. 



1920b. Generic Classification of the Hemipterous Family Aphididae. 

 U. S. Department of Agriculture, Bulletin No. 826. 

 Baker, A. C. and Davidson, W. M. I9i6e. Woolly Pear Aphis. Jour. 

 Agric. Research, vol. 6, No 10. 



1917c. A Further Contribution to the Study of Eriosoma pyricola the 

 Woolly Pear Aphis. Jour. Agric. Research, vol. 10, pp. 65-74. 

 Baker, A. C. and Turner, W. F. 191 5. The Brown Grape Aphid. Science, 



vol. 41, p. 834. 

 . 1916a. Morphology and Biology of the Green Apple Aphis. Jour, of 

 Agric. Research, vol. 5, pp. 955-994. 



I9i6f. Some Intermediates in the Aphididae. Proc. Ent. Soc. Washing- 

 ton, vol. 18, pp. 10-14. 



I9i9g. Apple-Grain Aphis. Jour. Agric. Research, vol. 18, No. 6, pp. 



311-324- 

 Borner, Carl. 1908. Eine Monographische Studie iiber die Chermiden. 

 Arbeiten aus der Kaiserlichen Biologischen Anstalt fiir Land-Forst- 

 wirtschaft. 

 Cholodkovsky, N. A. 1915. Chermes Injurious to Conifers. Published by 

 the Department of Agriculture of the Central Board of Land Adminis- 

 tration and As-riculture. 

 Comstock, John Henry. 1918. The Wings of Insects, pp. 285-289. 

 Davis. J. J. 1908. A New Aphid on the Virginia Creeper. Entomological 

 News, vol. 19, pp. 143-146. 

 1909a. Biological Studies on Three Species of Aphididae. U. S. Dept. 

 of Agriculture, Bur. of Entomology, Technical series, No. 12, Part yiii. 

 1900b. Studies on Aphididae ii. Annals of the Entomological Society 



of America, vol. 2, pp. 30-42. 

 1910b. A List of the Aphididae of Illinois, with Notes on some of the 



Species. Jour. Ec. Ent., vol. 3, pp. 482-409. 

 1911a. Williams' "The Aphididae of Nebraska," A Critical Review. 

 University Studies, Lincoln, Nebraska, vol. 9, No. 3. 



