64 



GEORGE B. BUCKTON. Monograph of the British Aphides. 4 vols. 

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This is the latest European work on this family, containing tables for the 

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O. W. OESTLUND. Synopsis of the Aphididae of Minnesota. <Bul. 



No. 4, Geolog. and Nat. Hist. Survey of Minn., St. Paul, 1887. 

 W. H. ASHMEAD. A generic synopsis of the Aphididae. <Entoin. 



Amer., 1889, pp. 185-189. 

 T. A. WILLIAMS. Host-plant list of North American Aphididiv. 



Spec. Bui. No. 1, Univ. Nebr., Dept. Entom., 1891. 



ALEURODIDJE. 



A. L. QUAINTANCE. Contributions toward a monograph of the 

 American Aleurodidse. <Bul. No. 8, Technical series, Div. 

 Entom., U. S. Dept. Agric., 1900, pp. 1-64. 



COCCID^E. 



V. SIGNORET. Essai sur les Cochenilles. <Ann. Soc. Entom. do 

 France, 1868-1876. 



J. H. COMSTOCK. Report on scale insects. < Annual Report of the 

 Commissioner of Agriculture for the year 1880, Washington, 1881, 

 pp. 276-349, pis. 



J. H. COMSTOCK. Second Report on scale insects, including a mono- 

 graph of the subfamily Diaspina? of the family Coccida? and a list, 

 with notes, of the other species of scale insects found in North 

 America. <C Second Report of the Cornell University Experi- 

 ment Station, 1882-83, Ithaca, N. Y., 1883, pp. 47-143, Pis. I-IV. 



W. H. ASHMEAD. A generic synopsis of the Coccidre. <Trans. 

 Amer. Entom. Soc., 1891, pp. 92-102. 



T. D. A. COCKERELL. Tables for the determination of the genera of 

 Coccidas. <Can. Entom., 1899, pp. 273-279; 330-333. 



T \ D. A. COCKERELL. A check-list of the Coccidse. <Bul. 111. St. 

 Lab. Nat. Hist., Vol. IV (1896), pp. 318-339. 



T. D. A. COCKERELL. First supplement to the check-list of the Coc- 

 cidse. <Bul. 111. St. Lab. Nat. Hist., Vol. V (1899), pp. 389- 

 398. 



T. D. A. COCKERELL. A check-list of the Nearctic Coccidai. <Can. 

 Entom., 1894, pp. 31-36. 



T. D. A. COCKERELL. Table of North American Kermes, based on 

 external characters. <Psyche, Vol. 9 (1900), pp. 44-45. 



W. NEWELL. On the North American species of the subgenera 

 Diaspidiotus and Hemiberlesia, of the genus Aspidiotus. <Con- 

 trib. Dept. Zool. Entom., Iowa St. Coll. Agric. and Mech. Arts, 

 No. 3, August, 1899. 



