Hemiptera. 424 



31910 Gillette, C. P. 57.52 Aphis (78.8) 



1909. ■ American Snowball Louse, Aphis viburnicola n. sp. Entom. News 

 Vol. 20 p. 280—285, 1 pi. 



11 Niisslin, 0. 57.52 Aphrastasia : 15 



1909. Uber Aphrastasia pectinatae Chldk. Zeitschr. wiss. Insektenbiol. 

 Bd. 5 p. 349-353, 373—380, 6 figg. 



12 Quaintance, A. L. 57.52 Aspidiotus : 16.5 



1909. The Self-Boiled. Lime-Sulfur Mixture as a Summer Treatment for 

 the San Jos4 Scale. Jonrn. econ. Entom. Vol. 2 p. 130—135. 



13 Summers, H. E. 57.52 Aspidiotus (77.7) 



1909. The Distribution of San Jose Scale in Iowa. Journ. econ. Entom. 

 Vol. 2 p. 127—129. 



14 Cockerell, T. D. A., and S. A. Rohwer. 57.52 Atriplicia (78) 



1909. A new Gall-making Coccid on Atriplex. Proc. entom. Soc. Was- 

 hing'ton Vol. 10 p. 169 — 170. [Atriplicia n. g. gallicola n. sp.] 



(78.8,.9) 



15 Essig, E. 0. 57.62 Chaitophorus (79.4) 



1909. Aphididae of Southern California III. Pomona Journ. Entom. 

 Vol. 1 p. 98—99, 1 fig. [Chaitophorus populicola.] 



16 Burdon, E, R. 57.52 Chermes : 15 



1908. Some Critical Observations on the European Species of the Ge- 

 nus Chermes. Journ. econ. Biol. Vol. 2 p. 119 — 148, 2 pis. 



17 Burdon, E. R. 57.52 Chermes : 16.5 



1907. The Spruce-Gall and Larch-Blight Diseases caused by Chermes, 

 and Suggestions for their Prevention. Journ. econ. Biol. Vol. 2 p. 1 — 13, 

 2 figg. 



31918 Patch, Edith M. 57.52 Chermes (74.1) 



1909. Chermes of Maine Spruces. Psyche Vol. 16 p. 136—137. [3 nn. 

 spp.] 



19 Sanders, J. G. 57.52 Chionaspis : 16.5 



1909. The Euonymus Scale. (Chionaspis euonymi Comstock.) U. S. Dept. 

 Agric. Bur. Entom. Circ. No. 117, 5 pp., 2 figg. 



20 Cook, A, J. 57.62 Chrysomphalns : 16.5 



1909. The Red Scale. Pomona Journ. Entom. Vol. 1 p. 15—21, 5 



figg- 



21 Sanders, J. G. 67.52 Coccidae 



1909. Catalogue of Recently Described Coccidae — II. U. S. Dept. Ag- 

 ric. Bur. entom. techn. Ser. No. 16 p. 33—60. 



22 Sanders, J. G. 57.52 Coccidae 



1909. The Identity and Synonymy of some of our Soft Scale-insects. 

 Journ. econ. Entom. Vol. 2 p. 428—448, 2 pis. 



23 Cooiey, R. A. 57.52 Coccidae : 07 



1909. Photomicrography of the Diaspinae. Journ. econ. Entom. Vol. 2 

 p. 95—97. 



24 Sulc, Karel. 57.52 Coccidae : 14 



1909. Zur Anatomie der Cocciden. Zool. Anz. Bd. 34 p. 164—172, 

 4 figg. [Bauchdriisen. Kopf- und Analgriibchen.] 14, 77 



25 Essig, E. 0., and C. P. Baker. 57.52 Coccidae : 15.3 



1909. Host Index to Californian Coccidae. Pomona Journ. Entom. Vol. 

 1 p* 53-70. 



26 Girault, A. Arsene. 57.62 Coccidae : 15.6 



1909. Standards of the number of eggs laid by Insects VIII. Entom. 

 News Vol. 20 p. 355—357, 



27 Brick, C. 57.62 Coccidae : 16.5 



1899/1900. Das amerikanische Obst und seine Parasiten. Jahrb. Ham- 

 burg, wiss. Anst. Jahrg. 16 Beih. 3 Mitt. hot. Mus. p. 63—96. — Erganz- 

 ungen zu meiner Abhandlung uber das „ amerikanische Obst und seine 

 arasiten". Jahrg. 17 Beih. 3 p. 217—236. 

 31928 Newstead, Robert. 67.52 Coccidae : 16.5 



1908. On the Structural Characters of three Species of Coccidae Affect- 



15. L 1910. 



