Hemiptera. 422 



31875 Essig, E. 0. 57.52 Aleyrodes : 16.5 



lyOO. Combating the Citrus Mealv Bug. Pomona Jouru. Entom. Tol. 1 



p. sy- 91. 



76 Cockeiell, T. D. A. 57.52 Aleyrodes (72.5) 



1909. Description of a Mexican Aleyrodes. Entom. News Vol. 20 p. 216. 



77 Back, E. A. 57.52 Aleyrodes (75.9) 



1909. A New Enemy of the Florida Orange. Journ. ecou. Entom. Vol.. 

 2 p. 448 — 449. [Aleyrodes howardi.] 



78 Qnaintance, A. L. 57.52 Aleyrodidae (7) 



1909. A New Genus of Aleyrodidae, with Remarks on Aleyrodes nubifera 

 Berger, and Aleyrodes citri Riley and Howard. U. S. Dept. Agrlc. Bnr. 

 Entom. techn. Ser. No. 12 p. 169 — 174, 2 figg. [Paraleyrodes n. g. pro 

 Aleyrodes perseae.] (729.1, 75.6,9, 76.2,.3) 



79 Leonard!, G. 57.52 Aonldiella (45) 



1907. Notizie sopra una cocciniglia degli agrumi nuova per 1' Italia 

 (Aonidiella aurantii Mask.) Ann. Scuola super. Agric. Portici (2) Vol. 7 

 No. 4, 20 pp., 20 figg. 



80 Borner, Carl. 57.52 Aphididae 



1JJ09. tJber Chermesiden. Zool. Anz. Bd. 34 p. 554-560, 1 fig. [Cna- 

 phalodes lapponicus. Zur Nomenclatur der Phylloxerengaltungen.] 



81 Boiiflirli, lUauca. 57. r>- Aphididae 



ltf(j9. Intorno ad ua Fillosserinino del Populus alba. Ileiid. Accad. Lin- 

 cei (5) Vol. 18 Sem. 2 p. 397—403. [Pseudochermes popuU n. nom. pro 

 Chermes p. Burner non Del Guercic] 



82 Mop;i;BHjKO, AJieKcaH;i;p'B. Mordwilko, A. 67.62 Aphididae 



11)09. TaCaimbi A-na onpeAtJieHia rp;^Tin'B h poAOBi> TJiefi (ceM. Aphididae 

 Passerini). 'tableaux pour servir a la determination des >;;roupes et 

 des genres des Aphididae Passerini, Earcro;i,H. sooJi. Mya. Aua;!];. HayKX 

 Cn6. Ann. Mus. zool. Acad. Sc. St.-Petersbourg T. 13 p. 353—384. 

 81883 Hayhurst, Paul. 57.62 Aphididae : 07 



1909. Aphid technique. (Contrib. Entom. Lab. Bussey Inst. Harvard 

 Univ. No. 3). Entom. News Vol. 20 p. 255—260. 



84 Morgan, T. H. 57.62 Aphididae : 11.62 



1909. Sex Determination and Parthenogenesis in Phylloxerans and Aphids. 

 Science N. S. Vol. 29 p. 234-237. 



85 Stevens, N. M. 57.52 Aphididae : 14.63.1 



1909. Studies on the Germ Cells of Aphids. Publ. 51 Carnegie Inst, 

 Washington, 28 pp., 4 pis. [Relation of species as revealed by germ 

 cells. Mendel's law and chromosome individuality. Sex determination.] 



86 Stevens, N. M. 57.52 Aphididae : 14.63.1 



1909. An Unpaired Heterochrosome in the Aphids. Journ. exper. Zool. 

 Vol. 6 p. 115-124, 2 pis. 



87 Sclioutenden, H. 67.52 Aphididae : 14.84 



1909. Over het bijoog der aphiden. Handl. 13. vlaamsch. ujit.-geneesk, 

 Congr. jt. 1S6-15>0. 



88 Baitholomew, C. E. 57.52 Aphididae : 14.99 



1908. A Study in Wing Veination. Proc. Iowa Acad. Sc. , ol. 15 p. 

 173—175, 7 figg. 



89 Akerman, Conrad. 57.52 Aphididae : 15 



1909. Aphides and their Enemies. 32d Trans. Rep. Ealing scient. micr. 

 Soc. p. 20—23. 



90 Borner, Carl. • 57.52 Apliididae : 15 



1909. Zur Biologie und Systematik der Chermesiden. Biol. Centralbl. 

 Bd. 29 p. 118—126, 129-146, 3 figg. 



91 Borner, Carl. 57.52 Aphididae : 15 



1909. tJber Chermesiden. Zool. Anz. Bd. 34 p. 498—611, 7 figg. [GiU 

 letea n. g. pro Chermes cooleyi. Junglarven.] 

 31892 Davis, John June. 67.52 Aphididae : 15 



1909. Biological Studies on Three Species of Aphidiae. U. S. Dept. 

 Agric. Bur, Entom. techn. Ser. No. 12 p. 123—168, 



15. I. 1910. 



