Hemiptera 



44 



33575 Baer, W. 57.52 Piiieus : 16 5 



lt)10. Ueber die Fichtengenerationen von Pineus pini Koch. Tharand. 

 forsll. Jahrb. Pd. 61 p. 89—94. 



76 Pierautoui, ümheito. 57.52 Psendococcus : 15 



1918. Struttura ed evoluzione dell' organo simbiotico di Pseudococcus 

 citri Risso, e ciclo biolosico del Coccidomyces dactylopli Buchxer. Ä.rch. 

 Protisteiikde. Jahrg. 31 p. 300—316, 3 tav. 



77 Wheeîer, William Morton. 57.52 Pseodococcns (79.1) 



1912. Notes on a Mistletoe Ant. Journ. X. Y. eutoiu. Soc. Vol. 20 p. 

 130 — 131. [Pseudococcus pJioradendri Cockerel}, n. sp.] 



78 Newstead, Robert. 57.52 Pseudoeriopsylla (68.9) 



1911. On a New Genus of P^yliidae from Nyasaland. Bull, entom Re- 

 search Yol. 2 p. 105 — 106, 1 fig. [Ps. n. g., ni/asae n. sp.] 



79 . . . 57c52 Psylla : 16.5 



1910. La Psylla pyrisuga. îfaturaliste Paris Anu. 32 p. 47—48. 



80 Kodgkiss, H. E. 57.52 Ps^ylla : 16.5 



1913. Fall Spraving for the Pear Psylla. Jôurn. ecoii. Entom. VoL 6 p. 

 248-244. 



81 Sale, Karel. 57.52 Psylla (403) 



1913. Zur Kenntnis einiger Psyna-Aiten aus dem Ungarischen National- 

 Muséum m BudaDest. Ann. Mus. nation, hungar. Yol. 11 p. 409—485, 6 

 figg. [2 nn. spp.] (43.12,.92,.94, 47.1,.4, 52.4, 57.1, .6, 93) 



82 van der Goot, P. 57,52 Psyliidae (492) 



1912. Naamlijst van inlandsche Psyliidae. Entom. Berichten 1). 8 p. 

 281—285. 



83 Cra^vford. D. L. 57.52 Psyliidae (91.4) 



19 IB. New Genera and Species of Psvllidas from the Philippine Islands. 

 Philippine Jouru. Sc. D Yol. 8 p. 298-801, i pl., 1 fig. [5 nn. spp. 

 in: Paurocephula n. g., Dynopsylla n, g., Pauropsylla (1 n. var.), Epipsylla, 

 EriphQle7'us.\ 



S3584 Edwards, James. 57.52 P.-jyllopsis (42.27) 



1918. A new species of Psyllopsis F. Loew from Britain. Entom, monthlv 

 Matr. (2) Yol. 24 p. 251—252, 3 figg. [P. distinguenda.] 



85 Dayidson, J. 57 52 Schlzonenra ; 14 



1918. The Structure and Biology of Schisoneura lanigera, Hausmakn or 

 Woolly Aphis of the Apple Tree. — Part I. — The Apterous Viviparous 

 Female. Quart. Journ. micr. Sc. Yol. 58 p. 658—701. 5 pis., 4 fi^s. 

 14.12..29,.31,.316-.35,.39,.65,.67,.73,.77,.73,.93,.95, 96,.98, 15.--^, 6 ~ 



86 Patch, Edith M. 57.52 Schizoneura î 14.98 



1913. A Study in Antennal Variation. (Pap. Maine Agric. Exper. Stat. 

 Entom. No. 62). Ann. entom. Soc. Amer. Yol. 6 p. 233—286, 4 pis. [In 

 Schizonewa.'] 



87 Froggatt, Walter W. 57.52 Schizoneura : 16.5 



1912. Woolly Aphis, or American Blight. {Schizoneura lanigera^ Haus- 

 MAN.) Agric. Gaz. N. S. Wales Yol. 23 p. 520—528. 



88 Patch, Edith M. 57.52 Schizoneura : 16.5 



1912/13. Elm Leaf Curl and Woolly Apple Aphid. (Pap. Maine agric. 

 Exper. Stat. Entom. No. 58). Bull Maine agric. Exper. Stat. — 28th 

 ann. Rep. Maine agric. Exper. Stat. p* 235—258, 3 pis., 9 figg. — A 

 Note on Two Elm Leaf Aphides. (Pap. Maine agric. Exper. Stat. Entom. 

 No. 60). Journ. econ. Entom. Yol. 6 p. 316 — 818, 8 fi^g. 



89 Moore, W. 57.52 Toxoptera : 16.5 



1918/14. The Wheat Louse {Toxoptera graniinum). Agric. Jouru. Union 

 South Africa Yol. 6 p. 482—482, 767—772, 973-977, 11 figg. — Yol. 7 

 p, 50-60. 



90 Hewitt, C. Gordon. 57.52 Toxoptera (T) 



1913. The Spring Grain Aphis or „Green Bug." Canad. Entom. Yol. 

 45 p. 77—80. 16.5 (71.2, 76.4, 77.2) 



83591 Sulc, Karel. 57.52 Trioza (4) 



1912/13. Monographia generis Trioza Foerster. Species regionis palae- 

 arcticae. Sitz.-Ber. böhm. Ges. Wiss. math.-nat. Cl. 1911 No. 5, 34 pp., 



