Hemiptera 44 



S3575 Baer, >V. 57.52 Pineus : 16 5 



1910. Ueber die Fichtengenerationen von Pineus pint Koch. Tharaud. 

 forstl. Jahrb. Pd. 61 p. 89—94. 



76 Pierantoni, Umberto. 57.52 Pseudococcas : 15 



1918. Struttura ed evoluzione dell' organo simbiotico di Pseuducoccus 

 citri Ttisso, e ciclo biologico del Coccidomyces dactylopii Buchner. Arch. 

 Protistenkde. Jahrg. 31 p. 300—816, 3 tav. 



77 Wheeler, William Morton. 57.52 Pseudococcus (79.1) 



1912. Notes on a Mistletoe Ant. Journ. N. Y. entom. Soc. Vol. 20 p. 

 130 — 134. [Pseuducoccus phoradendri Cockekeli. n. sp.] 



78 Newstead, Robert. 57.52 Pseudoeriopsylla (68.9) 



1911. On a New Genus of Psyllidae from Nyasaland. Bull, eutora Re- 

 search Vol. 2 p. 105—106, 1 fig. [Ps. n. g.. nyasae n. sp.] 



79 . . . 57.52 Psylla : 16.5 



1910. La Psylla pytisuga. Naturaliste Paris Aun. 32 p. 47 — 48. 



80 Hodgkiss, H. E. 57.52 Psylla : 16.5 



1913. Fall Spraying for the Pear Psylla. Journ. econ. Entom. Vol. 6 p. 

 213-244. 



81 Sulc, Karel. 57.52 Psylla (403) 



1913. Zur Kenntnis einiger Psylla- Arten aus dem Ungarischen National- 

 Museum in Budapest. Ann. Mus. nation, hungar. Vol. 11 p. 409—435, 6 

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



82 van der Uoot, P. 57.52 Psyllidae (492; 



1912. Naamlijst van iDlandsche Psyllidae. Entoni. Berichten I). 3 p. 

 281—285. 



83 Crawford, I). L. 57.52 Psyllidae (91.4) 



I9!3. New Genera and Species of Psvllidae from the Philippine Islands. 

 Philippine Journ. Sc. D Vol. 8 p. 293-301, 1 pi., 1 fig. [5 nn. spp. 

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

 Euphalerus.] 

 "83584 Edwards, James. 57.52 Psjllopsis (42.27) 



1913. A new species of Psyllopsis F. Loew from Britain. Entoni. monthly 

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



85 Davidson, J. 57.52 Schizoneura : 14 



1913. The Structure and Biology of Schizoneura lanigera, Hausmann or 

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

 Female. Quart. Journ. micr. Sc. Vol. 58 p. 653—701, 5 pis., 4 figg. 

 14.12..29,.31,.316-.35,.39,.65,.67,.73,.77,.78,.93,.95, 96,.98, 15.3,6 



86 Patch, Edith M. 57.52 Schizoneura : 14.98 



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

 Entom. No. 62). Ann. entom. Soc. Amer. Vol. 6 p. 283—236, 4 pis. [In 

 Schizoneura.] 



87 Froggatt, Walter W. 57.52 Schizoneura : 16.5 



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

 man.) Agric. Gaz. N. S. Wales Vol. 23 p. 520—528. 



88 Patch, Edith M. 67.52 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 

 anu. 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. Vol. 6 p. 316— 31S, 8 fi^g. 



89 Moore, W. 57.52 Toxoptera : 16.5 



1913/14. The Wheat Louse (Toxoptera graminum). Agric. Journ. Union 

 South Africa Vol. 6 p. 482—492, 767—772, 973-977, 11 figg. — Vol. 7 

 p. 50-60. 



90 Hewitt, C. Gordon. 57.52 Toxoptera (7) 



1913. The Spring Grain Aphis or „Green Bug." Gauad. Entom. Vol. 

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



83591 Sale, Karel. 57.52 Trioza (4) 



1912/13. Monograph'. a generis Trioza Foerster. Species regionis palae- 

 arcticae. Sitz.-Ber. hohm. Ges. Wiss. math.-uat. CI. 1911 >'o. 5, 34 pp., 



