50 Hymenoptera für 191C 



Oudemans, J. Th. (1). [Ibalia Icncospoidcs, Chrysophaniis 

 dispar nieuvv voor de Nederl. fauna.] Tijdschr. Entom., D. 59 

 Versl., p. XXV— XXVI. — Entomoph. 



— (2). Zachte Winter. Entom. Berichten, T). 4, 191(), p. 275 

 bis 277. — Auch Apidae. 



Packard, C. M. Life Histories and Methods of Rearing Hessian. 

 Ely Parasites. Journ. agric. Research, vol. 6, p. o67— ^382, 1 pl. 



[Peckham, G. W. and E. G. Peckham. Wasps Social and Soli- 

 tary. XIV + 311 pp., illustrated. Houghton, Mifflin & Co., Boston 

 and New York, 1905.] 



Pennington, W. E. Notes on Rhogas terminalis Cress. Journ. 

 econ. Entom., vol. 9, p. 401 — 406, 1 pl., 1 fig. — Parasit von Noct. 



Perez, J. Sur une forme nouvelle de l'appareil buccal des 

 hymenoptercs. Proc. Verb. Soc. Sc. phys. nat, Bordeaux 1896/97 

 (1897), p. 3 — 4. — Solcnopaipa n. g., jcrtoni n. sp. aus Algier. 



Perkins, R. C. L. Noniada ruficornis (sensu lato) and its Close 

 Allies. Entom. Monthly Mag. (3), vol. 2, p. 210— 211. 



Pettey, F. W. The Codling Moth and its Control in the Western 

 Province. Sc. Bull. Dept. Agric. Union South Africa No. 9, 48 pp., 

 7 fig. — Parasit ders. : Trichogramnioidca. 



Pettit, Morley. Investigation and Instruction in Beekeeping. 

 Journ. econ. P2ntom., vol. 9, p. 406 — 411. 



Phillips, E. F. (1). Beekeeping. Rural Science Series. New 

 York: Macmillan & Co. XXII, 457 pp., 190 figg. $ 2.00. — Rev. 

 by C. Gordon Hewitt, Science N. S., vol. 44, p. 60- — 62. — Legt 

 in seinen Betrachtungen das Hauptgewicht auf die Lebensgewohn- 

 heiten usw. der Bienen. 



— (2). Professor Gossard's Theory on Fireblight. Trans, 

 mission. Journ. econ. Entom., vol. 9, p. 362 — ^363. — Honigbienen 

 sind die Überträger des Birnbaum-Mehltau. 



— (3). The Purpose of College Beekeeping. Journ. econ. 

 Entom., vol. 9, p. 413—417. 



Picard, F. Sur quelques laboulbeniales d'Europe. Bull, scient. 

 France Belgique (7), T. 50, p. 440 — 446. — Insektenparasiten, 

 auch bei Formicid. 



Placzek, B. Die Waldameise gegen die Blutlaus. Österr. Forst- 

 Jagd-Zeitg., Jahrg. 33, 1915, p. 252, 275. — Formica rufa. 



Porter, B. A. The Host of Ablcrus clisiocampac Ash. Entom. 

 News, vol. 28, p. 186. — Malacosonia americana. 



Poulton, E. B. Nest-Building Instincts of Bee of the Genera 

 Osmia and Anthidimu. Trans, entom. Soc. London 1916, p. XXVIII 

 bis XLVII. 



Priest, S. siehe Maxwell, usw. 



Puhlmann, E. Pseudogonalos hahni Spin. Abhdlgn. Ver. nat. 

 Erforsch. Niederrheins, Bd. 2, p. 50. 



Quinn, Charles W. Scientific Queen Rearing. Science N. S., 

 vol. 43, p. 939 — 941. — Verhalten des Farbenfaktors bei der Ver- 



