Literaturverzeichnis. 213 



Pampel, W. (1914), Die weiblichen Geschlechtsorgane der Ichneumoniden. Zeitschr. 



für wissenschaftl. Zoologie, Bd. 108, 1914, S. 290-357. 

 Pantel, J. et Sinety, R. de (1908), Sur l'apparition de mäles et d'hermaphrodites 



dans les pontes parthenogenetiques des Phasmes. Comptes rendus de l'Academie 



des Sciences. Paris. T. 147, 1908, p. 1358—1360. 

 Papanicolau, G. (1910 a), Über die Bedingungen der sexuellen Differenzierung bei 



Daphniden. Biolog. Centralbl., Bd. 30, 1910, S. 430—440. 



— (1910 b), Experimentelle Untersuchungen über die Fortpflanzungsverhältnisse der 



Daphniden (Simocephalus vetulus und Moina rectirostris var. Lilljeborgii). 

 'Biolog. Centralbl., Bd. 30, 1910, S. 689—692, 737—750, 753—774, 785—802. 



Parker, W. B. (1913), The red spider on hops in the Sacramento Valley of Cali- 

 fornia. U. S. Department of Agriculture, Bureau of Entomology, Bull. 117, 1913. 



Patch, E. M. (1912), Pemphigus tesselata (acerifolii). Annual Report of the Maine 

 Agricultural Experiment Station, Vol. 27, 1912, p. 244—248. 



Fatterson, J. T. (1917 a), Studies on the Biology of Paracopidosomopsis. I. Data 

 on the Sexes. Biological Bulletin of the Marine Biological Laboratory Woods 

 Hole. Mass. Vol. 32, 1917, p. 291—305. 



— (1917b), Studies on the Biology of Paracopidosomopsis. III. Maturation and 



Fertilization. Biolog. Bull, of the Marine Biological Laboratory Woods Hole. 

 Mass. Vol. 33, 1917, p. 57—66; 2 pl. 



— and Porter, L. T. (1917), Studies on the Biology of Paracopidosomopsis. 



IL Spermatogenesis of Males Reared from Unfertilized Eggs. Biolog. Bull, of 



the Marine Biological Laboratory Woods Hole. Mass. Vol. 33, 1917, p. 38 



—50; 2 pl. 

 Pauly, A. (1892), Über Jungfernzeugung bei Cimbex saliceti Zdd. Forst l.-naturw. 



Zeitschr., Bd. 1, 1892, S. 165—167. 

 *Pellew, C. and Durham, F. M. (1916), The genetic behavior of the hybrid 



Prämula Kewensis, and its allies. Journ. of Genetics, Vol. 5, 1916, p. 159—182. 

 Perkins, R. C. L. (1905), Leaf Hoppers and their Natural Enemies. Report of 



the Experiment Station of the Hawaiian Sugar Planters' Association, Division 



of Entomology, Bull. No. 1. Honolulu 1905. p. 1—205. 



— (1906), Leaf-Hoppers and their Natural Enemies. (Pt. VIII Encyrtidae, Eulo- 



phidae, Trichogrammidae.) Report of the Experiment Station of the Hawaiian 

 Sugar Planters' Association, Division of Entomology, Bull. No. 1, Part 8. Hono- 

 lulu 1906. p. 241—267. 



— (1907), Parasites of Leaf-Hoppers. Report of the Experiment Station of the Ha- 



waiian Sugar Plauters' Association. Division of Entomology, Bull. N. 4. Honolulu 



1907. p. 1—59. 



- (1912), Parasites of Insects Attacking Sugar Cane. Report of the Experiment 

 Station of the Hawaiian Sugar Planters' Association, Entomological Series, Bull. 10. 

 Honolulu 1912. 27 pp. 



Petrunkewitsch, A. (1902), Die Reifung der parthenogenetischen Eier von Arte- 

 mia salina. Anatom. Anz., Bd. 21, 1902, S. 256—263. 



Pfeffer, W. (1913), Die Ichueumouiden Württembergs mit besonderer Berücksich- 

 tigung ihrer Lebensweise. I. Teil. Jahreshefte des Vereins für vaterländische 

 Naturkunde in Württemberg, Bd. 69, 1913, S. 303-353. 



Phillips, E. F. (1903), A Review of Parthenogenesis. Proceedings of the American 

 Philosophical Society, Vol. 42, 1903, p. 275-345. 



Phillips, W. J. (1908), Notes on Toxoptera graminum and Parthenogenesis of one 

 of its Parasites. Proceedings of the Entolomogical Society of Washington, Vol. 10, 



1908, p. 11-13. 



— (1916), Macrosiphum granarium, the English Grain Aphis. Journal of Agricultural 



Research, Vol. 7, 1916, p. 463-480. 



