88 COLORATION IN POLISTES. 



17. Mayer, A. G. 



1897. On the color and color patterns of moths and butterflies. Bull. Mus. 

 Coinp. Zool. Harv. Coll., vol. xxx, No. 4, pp. 169-256. 



18. Needham, J. G. 



1900. Some general features of the metamorphosis of the Weevil Mono- 

 Diyalius vulpeculus . Biol. Bull., Boston, pp. 179-191. 



19. Pappenheim, a. 



1901. Grundriss der Farbchemie. Zum Gebrauch bei Mikroskopischen 

 Arbeiten. Berlin, 1901, pp. 476. 



20. Radowezkowsky. Hor. Ent. Ross, VIII Bull., pp. 5, 6. 



21. Romanes, G. J. 



1897. Darwin and After Darwin, III. Post-Darwinian questions. Isolation 

 and Physiological Selection. Chicago. 



22. RouGET, A. 



Sur les coleopteres parasites des Vespides. Dijon, Mem. Acad. Sci., i, 1873, 

 pp. 160-284. 



23. Tower, W. L. 



1900. The development of the pigment and color-pattern in Coleoptera. 

 Science, n. s.,vol. xi, No. 266, pp. 175-177. 



24. DE Saussure, Henki. 



1852. Etudes sur le familledes Vespides. Paris, 1852-56. 2 vols., w. Supp. 



25. Urech, F. 



T893. Beitrage zur Kenntniss der Farbe von Insektenschuppen. Zeitschr. 

 f. wiss. Zool.' Bd. 57, pp. 306-384. 



26. Von SiEBor,D, C. Th. E. 



1871. Heitriige zur Parthenogenesis der Anthropodeh. I^eipzig, pp. 218. 



27. WalIvACE, A. R. 



1889 Darwinism. London and New York ; 16 + 494 pp- 



28. Webster, F. M. 



1898. The chinch bug; Its probable origin and diffusion, etc U. S. Dept. 

 Agri., Div. of Ent. , Bull. No. 15. Washington. 



29. Wkismann, August. 



1872. Ueber den Einfluss der Isolierung auf die Artbildung. Freiburg. 



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