LITERATURE 7 ! 



Poulton, E. B. 1885. Further Notes upon the Markings and Attitudes <>!" 



Larva?. Trans. Ent. Soc. London, pp. 281-329, pi. 7. 

 Poulton, E. B. 1887. An Enquiry into the Cause and Extent of a Special Colour-Relation 



between Certain Exposed Pupa? and the Surfaces which immediately surround them. 



Phil. Trans. Roy. Soc. London, vol. 178, pp. 311-441, pi. 26. 



Chapman, T. A. 1888. On Melanism in Lepidoptera. Ent. Mon. Mag., vol. 25, p. 40. 

 Dixey, F. A. 1890. On the Phylogenetic Significance of the Wing-Markings in certain 



Genera of the Nymphalidae. Trans. Ent. Soc. London, pp. 89-129, pis. 1-3. 

 Merrifield, F. 1890. Systematic temperature experiments on some I.rpidnpirrn in all 



their stages. Trans. Ent. Soc. London, pp. 131-159,' pis. 4, 5. 

 Poulton, E. B. 1890. The Colours of Animals. 13 + 360 pp., i pi., 66 figs. New York. 



D. Appelton & Co. 

 Seitz, A. 1890, 1893. Allgemeine Biologic der Schmetterlinge. Zool. Jahrb., Abth. Syst., 



etc., bd. 5, pp. 281-343; bd. 7, pp. 131-186.* 

 Coste, F. H. P. 1890-91. Contributions to the Chemistry of Insect Colors. Entomol- 



ogist, vol. 23, pp. 128-132, etc.; vol. 24, pp. 9-15, etc. 



Hopkins, F. G. 1891. Pigment in Yellow Butterflies. Nature, vol. 45, pp. 197-198. 

 Merrifield, F. 1891. Conspicuous effects on the markings and colouring of Lepidoptera 



caused by exposure of the pupae to different temperature conditions. Trans. Ent. 



Soc. London, pp. 155-168, pi. 9. 

 Urech, F. 1891. Beobachtungen iiber die verschiedenen Schuppenfarben und die zeitliche 



Succession ihres Auftretens (Farbenfelderung) auf den Puppenfliigelchen von Vanessa 



urticae und lo. Zool. Anz., jhg. 14, pp. 466-473. 

 Beddard, F. E. 1892. Animal Coloration. 8 + 288 pp., 4 pis., 36 figs. London, Swan, 



Sonnenschein & Co. New York, Macmillan & Co. 

 Gould, L. J. 1892. Experiments in 1890 and 1891 on the colour-relation between certain 



lepidopterous larvae and their surroundings, together with some other observations 



on lepidopterous larvae. Trans. Ent. Soc. London, pp. 215-246, pi. n. 

 Merrifield, F. 1892. The effects of artificial temperature on the colouring of several species 



of Lepidoptera, with an account of some experiments on the effects of light. Trans. 



Ent. Soc. London, pp. 33-44. 

 Poulton, E. B. 1892. Further experiments upon the colour-relation between certain 



lepidopterous larvae, pupae, cocoons and imagines and their surroundings. Trans. 



Ent. Soc. London, pp. 293-487, pis. 14, 15. 

 Urech, F. 1892. Beobachtungen liber die zeitliche Succession der Auftretens der Farben- 



felder auf den Puppenfliigelchen von Pieris brassica?. Zool. Anz., jhg. 15, pp. 



284-290, 293-299. 

 Urech, F. 1892. Ueber Eigenschaften der Schuppenpigmente einiger Lepidopteren- 



Species. Zool. Anz., jhg. 15, pp. 299-306. 

 Weismann, A. 1892, 1898. The Germ-Plasm. Trans, by W. N. Parker and H. Ronn- 



feldt. See pp. 399-409, on climatic variation in butterflies. 

 Dixey, F. A. 1893. On the phylogenetic significance of the variations produced by differ- 



ence of temperature in Vanessa atalanta. Trans. Ent. Soc. London, pp. 69-73. 

 Merrifield, F. 1893. The effects of temperature in the pupal stage on the colouring of 



Pieris napi, Vanessa atalanta, Chrysophanus phlceas, and Ephyra punrturia. Trans. 



Ent. Soc. London, pp. 55-67, pi. 4. 

 Poulton, E. B. 1893. The Experimental Proof that the Colours of certain Li-pidopterous 



Larvae are largely due to modified plant Pigments derived from Food. Proc. Roy. 



Soc. London, vol. 54, pp. 417-430, pis. 3, 4. 

 Urech, F. 1893. Beitrage zur Kenntniss der Farbe von Insektenschuppen. Zeits. wiss. 



Zool., bd. 57, pp. 306-384. 



