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XIX. Further experiments upon the colour-relation between 

 certain lepidopteroas lame, pup(e, cocoons, coid 

 imagines and tJieir sarroundinqs. By Edward 13. 

 PouLTON, M.A., F.Pt.S., F.L.S"^^, &c. 



[Eead October 5tli, 1892.] 

 Plates XIV. & XV. 



CONTENTS. 



A. Introductory. 



B. Experiments upon Lepidopteuous LapvV.^, 1886 — 1892. 



1. Mamestra hrassicie, Hadcna oleracea, and Eiqilexia lucipara, 1886. 



2. ,, persicaria, 1886. 



3. Catocala sijonsa, 1888. 



4. ,, electa, 1889. 

 6. „ elocata, 1889. 



6. „ fmxini, 1890. 



7. Ennomos angularia, 1886. 



8. Selenia lunaria, 1880. 



9. Ephijra oiiiicronaria, 1887. 



10. Melanippc montanata, 1887. 



11. Boarmia roboraria, 1888. 



12. Geometra papilionurla, 1888 and 1889. 



13. Phigalia pilosaria, 1890. 



14. Crocalis eUnguaria, 1887 and 1888. 



15. Hemerophylla ahruptaria, 1889. 



16. Eumia cratcegata, 188(J, 1887, and 1888. 



17. Amphidasis betularia, 1886, 1889, and 1892. 



C. Experiments upon Lepiuopterous Pup/E, 1887 — 1892. 



1. Vanessa urticce, 1887, 1888, and 1892. 



2. „ io, 1888, 1891, and 1892. 



3. ,, atalanta and Cijnthia cardui, 1892. 



4. ,, pohjchloros, 1888. 



5. Argynnis piupiliia, 1888. 



6. Fieris hrassicce and P. rupee, 1888. 



D. Experiments upon the Cocoons of Lepidoptera. 



E. Experiments upon Lepidopterous Imagines, 1891. 



1. Gnoplios ohsciirata, 1891. 



F. Conclusions. 



G. Appendix. An account of the various receptacles used intheexpcri- 



iiicuts on piipce (C). 



TRANS. ENT. SOC. LOND. 1892- PART IV. (dKC.) 



