1895.] L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. 363 
II. Henley Grose Smith. Appendix v of “ The Head-Hunters 
of Borneo” by Carl Bock. English edition, 1881. “List of Sumatra 
Butterflies.” Enumerates 226 species. 
III. P. C. T. Snellen, Tijd. voor Ent., vol. xxxiii, p. 215 (1890), 
“ Lijst van Lepidoptera op Sumatra.” Enumerates 48 species. 
IV. Dr. B. Hagen. “ Die Pflanzen- nnd Tliierwelt von Deli anf 
der Ostkiiste Sumatra’s.” Separat-Abdruck ans “ Tijdschrift van 
liet Koninklijk Hederlandsch Aardrijkskundig Genootschap.” Jaar- 
gang 1890. Leiden.— E. J. Brill. Enumerates 323 species. 
V. P. C. T. Snellen. “ Midden-Sumatra.” Lepidoptera (1892). 
Enumerates 104 species. 
YI. Dr. B. Hagen. Iris, vol. vii, p. 1 (1894). “ Verzeichniss der 
von mir auf Sumatra gafangenen Rhopaloceren .” Enumerates 109 species 
in the subfamilies Papilionince, Pierince and Danaince only. 
VII. Hofrath Dr. L. Martin. “ Einige neue Tagschmetterlinge 
von Nordost-Sumatra.” Munich, 1895. Pts. I and II. Enumerates 9 
species. 
Besides these papers exclusively on Sumatra butterflies search has 
been made for all references to the butterflies of the island in Mr. W. 
F. Kirby’s “ A Synonymic Catalogue of Diurnal Lepidoptera ” up to 
1877, and “ The Record of the Zoological Literature ” up to 1893, the 
date of the last volume published ; Dr. A. R. Wallace’s papers on 
Eastern Butterflies; Mr. A. G. Butler’s paper on the Butterflies of 
Malacca; Dr. 0. Staudinger’s “ Exotische Schmetterlinge,” and the 
Butterflies of Palawan ; Herr Georg Semper’s “ Schmetterlinge der 
Pliilippinischen Inseln; ” and Mr. W. L. Distant’s “ Rhopalocera 
Malayana.” It is hoped that the list is fairly complete as far as 
present knowledge goes. The remarks on each species are headed by 
the names of the different writers who have recorded the species from 
Sumatra. All those species that have not been obtained by ourselves 
have an asterisk (*) prefixed to the name. Dr. Martin is of opinion 
that this list cannot be greatly extended, and that it is nearly complete. 
I do not agree with him; up to the last month of his stay in the island, 
species new to the list continued to be obtained ; besides which, con¬ 
sidering the vast extent of the island, that it is largely covered with 
almost impenetrable virgin forest, that a considerable portion of the 
country has never been explored, that it contains a continuous chain of 
high volcanic mountains running throughout its entire length which is 
almost unknown, and has been crossed from north to south in but few 
places, and finally that Dr. Martin’s collectors visited a few favoured 
spots only, at most 50 miles apart, I think it almost certain that this list 
will some day be increased by an additional 100 species at least. At the 
J. ii. 46 
