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Show 556 MR. H. H. DRUCE ON BORNEAN LYOENID.E. [June 18, 4. A Monograph of the Bornean Lyceenidee. By HAMILTON H. DRUCE, F.Z.S., F.E.S. [Eeceived June 14, 1895.] (Plates XXXI.-XXXIV.) Since my father, Mr. Herbert Druce, published, in the Proceedings of this Society for 1873, a list of Bornean butterflies obtained by Mr. (now Sir Hugh) L o w in the neighbourhood of Labuan, very little has been written on the subject at all and scarcely any additions have been made to our knowledge of the Lyceenidee. Messrs. Distant and Pryer have described a few, obtained at Sanda-kan by Mr. Pryer, in the ' Annals and Magazine of Natural History' (ser. 5) vol. xix. 1887, as also has Mr. Grose Smith in vol. iii. (ser. 6), 1889, of the same periodical; whilst Mr. de Niceville has mentioned some species as occurring in Borneo in his work on the Butterflies of India, Burmah, and Ceylon, and has described one or two in the Journal of the Bombay Natural History Society, 1891. In the Journal of the Asiatic Society of Bengal, vol. Ix. 1891 Mr. W . Doherty has recorded a few species, and described a new one of the genus Nacaduba, and Dr. Butler, in an account of a collection of Lepidoptera obtained by Mr. W . B. Pryer at Sandakan published in the Proceedings of this Society (P. Z. S. 1892, p. 121), has described a single species of the genus Arhopala. These papers, with the addition of one or two solitary descriptions, are all that I can discover as referring to the Lyceenidee of tbe region dealt with here. The large amount of material which I have worked upon for this paper is partly contained in Messrs. Godman and Salvin's collection, and m y thanks are due to those gentlemen for kindly allowing me free use of their fine series, and also to Dr. Staudinger, to w h o m I am also much indebted for the opportunity of examining the whole of tbe specimens collected on Kina Balu by Waterstradt and at Labuan by Wahnes. This collection from Kina Balu, containing as it does examples of a large number of new species, I have found of the greatest importance; and to those interested in the geographical and other features of this great mountain I would recommend a perusal of Mr. J. Whitehead's book, 'The Exploration of Kina Balu, N . Borneo.' Besides these collections, we have in our own possession a considerable number of specimens from Kina Balu, Elopura, Sarawak, and Sandakan. Dr. Staudinger informs m e that the species labelled " Labuan," captured by Waterstradt and Wahnes, are not from the small island on the N . W . coast but from the mainland opposite. Mr. Herbert Druce recorded 71 species of the family in bis list, and this number I am now able to increase to about 220, inclusive of about a dozen species of the genus Arhopala which are either undetermined or unnamed. Mr. de Niceville enumerates 402 species in ' The Butterflies of India etc,,' so that w e have already |