In June, 1963, the author took part in the Lepidopterological Research Expedition to Nepal Himalaya, and collected various lepidoptera in the neighbourhood of Kathmandu, capital of Nepal. A Lycaenid butterfly resulting from larvae collected there and then turned out to be a hitherto unknown species, which the author would like to describe here as a new species with coloured illustration of the imago and early stages. The author is greatly indebted to Mr. T. G. HOWARTH, B.E.M., F.R.E.S., F.Z.S., the Department of Entomology, British Museum (Nat. Hist.) for his extreme kindnesses and advice extended to the author in the preparation of this paper. Thanks are also due to Dr. TAKASHI SHIROZU, Professor at Kyushu University, Dr. YOSHIHIKO KUROSAWA of the National Science Museum, Tokyo, and to Mr. TOYOHEI SAIGUSA, Associate Professor at Kuyshu University. Last but not least, the author would like to express his thanks to Dr. HIROSHI HARA, Professor Emeritus of Tokyo University, who kindly identified the larval foodplant of the butterfly. The specific name is dedicated to Mr. MOTOHIRO HARADA, an L. S. J. member who has co-operated with the author during several expeditions to Nepal and elsewhere, and collected numerous valuable insects.
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