On February 16, 1973, the author had a chance to examine some specimens of Princeps demoleus collected by Mrs. Faustino at Mansalay, a small village in southeast Mindoro Island, the Philippines. According to Hiura (1973) this species was also collected by Mr. Honda in July, 1971, in Mindoro. The author has also recorded this species in the present paper from Zamboanga City, Mindanao Island. This butterfly was flying from flower to flower at Pasonanca Park of the city on February 13, 1972. Ae (1970) already reported the species from Mindanao Island, but he did not describe the detail of the collecting place in the island. Hiura (1973) recorded the butterfly from Bugusuk and Balabac Islands based on the collection of Mr. Honda inJuly, 1971. Thus, Princeps demolens has been recorded in Luzon, Mindoro. Palawan, Bugusuk, Balabac, Leyte, Cebu, Negros and Mindanao Islands, but the present author has not seen any record of the butterfly from Masbate, Panay, Samar and Bohol Islands. He has shown a distirbution map of P. demoleus libanius Fruhstorfer in the Philippines in fig. I, except the records of Negros and Mindanao reported by Ae (1970), because his collecting places in these islands were not recorded. A distribution map of this butterfly in East Asia is shown in fig. 2, which is modified after Shirozu (1960). The author has an interest when Princeps demoleus will invade Borneo Island through the Philippine Archipelago. There are two possible courses for this butterfly to invade Borneo; one is the course of Zamboanga-Sulu-Borneo, and the other Palawan-Bugusuk-Balabac-Borneo.

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Towards the end of March in 1968 the author visited North Thailand to collect butterflies. It was in the midst of dry season. Most leaves turned yellow and trees shed their leaves as they do in autumn in his country, and so it was difficult to find a suitable site for collecting butterflies. The author could not gather many because of the short-term expedition there. In this report the author deals with Lycaenidae only. All of the specimens were captured by himself, hence the author left out the name of the collection in the following description. The places were as follows: Chom Thong, Mt. Huay Khao, Fang and near the border of Burma. Before going further, the author wishes to express his hearty thanks to Mr. T. G. Howarth, Mr. C. F. Huggins and the other staff of the British Museum (Natural History), Mr. Akito Kawazoe and Mr. Syoichi Iwanaga who gave kind advices and facilities for investigation.

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Recently I had an opportunity of studying the specimens of Pychromnestra isoniphas Meyrick and Macrophanta aulosenia Meyrick by the courtesy of Drs. Klaus Sattler and P. E. S. Whalley, to whem I am much indebted for allowing me to examine them in the collection of the British Museum (Natural History). The two species are the type-species of the genera and occur in India. Close examination of the specimens of the two revealed that the genus Psychromnestra Meyrick is closely related to Ypsolophus Fabricius and its allies, and that the genus Macrophanta Mayrick falls as a synonym of Swammerdamia Hubner.

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[in Japanese]

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20. Kiriakoff (1968) erroneously designated that Ceira horishana Matsumura is synonymous with Ceira virgata Wileman, but horishana Matsumura is only the male of Pydna magma Matsumura (the latter is not a member of the genus Periergos, though Kiriakoff (1968) placed it in that genus). Ceira virgata Wileman supersedes Pydna formosicola Strand and should be placed in the genus Achepidna Matsumura. Bireta formosicola Starnd sensu Kiriakoff (1962) is probably a synonym of Ceira? sordida Roepke from Java. Togarishachia argentopicta Matsumura, which was described from the only one female, is congeneric with Poncetia albistriga kanshireiensis Wileman. Therefore, the genus Poncetia Kiriakoff should be sunken as a synonym of Togarishachia Matsumura. In the light of the above-mentioned results, rearrangement of Formosan Ceira-group gives 10 species. Besides them, a new species Torigea formosana Nakamura is added, and two already described species., Mimopydna sikkima Moore and Besaia (Curuzza) frugalis Leech, are recorded from Formosa for the first time. Curuzza Kiriakoff seems to be a subgenus of Besaia Walker. 21. According to my investigation, the Formosan Fentonia contains four species, namely, baibarana Matsumura, crenulata Matsumura, parabolica Matsumura and macroparabolica new species. Of these species, baibarana was misidentified by me as crenulata in the previous paper of this series (Nakamura, 1965), and parabolica is a good species, though Kiriakoff (1968) considered that the species is a synonym of ocypete Bremer. A detailed account is given of the differentiation among ocvpete, baibarana and crenulata. 22. A Formosan species of the genus Damata has been recorded under the name of longipennis f. formosicola Matsumura (1931) and recently been treated by Kiriakoff (1968) as a subspecies of longipennis. However, based on the result of a detailed comparison between Formosan and Indian representatives, it is evident that formosicola is a distinct species. Damata formosicola Matsumura is redescribed in detail. 23. Disparia wilemani Matsumura is neither a synonym nor a subspecies of variegata Wileman (= sordida ab. formosana Wileman), and is congeneric with nigrofasciata Wileman; the latter species is not identical with seriatopunctata Matsumura, as treated by Kiriakoff (1968). The Japanese variegata japonensis Tams is more slightly related to nigrofasciata than to variegata variegata, but an aestival form of variegata japonensis, which abnormally appears in the summer in Japan, is closely allied to variegata variegata. A new species Pseudofentonia (Disparia) medioalbida Nakamura, which seems to resemble "Calyptronotum" singapura Gaede in the wing pattern but is closely related to Pseudofentonia (Disparia) nigrofasciata 'Wileman in the male genitalia, is described.

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