1. Morphological characters of immature stages of Ypthima praenubilia kanonis MATSUMURA in nothern Taiwan were described with some ecological notes. 2. Egg: Pale green, nearly spherical in shape, rather swollen in lower hemisphere. 1.1 mm in diameter and 1.1 mm in height. 3. Larvae: Pale brown in ground colour, cylindrical in shape with a pair of tail projections; a pair of processes on head; final (7th) instar larva grown to 37 - 39 mm in length. Prominent characters of each instar larva are as follows: 1st instar: Thorax and abdomen greenish, with reddish brown longitudinal lines; head with rounded processes; apices of abdominal setae spherical. 2nd instar: Head with a pair of pointed dorsal processes; abdomen with pale yellow band in subdorsal area. 3rd instar: 4th abdominal segment with a dark brown patch on subdorsal area. 4th instar: 1st to 6th abdominal segments with subdorsal dark brown patches, prothorax and 8th abdominal segment each with conspicuous black band. 5th instar: Dark brown patches on 1st to 6th segments composed of a complicated dorsal pattern. 6th instar: Each abdominal segment bearing a longitudinal wave-shaped yellow-brown band on subdorsal area, the band including a dark patch. 7th (final) instar: A pair of dark brown patches on each abdominal segment connected to each other in several segments; dorsal area of 4th abdominal segment reddish brown; posterior part of abdomen greyish; thoracic legs and prolegs dark brown; in subvental area, a dark brown band with the same coloured line internally. 4. Pupa: Dark brown dorsally and pale brown ventrally; 4th abdominal segment with a dorsal bow-shaped ridge, and 5th - 9th abdominal segments with paler straight ridges. 20 mm in length. 5. This butterfly is univoltine and appears from June to July in the mountainous area of northern Taiwan, 500 - 1000 m in altitude. 6. Some eggs were found on the undersides of young leaves of Miscanthus sinensis ANDERS. subsp. formosanus HACK., which is probably the main food plant of this butterfly in northern Taiwan. 7. Adult sips tree juice, sometimes sucks water on the ground and visits flowers with lazy flight.

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The adult dispersal in the aphidphagous lycaenid, Taraka hamada was studied by using the marking method. The results demonstrated that the butterflies dispersed to search new habitats. The butterflies seemed to move along the forest edge, where the larval food, the aphid, Ceratovacuna japonica, usually occurred. Eight females and two males were observed to immigrate into new places. The adult dispersal should be an important strategy for T. hamada to maintain the population, because this species depends on the unstable food resource.

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Sarcinodes restitutaria was described by WALKER in 1862 under the genus Auxima from Darjeeling, and has been divided into four subspecies: a nominal subspecies restitutaria (WALKER), perakaria SWINHOE from Malaya, sumatraria (WALKER) from Sumatra and yaeyamana INOUE from Japan. Through the courtesy of Dr. H. INOUE, Otsuma Women's University, Iruma and Dr. M. OWADA, the National Science Museum (Nat. Hist.), Tokyo, I could examine a number of specimens of Sarcinodes from Southeast Asia and Japan. As the result of my examination, it was proved that perakaria, sumatraria and yaeyamana are three distinct species and not conspecif ic with restitutaria. Besides these species mentioned above, in this paper three species related to restitutaria, one from Thailand and two from the Philippines, will be described as new. All the type specimens designated here are presereved in the National Science Museum (Nat. Hist.), Tokyo, unless otherwise stated.

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Diploid germ-line chromosomes were observed in males of the satyrid, Erebia niphonica, from Mitsumata, Kamishihoro-cho, Hokkaido. The chromosome number of 2n, 38 was determined, based on counts in six spermatogonia from three males. One of the diploid complements examined was shown in the figure.

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Through the courtesy of Mr. M. OKADA, we had an opportunity to see a photograph in colours of a sesiid moth taken by him in the island of Amami-Ohshima on the 10th of June, 1980. The transparency gave us surprise, because the species on the picture, belonging to the genus Melittia, has not been known to occur in Japan. An illustration from the photograph by him is given in Fig. 1. We made lepidopterous collection trips to the island in 1984, 1985, 1986 and 1987, and it was very fortunate for us that we were able to collect one male and four females of this species. This large blackish male specimen well agrees with the male holotype of Melittia formosana MATSUMURA from Taiwan in the superficial appearance as well as in the genitalia. M. formosana MATSUMURA is redescribed from specimens taken in the island of Amami-Ohshima. We wish to express our gratitude to Mr. M. OKADA, Nagoya Kontyu-kan, Nagoya, for his valuable information on this interesting species, to Dr. S. MORIUTI, University of Osaka Prefecture, for his critical advice and for his kindness in correcting the manuscript, and to Dr. T. KUMATA, Hokkaido University, for the loan of type specimen of M. formosana MATSUMURA preserved in the collection of his institute.

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A new lycaenid species Callictita upola is described from Irian Jaya, Indonesia. The species is apparently most closely related to C. albiplaga.

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