Transition of butterfly community by human actions in the grassland situated at the foot of Mt. Fuji, central Japan, was surveyed by route census method. The following five stations were selected. A: natural grassland; B: villa place; C: vegetable farm; D: cultivated meadow; E: golf course. In the St. A, both the numbers of species and of individuals were abundant. In the Sts. B, C and D the number of species decreased according to the increase of human actions, even if the number of individuals unchanged. When human actions increased to the maximum, both the numbers of species and of individuals in the butterfly community, reduced to the poorest level (St. E).

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In the present paper, I describe two new species belonging to the genera Psorosa and Metriostola, and record one species of the genus Acrobasis from Japan for the first time, with illustration of moths and genitalia. In writing this paper, I wish to express my cordial thanks to Dr. H. INOUE, Otsuma Women's University for his loan and gift of valuable specimens and his offering me a photograph of the holotype of Numonia cymindella RAGONOT taken by him at the Museum Naturkunde der Humboldt-Universitat, Berlin. My thanks are also due to my friends Messrs. N. HIRANO, A. TOMISAWA and Dr. R. SATO for their kind gift of valuable specimens.

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The genus Dooabia WARREN, 1894, is a rather small group, containing five species and three subspecies from the Indo-Malayan Region. Recently I had an opportunity to examine geometrid moths captured by Dr. M. OWADA, the National Science Museum, Tokyo, during a zoological expedition to the Philippines in 1985, and found a specimen of this genus. In addition to this, I was able to examine some specimens of another species from Sulawesi by the courtesy of Dr. H. INOUE, Otsuma Woman's University, and Mr. E. TSUKADA, Tokyo. In this paper I am going to describe these two species as new. Before going further I wish to express my hearty thanks to Dr. M. OWADA, the National Science Museum (Nat. Hist.), Tokyo, for his kind permission to examine invaluable specimens from the Philippines and reading through the manuscript. My gratitude is also due to Dr. H. INOUE, Otsuma Woman's University, Iruma, and Mr. E. TSUKADA, Tokyo, for their loan or gift of specimens.

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[in Japanese]

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Interspecific hybrids between Mycalesis gotama fulginia FRUHSTORFER and M. madjicosa BUTLER were obtained by means of the cage pairing. When the females of Mycalesis gotama fulginia were crossed by the males of M. madjicosa amamiana FUJIOKA, the ratio of emergence was relatively high, 44.0-57.6 %. Emerged adults of the hybrids, however, were exclusively males. On the contrary, in the reversed crossing, in one strain, weakly deformed hybrid males emerged in low ratio of 8.1 %, but in other strains, all hybrids died until pupation. When the females of M. madjicosa amamiana were backcrossed by the male of hybrids between M. g. f female and M. m. a. male, seven males and one female emerged in low ratio, less than 10.0 %. All of these adults were also weakly deformed. This result suggests that the males of interspecific hybrids lack something of reproductive function. These results show that there is a reproductive isolation between the two species, Mycalesis gotama fulginia FRUHSTORFER and M. madjicosa BUTLER, as well as the results of my past experiments (TAKAHASHI, 1976, 1978, 1979, 1981 etc.).

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Spermatocyte chromosomes of butterflies caught in late July, 1983, in Jammu and Kashmir, India, were examined with particular concern as to their number and morphology. The haploid chromosome numbers established are listed below. Pieridae Colias fieldii fieldii, n,31(I): Fig.1. Pontia callidice karola, n, 24, 25, 26 (I): Figs.2 and 3. Artogeia canidia indica, n, 25 (I): Fig.4. Pieris brassicae nepalensis, n, 15 (I, II): Fig.5. Nymphalidae Boloria pales korla, n, 31 (I): Fig.6. Although the European taxa of Boloria pales studied are uniformly characterized by an n, 30-karyotype (♂) (LESSE, 1953, 1960, 1961), the haploid complement of Boloria pales korla comprizes, as mentioned above, thirty-one elements of dot-appearance and a single element of the remarkable size is certainly distinguishable at MI (Fig.6).

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A new species of Lygephila is described from Japan. It has been hitherto confused with L. recta. This new species can be easily distinguished by male genitalia.

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