[in Japanese]

View full abstract

A new subspecies of Eurema sarilata (SEMPER) is described from Sibuyan Is. under the name of Eurema sarilata sibuyanensis. It is distinguished from all the described subspecies by an extremely narrow black distal border on the upperside and a much reduced apical patch on the forewing underside.

View full abstract

Observation on the male flight activity of five Zephyrus hairstreaks, Artopoetes pryeri(MURRAY), Antigius attilia (BREMER), Favonius orientalis (MURRAY), Chrysozephyrus smaragdinus (BREMER) and Chrysozephyrus brillantinus (STAUDINGER) was performed at Koganezawa valley, Ueda City, Nagano Pref. toward the end of June, 1975. The results are summarized as follows: 1. Artopoetes pryeri was most active in light intensity of 8,000-25,000 lux. It was assumed that the light intensity more than 50,000 lux acted as an inhibitor of the activity to this species. 2. Antigius attilia was most active in light intensity of 5,000-20,000 lux. It was assumed that the light intensity more than 50,000 lux acted as an inhibitor of the activity to this species. 3. Favonius orientalis was most active in light intensity of 15,000-35,000 lux. It was assumed that the light intensity more than 80,000 lux acted as an inhibitor of the activity to this species. 4. Chrysozephyrus brillantinus was most active in light intensity of 15,000-35,000 lux. It was assumed that the light intensity more than 50,000 lux acted as an inhibitor of the activity to this species. 5. Chrysozephyrus smaragdinus was most active in light intensity of 15,000-25,000 lux. It was assumed that the light intensity more than 50,000 lux acted as an inhibitor of the activity to this species. 6. The activity of these species were stimulated temporarily when the light intensity dropped more than 50,000 lux rapidly.

View full abstract

In the course of my taxonomic study on the genus Neptis, I found a new species belonging to the hylas-group from West Malaysia in Mr. NAKAYAMA'S collection. In this paper, I describe this new taxon.

View full abstract

In December 1976 to January 1977, Mr. Akira YAMAMOTO collected several specimens of an interesting species of the genus Ypthima HUBNER at Mt. Apo, Mindanao, the Philippines. The same species was also collected by Mr. Yasusuke NISHIYAMA at the same locality in 1977 to 1978 and by myself in 1978. I have studied this species not only on its external morphological characters but on its habits in the field in comparison with the known species of Ypthima. Recently I have come to the conclusion that this is an undescribed species of the genus. In this paper I describe the new species and give biological notes on its adult habits. The present new species apparently belongs to the pandocus-group of this genus (SHIROZU & SHIMA, 1979) and seems to be most closely allied to Y. sempera FELDER, 1863, occurring in the Philippines. The discovery of a new species of the pandocusgroup from the Philippines is very interesting in considering the phylogenetic relationships and zoogeographical distribution of the group.

View full abstract

A new pyralid moth, Cryptoblabes aphidivora, is described and illustrated from Japan, together with descriptions of the immature stages and notes on its feeding habits on aphids.

View full abstract

The genus Thecobathra comprises 15 species and is known from Nepal, Sikkim, Bhutan, Assam, Central and South China, Formosa and Japan (MORIUTI, 1971; LIU, 1980). In the present paper, a description is given of a new species of the genus from Thailand and T. lambda (MORIUTI) is recorded from Thailand for the first time. This is the first record of the genus not only from Thailand but from Southeast Asia.

View full abstract

The genus Callithrinca includes only two species, belonging to the tropical region, viz., C. evocatella (WALKER) from Borneo and C. niphopyrrha MEYRICK from Fiji. In the present paper, a new species is added to the genus. It is described from a male specimen taken by me during the expedition to collect lepidopterous insects in Thailand in 1981. I take this opportunity of redescribing the genus Callithrinca. I wish to express my thanks to Professor H. KUROKO, the leader of the expedition, for his active interest. I am also indebted to Dr T. WONGSIRI, Mr M. RUMAKOM and Dr A. LEWVANICH, of the Thai Department of Agriculture, for their generous help during my stay in Thailand.

View full abstract

The Phyllonorycter nipponicella complex, including P. nipponicella (ISSIKI), P. acutissimae (KUMATA) and P. similis sp. nov. (=Lithocolletis nipponicella: KUMATA, 1963 and 1966), is revised. The host association and distribution of the complex are discussed.

View full abstract

The male and female external genital structure of Aenetus virescens (DOUBLEDAY) are described and figured. The musculature of male external genitalia is also analyzed. On the male external genitalia, the following character-states are characteristic; 1) the absence of mesosome, 2) valva with an acutely pointed long process at the middle portion of its ventral margin. On the musculature of male external genitalia, the m.5 (vinculum-valva) is very broad and well developed. Some types of mesosome in the male genital structure of Hepialidae are shortly discussed.

View full abstract