Eurema brigitta CRAMER, a tropical Pierid butterfly, widely distributed in the African and Indo-australian Region, has not been found in Japan and its northern-most locality in eastern Asia was Formosa, so far as known up to present. In September and October, 1955, nine specimens (7♂♂2♀♀) in total of this species were collectd at Karatsu, North Kyushu, Japan, by Messrs. IZUMI MATSUSHITA and TOYOHEI SAIGUSA, and, moreover, one living pupa o>f the species was found on Cassia mimosoides LINNE, var. nomame MAKING (Papilionaceae) in the same habitat by Mr. T. SAIGUSA. Thus there is no doubt that the species was bred on Cassia in that locality at least in September and October, 1955. I compared these nine specimens (Figs. 1-9) with those of the Formosan subspecies, E. brigitta formosana MATSUMURA (Figs. 10-18), and found that they differ from each other in some respects. In formosana the colour of the fringe of both the wings is strongly pink-tinged in the cold-season form, seen frcm below, though not pink in the warm-season form. The nine specimens before me frcm Karatsu, Japan, are apparently representing the cold-season form judging from the degree of development of the black bordering on the upperside of wings and the collecting dates, but they are furnished with a fringe not pink. The black bordering of hindwings is strongly marked in the preapical part and suddenly narrowed towards the anal region from the middle of the space 5 and the brownish fasciae on the underside of wings are well developed in the cold-season form of the Formosan subspecies, while in the specimens from Japan, the black bordering is narrower and gradually tapering towards the anal region and the brownish fasciae are. less developed. Judging from the above mentioned facts, the specimens captured at Karatsu cannot be regarded as belonging to the Formosan subspecies, and must have been accidentally introduced (possibly by ship) into Japan from some locality in tropical Asia other than Formosa, unless it is proved to be the natives of Japan. It requires further investigations in order to elucidate this problem.

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In October 1954 we had an opportunity to take a short trip to Satamisaki, the southernmost part of Kyusyu, and to take photographs of some life-forms of Hebomoia glaucipbe, the largest Pierid of Japan. The butterflies are tropical or subtropical and are distributed widely in the Oriental region. They are divided into several subspecies according to localities. Satamisaki is the northernmost district in which they live and they are represented there by subspecies liukiuensis FRUHSTORFER. The larvae live upon Crataeva religiosa and they repeat five life-cycles during the period from April to November in this district.

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