ウラナミシジミに関する研究 : II. 房総半島における周年経過と移動を中心にして

概要

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In 1954〜1956 the authors practised ecological surveys of the Long-tailed blue, Lampides boeticus L., in the B0so Peninsula of Chiba Prefecture, as the supplemental one to the study published in the previous paper (1954). In this paper they chiefly investigated the annual life cycle of the species and the migration of its adults. The results obtained are summarized as follows : 1. In the frostless region of the peninsula, hibernation of the species was recognized chiefly at stages of larvae and adults in the early seeded fields of broad beans, as well as in the fields of early harvest culture used by vernalized seeds. 2. As one of the most important factors controling the annual prevalence of occurrence of the species, the seasonal arrangement of its host plants (Fig. 2) is pointed out. The typical occurrence curve of adults in every district, classified by three kinds of broad bean culture, is considered as shown in Fig. 4 (A : early harvest culture used by vernalized seeds, B : early seeded culture, C : standard culture). 3. As for Iwase's theory with reference to the migration of adults from the hibernaton region to the northern parts in spring or summer, the authors support the theory from the four reasons. 4. It has been recognized that the flowering season of broad beans and damages in autumn and winter given by larvae have a close correlation.
日本応用動物昆虫学会の論文
1957-06-30