Life Cycle of an Oriental Blow Fly, Lucilia porphyrina (Walker) in Nagasaki, Western Japan

概要

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An investigation was made of the life history of Lucilia porphyrina (Walker) in Nagasaki prefecture, Western Japan from January, 1990 to December, 1992. A trap baited with horse meat was maintained at each of 3 altitudes, 5m, 500m and 1,000m, on Mt. Gokahara-dake. The number of flies captured was recorded once a month. The larvae and pupae which had bred from meat in the trap were also counted and transferred into a separate trap for emergence. The upper region of the mountain was considered as a primary habitat of this blow fly. At all altitudes, mature larvae were observed to enter dormancy/diapause in fall. Before winter adult flies at higher altitudes probably migrate to lowland for hibernation. After hibernation, males and females copulate, and females migrate again to highlands for oviposition during spring and early summer. During summer the highland seems to be the main habitat because all life stages were observed, while the lowland trap held only dormant/diapause larvae in summer. These latter individuals pupated and emerged in September.
長崎大学の論文