Role of Insect Sex Pheromones in Mating Behavior IV. Repeated Turnings of Male Fall Webworm, Hyphantria cunea DRURY (Lepidoptera : Arctiidae)

概要

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Continuously repeated turnings of the Hyphantria cunea DRURY male were observed in its flying into an active space estimated by diffusion equation until arrival at its destination or the abandonment of its zigzagging. A turning was defined as the reversing of flight track direction or circular flight. Frequency of turnings was counted by observers standing near the pheromone source. The repeated turnings are presumed to be solved as a matter of probability since turning frequency, turning ratio, hovering ratio and arrival ratio seem to have probability characteristics.
1983-05-25