著者

Suzuki Yuya

出版者

Arachnological Society of Japan

雑誌

Acta Arachnologica (ISSN:00015202)

巻号頁・発行日

vol.71, no.1, pp.59-61, 2022-06-30 (Released:2022-07-02)

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This paper describes field-based observations of male-male agonistic behavior in a longlegged sac spider Cheiracanthium eutittha (Araneae: Cheiracanthidae). Males of the species exhibited a characteristic agonistic behavior, where two males hung from leaves with a dragline, with all of their long legs entangled with each other and pushed each other’s body aggressively. To the best of my knowledge, this is the first video-based report of male-male agonistic behavior associated with usage of elongated legs in this spider family.