著者

KASUYA Eiiti

出版者

日本昆虫学会

雑誌

昆蟲 (ISSN:09155805)

巻号頁・発行日

vol.49, no.4, pp.607-614, 1981-12-25

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Males of a Japanese paper wasp, Polistes jadwigae DALLA TORRE, defend mating territories. Males waited for females at cracks opened on walls or corners of eaves and some of these places were used by females as hibernacula. These males bent their abdomens upwards on warm and sunny days from middle October to middle November. Abdomen-bending males were dispersed evenly. Waiting males chased off other males which approached the cracks or corners of eaves and copulated with females which came to these places. In cases where change in ownership of territories resulted, physical contacts between males were always observed. The duration of territorial possession by a male was, as a rule, within a single day. The radii of territories ranged from 20 to 50cm.