著者

村井 貞彰

出版者

山形大学

雑誌

山形大学紀要. 農学 = Bulletin of the Yamagata University. Agricultural science (ISSN:05134676)

巻号頁・発行日

vol.2, no.3, pp.179-187, 1957-02-25

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In .the previous report,the author recorded on the emergence of adults of the egg parasites,the seasonal prevalence,the rate of the appearance and the sex ratio. In that paper, the author considered that, both species seem to indicate the possibility of the rare parthenogenesis because of the fact that the females have a great number of them,and the percentage of the parasitism may be also increased by that. In the present paper, the results of the ecological studies of adults of the egg parasites are shown. A special study was made on the activity of copulation,oviposition and the percentage of the parasitism.