Some Observations on the Reproduction of Agelenid Spiders
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- ISHINODA Tatuo
- 宮崎県立高鍋高等学校
Bibliographic Information
- Other Title
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- クサグモ属3種の生殖について
Abstract
In this paper are reported the results of the Author's observations on the reproduction of Japansee Agelenid Spiders collected every month in Miyazaki Prefecture.<br> 1. All of the three species of this genus were observed on their life cycle through a year. (Tabl 1.)<br> 2. Sex ratio of Agelenid spiders has become clear by counting both adult sexes during the mating period. (Table 2.)<br> 3. The sex ratio is different not only with species but also with the individuals of the same species.<br> 4. After copulation, the appetite of the female spiders sharply increases, and they eat the male spiders (fig. 1.) and the other spiders as well.(Table 3)<br> 5. The shape of the egg-cocoon varies with species. However all of the cocoons are made of double silk sheets. The eggs are neatly piled inside the inner silk. A female spider usually produces only an egg-cocoon during her life span with some exceptions in which two or three are porduced.
Journal
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- Acta Arachnologica
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Acta Arachnologica 16 (2), 21-24, 1959
Arachnological Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680062050048
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- NII Article ID
- 130003560140
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- ISSN
- 18807852
- 00015202
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed