in spring, and in early summer
Argyrodes kumadai (Theridiidae) [Japanese name : chiri isoro-gumo]
The spider acts like a thief. A.kumadai doesn't weave a web
itself; it relies on the other spiders' webs, and steals prey from
the host spider. And sometimes, it eats the host spider.
The length is 7-8 mm.
It is found on four main islands in Japan - namely, Honshu,
Shikoku, Kyushu, and Okinawa.
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