in spring, and in early summer
Cyclosa octotuberculata (Araneidae) [Japanese name : gomi-gumo]
The web is attached to waste products e.g. scraps, excuvia, etc.
The spider is imitating its waste products. So you can hardly find the spider.
The length is 12-14 mm.
It is found on four main islands in Japan - namely, Honshu, Shikoku,
Kyushu, and Okinawa.
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