Subject: A spider species numbering in thousands on side of a water dam
Location: Whiteshell region, Manitoba, Canada
November 13, 2014 5:42 pm
Hi guys. Here’s the underside of a spider that has taken over one wall of the Seven Sisters Hydro Dam, in Manitoba. Its a feat of the mind walking past thousands of them and their webs when visiting the dam. 🙂
Signature: m. m.

Possibly Western Spotted Orbweaver
Possibly Western Spotted Orbweaver

Dear M.M.,
This is an Orbweaver in the family Araneidae, possibly a Western Spotted Orbweaver,
Neoscona oaxacensis, a highly variably colored species.  Orbweavers only survive for a single season, and they are most visible in the fall when they mature and grow in size.  They can be quite plentiful at times.

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