What's That Bug? does not endorse extermination

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.

What's That Bug? does not endorse extermination
Location: Whiteshell Region, Manitoba, Canada

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