Can you identify this spider?

[stevem]

Its body is 12-15mm long (not counting legs) and the mass on its back is approximately 10mm in length. I found it in New Hampshire, USA.

Many, many thanks.

Steve

[stevem]

Araneus trifolium perhaps?

[brunoncyryl]

hello friend,

I am unable to identify it.It seems that that spider is very danger.I was surprise to see the picture of such big and dangerous spider

[LittleBeaver]

Have you compared it to a Marbled Orb Weaver? They are often variable in size and coloration.

[stevem]

Have you compared it to a Marbled Orb Weaver? They are often variable in size and coloration.

Thanks for the reply. It's similar to the Marbled. The Shamrock Orb Weaver, linked above, is almost identical, excepting for color and some marbling as you pointed out. It's harmless, thankfully.

[teabags1]

I am unable to identify this spider, but I have seen a couple of boards/post concerning the same spider.

Good Luck

[stevem]

Thank you, everyone, for your help!

[bregan1]

I've just seen this spider in my backyard in Concord NH. While walking the dog after dark, my headlamp lit this creature up. I've never seen such a large and dangerous looking spider in nh before and am wondering, what the heck is up with this thing???!!! Intrigued, I blew smoke in its web and the spider SHOOK the web up and down about an inch or two! up and down, up an down. I've never seen this spider in NH before!

[stevem]

OP here. Mine took up residence for only a season, and I haven't seen another since. I was initially concerned, because of its size, it might have been a pregnant mother, but my fears were unfounded. It was just a common spider.