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Photo#168779
Coras montanus Species - Coras montanus - female

Coras montanus Species - Coras montanus - Female
48.164049N 53.964779W, Clarenville, Trinity Bay, Northeast Avalon, Newfoundland/Labrador, Canada
February 8, 2008
Size: 15mm body length
This spider was found indoors, crawling across the hardwood floor on the ground level of a house that was being thoroughly cleaned in preparation for being sold. I suspect the cleaning must have disturbed it from some inside hiding place. It's winter in Newfoundland with lots of snow on the ground and cold temperatures outside. If a spider like this over-winters inside a house, is it normally dormant or does it move around actively? Two of the photos were taken with the spider resting on a pink counter top, so the colour may look a bit odd. This photo was taken while it was on a white and black floor tile.

Images of this individual: tag all
Coras montanus Species - Coras montanus - female Coras montanus Species - Coras montanus - female Coras montanus Species - Coras montanus - female

Moved
Moved from Coras.

Cranking the heat often 'awakens' hibernating insects and spiders in the home. I would see more ladybugs in the house during CT winters than anything.

ID is Coras montanus Species
Here's the email report that I received from Dr. Roger Pickavance, recently retired from the Biology Faculty at Memorial University, after he did a hands-on inspection of the preserved specimen:

"It's an adult female Coras montanus - as you suspected family Amaurobiidae. All amaurobiids have a cribellum of some sort, a small toothed plate (for combing silk) just anterior to the spinnerets on the ventral surface but often very difficult to see even if you know it's there. This is a frequently encountered species in NL, but more usually encountered in woods and clearings."

I see that the Genus Coras exists on BugGuide but there are no species pages for this Genus. I'm moving the images to the Genus page for now and maybe one of the editors will create a species page for Coras montanus.

Amaurobid
The general look of it fits Amaurobiidae, and the setting is suggestive...most of the A's I know are sendentary, don't like to leave their webbing, thus the importance of the cleaning...was the house unoccupied for a while? If it was preserved, one could see if it was cribellate.

 
Cribellate?
The house has been 'semi-occupied' for the past month as the furniture is slowly being moved out.

Can you elaborate on your cribellate comment? I have preserved the specimen for examination by a local spider expert. When I give him the spider, do I need to ask for something special with regard to your cribellate suggestion? I'm afraid I don't know much about spiders even though I like photographing them, so any information you supply will be of interest.

No.
Great images! Eye arrangement is all wrong for a wolf spider. This is more likely to be a hacklemesh weaver in the family Amaurobiidae, but let the other spider experts weigh in. Classification changes have resulted in families being re-arranged....

 
Thanks
Thank you Eric. I saved this individual as a speciman and I'm planning to take it to the local university spider expert for an ID. I'm still interested in what the BugGuide folks think but I'll also post the results of the hands-on examination when I get the ID.

 
your good work
good luck, I would be delighted to know how this spider shakes out...I am under the impression that excellent photos coupled with excellent identifications are an important newish world that will include many more lay people than ever in crucial understandings, and bugguide is to be admired for what we all might contribute overall...
Eric

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