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spider - Allocosa funerea

spider - Allocosa funerea
Groton, Middlesex County, Massachusetts, USA
February 20, 2010
Size: 3mm
Found on the snow.

Images of this individual: tag all
spider - Allocosa funerea spider - Allocosa funerea spider - Allocosa funerea


Moved from Allocosa.
Thanks John. Hopefully I'm successful at maturing this spider, then I'll get more pictures, and a positive ID from the specimen.

Hi Tom
I think this may be Allocosa funerea. A. chamberlini seems to be confined to the west according to Dondale and Redner, 1983. They give the range as "Montana and Nebraska, south to Arizona and New Mexico".

Moved from Spiders.
Thanks John & Jane, and Mandy! Allocosa is a new genus for me, and it looks like this one probably isn't mature yet. So I'll see if I can keep it for a while until it matures.

Nice pictures
Hi, Tom,

A crisp, close dorsal picture of the carapace might help, so that the surface texture can be seen. According to Dondale and Redner (1990), A. funerea has "minute punctations" on the carapace (I think that means tiny dimples or indentations), whereas A. chamberlini does not. Or, if you can't get a picture maybe you can get a look with a magnifying glass? I can't tell from your closeup of the eye region whether this spider has them or not.

Also, A. chamberlini has dark rings on the femur of legs I and II, while in A. funerea those femura are without the rings and darker. This being a juvenile, though, I'm not sure how reliable those features would be at this stage.

Close up added
If I understand it right, this looks like it might be A. chamberlini.

I'm leaning that way, too.

Maybe an Allocosa wolf spider sp.

These dark ones often get ID'd as Allocosa, but better wait to see what Mandy says. She sometimes surprises us just when we think we're getting someplace with these guys!

Looks like great minds think alike. :)

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