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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Wolf Spiders (Lycosidae) » Trebacosa » Trebacosa marxi
Photo#365865
Trebacosa sp.? - Trebacosa marxi
Copyright © 2010 tom murray

Trebacosa sp.? - Trebacosa marxi
Antrim, Hillsboro County, New Hampshire, USA
January 20, 2010
Size: 4mm
Found on the snow in a white cedar swamp.

Images of this individual: tag all
Trebacosa sp.? - Trebacosa marxi Trebacosa sp.? - Trebacosa marxi Trebacosa sp.? - Trebacosa marxi
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Contributed by tom murray on 20 January, 2010 - 8:49pm
Last updated 4 March, 2014 - 2:35am

Moved
Moved from Trebacosa. I just stumbled on these and moved them to species level since there's only one species in this genus in North America.
… Mandy Howe, 4 March, 2014 - 2:35am login or register to post comments

Moved
Moved from Wolf Spiders.
… Laura P., 9 February, 2014 - 11:44am login or register to post comments

Could be ...
Once again, Tom, great pictures!

I'd say that Trebacosa marxi is a good possibility, based on the resemblance of this spider to pics of adults already in BG. Trebacosa will have more than 3 pairs of macrosetae on the undersides of tibiae I and II (according to SONA), but I can't see that part of the leg in your pictures.
… John Sloan, 20 January, 2010 - 10:01pm login or register to post comments

 
..
If that is the case (more than 3 pairs of macrosetae on the undersides of tibiae I and II), then this is not Trebacosa. I see only two ventral pairs on tibia I & II; immature, discarding specimen.

-K
… Kevin Pfeiffer, 26 July, 2010 - 6:48am login or register to post comments

 
tibiae picture added
John, I added a picture of the left front leg of the spider. Maybe it will help.
… tom murray, 20 January, 2010 - 10:45pm login or register to post comments

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