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Long-legged Sac Spider - Cheiracanthium - male

Long-legged Sac Spider - Cheiracanthium - Male
Cook County, Illinois, USA
November 28, 2005
Found indoors, roaming a kitchen counter. I'm calling it C. inclusum instead of C. mildei because of the coloring.

Images of this individual: tag all
Long-legged Sac Spider - Cheiracanthium - male Long-legged Sac Spider - Cheiracanthium - male Long-legged Sac Spider - Cheiracanthium - male

Moved from Cheiracanthium inclusum.

Palps are not fully formed, so they cannot be used for ID. C. mildei is more commonly found indoors, but that is not an absolute criterion, so this is best left at genus.


Yellow Sac Spider
Yes, I believe it is called that in some areas. Do you have a dorsal view of this spider?

I added two more views.
Hope they help you.

Thanks! Also, it's a juvenile male.

What do these views confirm?
(with regard to species)

Well to be honest I was using those views to make sure you have the genus correct. Males can easily (in my opinion) be confused with Clubiona sp. I do think you have the genus correct. There are only 2 species in our region and I'd have to do more research before I guessed which you have here. Mandy might know, though.

It might help to know where you found this spider, in a building, in a plant, etc.

Indoors, on a kitchen counter
The first two images were taken the same evening. I just realized the third photo (spider exploring an open soy milk carton) was taken several days later, so I can't be sure it's the same individual.

means that it is more likely Cheiracanthium mildei, though males do wander. Personally, I think the coloring matches inclusum better as mildei is supposed to be a bit greenish. I suppose they can be variable, though.

duplicate comment.

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