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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Cheiracanthiidae » Long-legged Sac Spiders (Cheiracanthium)
Photo#423463
Long-legged Sac Spider - Cheiracanthium - male
Copyright © 2010 Mark Swanson

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
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Contributed by Mark Swanson on 8 July, 2010 - 2:57pm
Last updated 7 June, 2022 - 2:22pm

Moved
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.
… chuuuuung, 7 June, 2022 - 12:29pm login or register to post comments

Moved
Moved from Longlegged Sac Spiders.
… Mark Swanson, 12 July, 2010 - 3:39pm login or register to post comments

Yellow Sac Spider
Yes, I believe it is called that in some areas. Do you have a dorsal view of this spider?
… Lynette Elliott, 8 July, 2010 - 3:04pm login or register to post comments

 
I added two more views.
Hope they help you.
… Mark Swanson, 8 July, 2010 - 3:27pm login or register to post comments

 
Perfect
Thanks! Also, it's a juvenile male.
… Lynette Elliott, 8 July, 2010 - 3:28pm login or register to post comments

 
What do these views confirm?
(with regard to species)
… Mark Swanson, 8 July, 2010 - 3:30pm login or register to post comments

 
:)
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.
… Lynette Elliott, 8 July, 2010 - 3:39pm login or register to post comments

 
Location
It might help to know where you found this spider, in a building, in a plant, etc.
… Lynette Elliott, 8 July, 2010 - 3:55pm login or register to post comments

 
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.
… Mark Swanson, 8 July, 2010 - 4:16pm login or register to post comments

 
Inside
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.
… Lynette Elliott, 8 July, 2010 - 4:31pm login or register to post comments

..
duplicate comment.
… Lynette Elliott, 8 July, 2010 - 3:04pm login or register to post comments

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