Currently viewing the category: "Sac Spiders"
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Subject: Please ID spider
Location: Plattsburgh, NY
April 24, 2016 11:31 am
Trying to ID this critter.
Signature: Luke T. Bush

Sac Spider

Sac Spider

Dear Luke
Based on this and other BugGuide images, we believe this is a Sac Spider in the genus
Cheiracanthium.  According to BugGuide:  “Some species are thought to be slightly dangerous. However, this may not be true.”

What's That Bug? does not endorse extermination

Spider
Location: SE lower Michigan
December 27, 2010 2:20 pm
Can you help me identify this spider? We have spotted them a few in our home.
Signature: H. Smith

Black Footed Spider

Dear H. Smith,
Your spider is a Black Footed Spider or Yellow Sac Spider,
Cheiracanthium mildei, a species that was introduced from Europe.  It was once believed to be a species whose bite could cause necropsy around the bite, but that speculation is no longer believed.  The revision can be read about on the American Journal of Tropical Medicine and Hygiene website.

Thank you so much for taking a look at it.
We really do appreciate this awesome service to those of us out here that have no clue as to how to identify these things.

What's That Bug? does not endorse extermination

What kind of spider is this?
December 17, 2009
I keep finding these little spiders in my house, specifically in my bathroom. They seem to like to be on the ceiling above the shower and I always freak out when I see one while I’m in there because I don’t know what kind of spider it is and whether or not they are of any danger to me. They are usually about the size of a nickel and very pale in color. Can you tell me what kind of spider this is and a little bit about it please?
Jessica
Providence RI

Yellow Sac Spider

Yellow Sac Spider

Dear Jessica,
This species that has been introduced from the Mediterranean, Cheiracanthium mildei, is known by several common names, including Yellow Sac Spider, Black Footed Spider, and Cream House Spider.  The spider will bite, most often when it is trapped in clothing.  It was once believed that the bite of the Yellow Sac Spider was associated with blisters and lesions, but this has not proven to be the case, and the species should be removed from the medical concern list according to BugGuide.  You may read more on the ASTMH website of the American Journal of Tropical Medicine and Hygiene.

What's That Bug? does not endorse extermination