Currently viewing the category: "Ground Spiders and Ant Mimics"

What is this spider?
Location: 49242
April 16, 2011 11:00 pm
I recently found this spider sitting in our bathtub and have been unable to identify it. I’m not worried about, just curious what kind it is. If you could help me that would be most fantabulous.
Signature: M.B.

Eastern Parson Spider

Dear M.B.,
The markings on this Eastern Parson Spider,
Herpyllus ecclesiasticus, are quite distinctive.

Location: Rome, NY
February 8, 2011 2:20 am
Hi, this spider was in my bathroom on top of the heat duct then after I took the picture scampered down the duct very quickly. I reside in Central NY. The body was about an inch in length – it was a little large for my liking!
Any help identifying would be greatly appreciated.
Thank you.
Signature: Amy Wheeler

Eastern Parson Spider

Hi Amy,
We haven’t posted any recent images of the harmless Eastern Parson Spider,
Herpyllus ecclesiasticus, in quite some time.  Your letter and photo are welcomed additions to our archive.  There are may nice images of the Parson Spider on BugGuide.

Parson Spider
Location:  Atlanta, Ga. USA
September 8, 2010 10:55 pm
Thanks to your site, which led me to Bug Guide, I think I have identified our mystery spider. We found it indoors in a suburb near Atlanta, Ga. USA. I’m reasonably sure it is a Parson Spider, and since I see no pictures of Parson Spiders on your site I thought I’d offer mine. The poor thing is missing 2 legs (not our doing), but it’s easily identifiable nonetheless.
Love your site. Thanks!
(PS- I am resending this as it apparently did not go through earlier. I sure hope I’m not sending multiple copies, and if I did then I apologize!)
Signature:  Kit

Parson Spider

Hi Kit,
Thanks so much for sending and then resending this image of a Parson Spider,
Herpyllus ecclesiasticus.  We actually do have other images buried deep in our archive, but your letter has given us the opportunity to create a new category for the family Gnaphosidae, the Ground Spiders, and then move our other letters with photographs of Parson Spiders into that category.

Orange Tiger Striped Spider
June 23, 2010
This was the coolest looking spider I could hardly see. He was barely 1/4 of an inch long, and looked as though he was ready to pounce upon me. I looked at him, He looked back, so I got my camera, and found him once again on my porch.
He rared his abdomen up at an angle, then he started “twirling” it around right before he jumped.. He could jump about 8 inches in one leap, and was very very fast when he ran. I did not notice his tiger stripes until I looked at the photographs. I tried to get a nice macro shot, but he just didn’t want to wait till I adjusted my shutter speed…
Each time I would go in for a shot, he would wiggle his butt, then jump off to the left or right. He tried to go under an object, I carefully moves it off from him, and so the showdown began.
Date of the picture is 6/23/10
Lexington, NC

Antmimic Spider

Hi Rick,
Using BugGuide, we quickly identified your spider as Castianeira amoena, a species in the family Corinnidae, commonly called Antmimic Spiders or Ground Sac Spiders.

Spider in Utah
July 29, 2009
I came across this spider while walking in a desert scrub area near a creek. It was about the size of a quarter or maybe a little smaller if I remember correctly. Any idea what it might be?
Curious about Critters
Cedar City, Utah

Red Spotted Ant Mimic

Red Spotted Ant Mimic

Hi Curious,
Using BugGuide, we believe we have identified your spider as a Red Spotted Ant Mimic, Castianeira descripta.  According to BugGuide:  “Although like most spiders this species is equipped with vemon to subdue its prey, it is not considered harmful to humans.”

Hi Daniel,
I sent the attached photographs to you some time ago and I never heard back so I assume they were lost. I’m still curious about the spiderlings, however, and I wonder if you have any thoughts. The pictures were taken in late May on our deck in southwest Oregon in a madrone/oak forest. Based on Bug Guide pictures, the spiderlings might be an Argiope or an Araneus species, but the adult looks like a jumping spider. When the adult appeared, the spiderlings ignored it, although they would respond by moving rapidly if I so much as blew lightly on them. I suspect that the adult is too small physically to be the mother and produce that number of eggs but, if I’m right, then what is it, and why weren’t the spiderlings frightened by it? It just doesn’t make any sense to me. I enjoyed the back and forth between you and Johanna and her nails. Your website is interesting, informative and fun, all at the same time, and I read it regularly. Thanks for your help.

Hi Bob,
You are correct that your spiderlings are Orb Weaver Spiderlings, probably Argiope or Araneus species. The adult spider is an Antmimic Spider in the genus Castianeira, probably Castianeira cingulata.