Currently viewing the category: "Crevice Weaver Spider"
What's That Bug? does not endorse extermination

Subject:  Spider named Aragog
Geographic location of the bug:  Southern California
Date: 01/07/2018
Time: 01:27 PM EDT
I can’t find a thing on this lovely ‘lady’. My son purchased an old Airstream Trailer, drove it home (apx 30 miles) and saw her trying to climb up one of the tires the next morning. We have no clue as to ‘where ‘ she actually came from. We live in the mountains where it gets very cold and my concern for her was if she was from ‘down the hill’ it was far too cold for her up here. She is now set up in a quite comfy critter keeper. I have 2 Tarantula Females that I have owned for 20+ years now. What’s another spider to care for! Can you please tell me what she is? We have freaked out about a ‘Recluse’ but she has built a ‘Widow’ type web into her little tree branch in her keeper. She does not appear aggressive or fast moving whatsoever. I’m actually stumped. She’s larger than a quarter.  Spread out I’d say half dollar coin sized. She’s big! We are now calling her Aragog. Thanks.
How you want your letter signed:  Keeper of T’s

Female Southern  House Spider

Dear Keeper of T’s,
We are posting your Spider images prior to identification.  It appears that the eyes on this individual are not very well developed, indicating is most likely spends its time in low light situations and also that it does not depend upon eyesight to hunt.  We will do additional research and then get back to you.  Perhaps one of our readers will have an idea how to classify your Spider.

Female Southern House Spider

Update:  Female Southern House Spider
Thanks to Cesar Crash who wrote in that this is a female Southern House Spider, a species pictured on BugGuide.

Goodness Gracious Thank You! Now I shall provide a bit more Branchery for webbing! hehe
ŞĦĄŔŐŊ

What's That Bug? does not endorse extermination

Subject: Brown Recluse?
Location: Charleston, SC
July 21, 2017 8:16 pm
Greetings,
I was sitting on my sofa and I saw this spider walk across my living room. It looks to me that it could be a brown recluse. Or maybe a trap door spider?
Any help would be greatly appreciated!
Signature: -John in Charleston, SC

Male Southern House Spider

Dear John,
This does appear to be a Brown Recluse Spider, and the large pedipalps indicate this is a male, similar to the one pictured in this BugGuide posting.

Correction:  Male Southern House Spider
Thanks to Catherine Scott and Sean McCann for writing in with comments correcting our identification of this male Southern House Spider.

What's That Bug? does not endorse extermination

Subject:  Large Spider scurries from under the recycle bin!
Location:  Mount Washington, Los Angeles, California
December 13, 2016 11:30 AM
Alas, we did not have a camera handy when we made this exciting sighting of a reddish colored, male Southern House Spider which is reported from Los Angeles according to BugGuide.  We had to take a close look to ensure this was not a Recluse Spider.

Southern House Spider

Southern House Spider (from our archives)

What's That Bug? does not endorse extermination

Subject: What’s this spider
Location: Santa Cruz Mountains California
November 7, 2016 8:51 am
I was out I was out getting silverfish for my blue belly lizards. And underneath one of the two by fours on the deck was this pretty large spider. which I have never seen in my 50 years living here. I like spiders because they eat mosquitoes and other nasy pests. so can you help me identify it?
Signature: Fixitwill

Possibly Female Crevice Weaver Spider

Possibly Female Crevice Weaver Spider

Dear Fixitwill,
Though your image lack critical clarity, we believe this might be a female Crevice Weaver Spider in the genus
Kuculcania.  See BugGuide for some images.

Wow thank you so much for your time!! It was hard to get a good picture because it kept moving around on me.

What's That Bug? does not endorse extermination

Subject: Spider
Location: Las Vegas, NV
January 19, 2016 7:42 pm
Just want to know what kind of spider is this and other information. It showed up at my work.
Signature: J. Bressler

Crevice Weaver Spider

Crevice Weaver Spider

Dear J. Bressler,
We believe this is a Crevice Weaver Spider in the genus
Kukulcania, and a member of the genus found further east is known as the Southern House Spider.  You can compare your image to this BugGuide image and to Southern House Spiders on Spiderz Rule.

What's That Bug? does not endorse extermination

Subject: Recluse or Harmless?
Location: Antelope Valley, California
July 30, 2015 2:50 pm
I found this big guy in my yard, polled my friends, half say it’s a brown recluse, half say it’s harmless… One guy said “it’s just a penny”…
I live in the high desert in Southern California, it’s super dry and hot. Help me out here!
Signature: -Roni

Male Crevice Weaver Spider, we believe

Male Crevice Weaver Spider, we believe

Hi Roni,
We are going to side with the half that say it is harmless.  Brown Recluse Spiders have a violin pattern on the cephalothorax .  Male Crevice Weaver Spiders in the genus
Kukulcania, including the male Southern House Spider, Kukulcania hibernalis, are frequently mistaken for Brown Recluse Spiders.  BugGuide only lists the Southern House Spider as far west as Texas, but a relative, Kukulcania geophila, is found in California and this image from BugGuide looks very similar to your individual.  Of the entire genus Kukulcania, BugGuide notes:  “Males look very similar to the Recluse spiders, except they have much longer pedipalps, eight eyes (not six as in the Recluse family), and very long front legs.”  Finally, according to BugGuide, the Brown Recluse Spider does not get as far west as California.

What's That Bug? does not endorse extermination