Xysticus – Ground Crab Spider

Spiders of the Xysticus genus, also called ground crab spiders are a rather indistinct species. As all crab spiders, they look similar to crabs. The brownish coloring, along with the splotchy pattern is optimal for blending in with its natural habitat than to stand out. Depending on the species of the ground crab spider, the color may be more beige or darker brown. The “deadly ground crab spider” is an all orange-colored spider.

Xysticus - Ground Crab Spider size compared to a coin
Photography by: K. J. Ester – Madison Heights, Mi.

Xysticus Size

The Xysticus genus contains some one of the smallest Crab Spiders. The Ground Crab Spider pictured above is approximately only 3/16” (5 mm) across, including the legs. Typically, Xysticus spiders don’t grow larger than 0.4 inch (10 mm).

Bites

The bite of a Crab Spider will not have any negative, dangerous impacts for humans. Ground crab spiders are non-aggressive and will run away if they face any danger. They will only attack of the feel the need to defend themselves.

Xysticus Scientific Classification

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Chelicerata
  • Class: Arachnida
  • Order: Araneae
  • Infraorder: Araneomorphae
  • Family: Tomisidae
  • Genus: Xysticus
Xysticus - Ground Crab Spider photo
Photography by: K. J. Ester – Madison Heights, Mi.

Distribution of Xysticus crab spiders in the USA

Xysticus ground crab spider USA

Various species of Xysticus crab spiders can be found throughout the United States – Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Xysticus – Ground Crab Spider

30 thoughts on “Xysticus – Ground Crab Spider

  1. Hi I found this spider in my sink and its about the size of a nickel. Im currently living in northern Texas. I’ve looked through all of Google images and still can’t figure out what species this is🤔

  2. Howdy!

    Just moved to Grand Rapids in Michigan. Got out of the car and saw a pale ash-gray spider about 2 cm long; pretty unremarkable looking, but for what seemed to be a perfectly round abdomen, the size of a pea or slightly larger. Crawling fairly rapidly, near the house, on a warm day. Didn’t have a chance to take a picture. Any identification possible from this? Thanks In advance.

    Mark Joseph

  3. Felt this crawling on my hand in my bed. Thought it may be a brown recluse. Doesn’t exactly match the pictures I’ve seen though. I’m in the Dallas, Texas area.

  4. Inside, sitting on the bathroom door trim, southeastern South Dakota, overall size of about a quarter, slightly larger maybe. Picture is zoomed in slightly. Sort of has the crab shape.

  5. Found inside, in Middle Tennessee. Very small. Size can be seen in relation to the tan carpet below. It seemed to scuttle like a crab or a large tick.

    1. Encontré esto al costado de la cocina y me levantaba las patas delanteras como para pelear la verdad no tengo ni idea de que es y soy fe argentina

  6. I found this spider on my shirt after walking through a web outside. The web was from the stair rail for the deck to the house. I’m near Richmond, VA. Any thoughts on what this could be?

  7. Found this little thing laying flat. Thought it was dead at first but it then moved. Between 1/8th inch and 1/4 inch in size

  8. Found living in a dried up okra pod in College Station Texas. Two front legs are much longer than back legs and it holds them up and out (like a crawfish) in a “fight me” pose. Okra seed is also in picture for size comparison. Underside and back two sets of legs are paler in comparison to rest of body.

  9. Found this spider on my driveway. Haven’t seen one like it before. Please let me know what it is. Thanks!

  10. Found this spider in a potted lilac in dayton, nevada. Not sure if it’s a true spider. Either it has 4 pairs of legs and the first set and last set are Itty bitty, or it only has 6 legs and those first two are part of its mouth. It did threat display when I went to take a picture. I’ve been watching it walk around in the pot and it tends to keep its but pointed upwards.

  11. I live in PA and have been seeing one of these around the house every once and a while and wanted to see if I should be concerned or not. Would love to know what is. Thanks!

Leave a Reply

Your email address will not be published.

The maximum upload file size: 15 MB. You can upload: image. Drop file here

Scroll to top