BugFinder Insects by State Spiders Butterflies & Moths Bees, Ants, & Wasps Beetles All Bugs Videos (YouTube)

Bark Crab Spider (Bassaniana versicolor)

Detailing the physical features, habits, territorial reach and other identifying qualities of the Bark Crab Spider

Loading SVG image placeholder
Image Credit: Arch Baker
Full-sized image of the Bark-Crab-Spider Thumbnail image of the Bark-Crab-Spider
Image Credit: Arch Baker
Full-sized image #2 of the Bark-Crab-Spider Thumbnail image #2 of the Bark-Crab-Spider
Image Credit: C. Wilson taken in Bailey, CO
Full-sized image #3 of the Bark-Crab-Spider Thumbnail image #3 of the Bark-Crab-Spider

The long and thick front pairs of legs on the Bark Crab Spider help explain part of this arachnid's name.

Updated: 01/26/2021; Authored By Staff Writer; Content ©www.InsectIdentification.org
When moving, Bark Crab Spiders resemble a crab by walking sideways or backwards as well as forward. The long front pairs of legs are helpful in restraining insect prey while it is bitten. The black spider is covered in light brown or ivory speckles. The speckling patterns vary between species. It may allow the spider to more closely resemble bird droppings or variations in tree bark coloring, making it easier to catch unsuspecting insects. The abdomen is wide and flat.

Bark Crab Spiders do not bark. They silently roam the exterior of trees, searching for insects to eat. Bark Crab Spiders are usually found in woods, forests and parks on tree bark, though they also include short plants, the forest floor, and areas under stones and dead wood as part of their hunting ground. They are active hunters and do not spin webs for ensnaring prey. Spider silk for this species may be mostly reserved for courting, where males adorn prospective females with strands of silk.

General Characteristics
Capability, Shape, Texture/Pattern, Benefits, Dangers
Fast insect icon


Taxonomic Hierarchy
Species Breakdown
Kingdom: Animalia
  Phylum: Arthropoda
    Class: Arachnida
      Order: Araneae
        Family: Thomisidae
View More
          Genus: Bassaniana
View More
            Species: versicolor
Identifying Information
Size, Colors, Features
Scientific Name: Bassaniana versicolor
Category: Spider
Size (Adult; Length): 4mm to 7mm (0.15" to 0.27")
Colorwheel Graphic Colors: black, tan
Descriptors: crab, fast, wide, speckled

Relative Size Comparison
Typical Size Between 4mm (0.2in) and 7mm (0.3in)
Lo: 4mm
Md: 5.5mm
Hi: 7mm
Territorial Map*
U.S., Canada, and Mexico
State of Alabama graphic
State of Arizona graphic
State of Arkansas graphic
State of California graphic
State of Colorado graphic
State of Delware graphic
State of Florida graphic
State of Georgia graphic
State of Idaho graphic
State of Illinois graphic
State of Indiana graphic
State of Iowa graphic
State of Kansas graphic
State of Kentucky graphic
State of Louisiana graphic
State of Maine graphic
State of Maryland graphic
State of Michigan graphic
State of Minnesota graphic
State of Mississippi graphic
State of Missouri graphic
State of Montana graphic
State of Nebraska graphic
State of Nevada graphic
State of New England graphic
State of New Jersey graphic
State of New Mexico graphic
State of New York graphic
State of North Carolina graphic
State of North Dakota graphic
State of Ohio graphic
State of Oklahoma graphic
State of Oregon graphic
State of Pennsylvania graphic
State of South Carolina graphic
State of South Dakota graphic
State of Tennessee graphic
State of Texas graphic
State of Utah graphic
State of Virginia graphic
State of Washington graphic
State of West Virginia graphic
State of Wisconsin graphic
State of Wyoming graphic
Canadian territory of Alberta graphic
Canadian territory of British Columbia graphic
Canadian territory of Manitoba graphic
Canadian territory of New Brunswick graphic
Canadian territory of Newfoundland and Labrador graphic
Canadian territory of Ontario graphic
Canadian territory of Quebec graphic
Canadian territory of Saskatchewan graphic
Territory map graphic of the country of Mexico
Contiguous United States shape map layer graphic
Prince Edward Is.  
* MAP NOTES: The territorial heat map above showcases (in red) the states and territories of North America where the Bark Crab Spider may be found (but is not limited to). This sort of data is useful when attempting to see concentrations of particular species across the continent as well as revealing possible migratory patterns over a species' given lifespan. Some insects are naturally confined by environment, weather, mating habits, food resources and the like while others see widespread expansion across most, or all, of North America. States/Territories shown above are a general indicator of areas inhabited by the Bark Crab Spider. Insects generally go where they please, typically driven by diet, environmental changes, and / or mating habits.


Site Disclaimer  |  Privacy Policy  |  Cookies  |  Sitemap

Beetle Identification Butterfly Identification Caterpillar Identification Spider ID

www.InsectIdentification.org • Content ©2006- InsectIdentification.org • All Rights Reserved. The InsectIdentification.org logo, its written content, and watermarked photographs/imagery are unique to this website (unless where indicated) and is protected by all applicable domestic and international intellectual property laws. This resource uses publically-released information. Material presented throughout this website is for entertainment value and should not to be construed as usable for scientific research or medical advice (regarding bites, etc...).Please consult licensed, degreed professionals for such information. By submitting images to us (InsectIdentification.org) you acknowledge that you have read and understood our Site Disclaimer as it pertains to "User-Submitted Content". When emailing please include your location and the general estimated size of the specimen in question if possible. Please direct all inquiries and comments to insectidentification AT gmail.com.

www.InsectIdentification.org • All Rights Reserved • Content ©2006-

Facebook Logo YouTube Logo