The long and thick front pairs of legs on the Bark Crab Spider help explain part of this arachnid's name.
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.
Scientific Name: Bassaniana versicolor
Size (Adult; Length): 4mm to 7mm (0.16in to 0.27in)
Note: An insect's reach is not limited by lines drawn on a map and therefore species may appear in areas, regions and/or states beyond those listed above as they are driven by environmental factors (such as climate change), available food supplies and mating patterns. Grayed-out selections indicate that the subject in question has not been reported in that particular territory. U.S. states and Canadian provinces / territories are clickable to their respective bug listings.
Legs: Spiders have four pairs of legs and these are attached to the cephalothorax.
Pedipalps: Small appendages near the mouth used as taste and smell organs.
Cephalothorax: Contains eyes, head, mouthparts, and legs.
Abdomen: Contains various organs related to digestion, reproduction, and web-making.
Spinnerets: Used in the production of spider silk for fashioning webs or catching prey.
NOTE: Unlike insects, spiders have both an endoskeleton (internal) and exoskeleton (external).