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Image Credit: Greg C. in NJ
Dramatic black lines on a light body draw human attention, but the Stealthy Ground Spider's prey never sees it coming.
Stealthy Ground Spiders are web-less hunters. While they create silk-based homes for themselves, they are active hunters. Speed and stealth allow this species to successfully chase down insect prey. The two thick black lines on the barrel-shaped abdomen are easy to see and they reach all the way to the head. While they are natural outdoor hunters, they may wander inside homes, especially inside basements and attics, looking for a meal. Like other spiders, the Stealthy Ground Spider uses venom to help capture and kill its prey, but this venom is not poisonous to humans. The species is not usually interested in human activity and eagerly runs from disturbances.
Scientific Name: Cesonia bilineata
Size (Adult; Length): 7mm to 15mm (0.27in to 0.59in)
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).