The Running Crab Spider is always on the hunt for food. Its remarkable speed make it a stealthy predator while simultaneously making it hard to catch.
These fast-moving spiders are agile enough to outrun predators as well as human hands trying to collect them. Their camouflage coloration makes it difficult to spot them in nature when they aren't moving.
Running Crab Spiders have a front pair of legs that look longer than the back legs, but they really aren't. They are close relatives to members of the Crab spider family so it may be easy to mistake them. The way they hold and use their front legs is similar to true Crab Spiders.
Running Crab Spiders do not spin silk webs to catch insects. They chase them down, bite them to inject their venom and consume them when they like.
Scientific Name: Philodromus spp.
Size (Adult; Length): 2mm to 11mm (0.08in to 0.43in)
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).