
Community identification
Bark Crab Spider
Bassaniana utahensis
- Order & Family
- Araneae: Thomisidae
- Size
- 4 to 7 mm (males are typically smaller than females)
Natural Habitat
Commonly found on the bark of trees, logs, and under foliage in wooded areas or gardens where its camouflage is effective.
Diet & Feeding
Carnivorous; it is an ambush predator that feeds on a variety of small insects including flies, beetles, and ants.
Behavior Patterns
Unlike many spiders, it does not spin a web to catch prey. Instead, it relies on camouflage to wait motionless for prey to come within reach and then strikes with its front legs.
Risks & Benefits
Benefits the ecosystem by controlling pest insect populations; they are generally harmless to humans and rarely bite unless handled roughly.