Introduced-species-impact
Guides
Steatoda borealis
Boreal Combfoot
Steatoda borealis is a cobweb spider native to North America, belonging to the family Theridiidae. The species has been documented in the United States and Canada. Research indicates it faces competitive displacement from the introduced European congener Steatoda bipunctata in human-modified habitats, though it persists in forested areas with minimal human disturbance.