Diversity And Distribution Of Spiders In California

Spiders of California: A Comprehensive Overview

Diversity and Distribution of Spiders in California

California is home to a vast array of spider species, with over 67 unique species confirmed through sightings by contributing members of Spider ID. These spiders exhibit a wide range of ecological roles, playing a crucial part in the state's ecosystem.

Common House Spiders in California

One of the most prevalent house spiders in California is the cobweb spider, also known as the false widow spider (Steatoda). These spiders are typically small, brown, and found in undisturbed areas such as basements, closets, and garages.

Other common house spiders in California include:

Orb weavers

Jumping spiders

Cellar spiders

These spiders generally avoid human contact and pose minimal threat.