Spiders in Alberta

There are several species of spiders in Alberta, though most of them are not observed in cities like Calgary. However, they become more active during the spring, leading to people getting bitten. Most spiders will avoid confrontation and flee, and generally, spider bites will not cause significant harm, thanks to modern treatments.

Common Spiders: Cross Orb-weaver Spider, Bold Jumping Spider

Big Spiders: Striped Fishing Spider, Dark Fishing Spider

Dangerous Spiders: Western Black Widow Spider, Hobo Spider

Spiders in Alberta

Most Venomous

Comb-footed Spiders

  • Western Black Widow Spider (Latrodectus hesperus)

Funnel Weaver Spiders

Less Venomous

Orb-weaver Spiders

Crab Spiders

Funnel Weaver Spiders

Nursery Web Spiders

Jumping Spider