The presence of Brown Recluse spiders in Alberta is a subject of curiosity and concern for many residents.

Given the potentially harmful nature of this spider, it’s important to set the facts straight.

Many people claim to have seen them in southern Alberta, such as Calgary. Perhaps they have, as it is technically possible, but it is usually a case of mis-identification.

Does Alberta Have Brown Recluse Spiders?

No, Brown Recluse spiders are not native to Alberta.

Instances of Brown Recluse spiders in the province are extremely rare and are usually the result of the spider being transported from its native regions in the southern United States.

Where Brown Recluse Spiders Are Found

Brown Recluse spiders are predominantly found in the southern United States, specifically in states like Texas, Oklahoma, and Missouri. They are generally not found in colder climates, which makes Alberta an unlikely habitat for them.

If you come across one, it means it took a long trek to get here. Maybe it hitched a ride on a transport load of some kind.

Encountering one of these in Alberta would be extremely lucky, and unlucky at the same time!

Difference Between Brown Recluse and Hobo Spiders

Brown Recluse spiders and Hobo spiders are often misidentified due to their similar appearance. However, Hobo spiders are more common in Alberta.

Unlike the Brown Recluse, Hobo spiders have a more aggressive pattern on their abdomen and lack the distinctive violin-shaped mark found on the Brown Recluse.

What to Do if You Encounter One

If you believe you’ve encountered a Brown Recluse spider in Alberta, it is crucial to capture or photograph the specimen for proper identification.

If bitten, seek immediate medical attention. The likelihood of encountering a Brown Recluse in Alberta is extremely low.

Here is an official Alberta Health resource on what to do about a bite of this kind.

Deadliest Spiders in Alberta

The most venomous spider found in Alberta is the Black Widow spider. While their bites can be painful and require medical attention, they are generally not fatal when treated promptly.

In Summary

• Brown Recluse spiders are not native to Alberta.
• They are often misidentified as Hobo spiders, which are more common in the province.
• If encountered, capture or photograph the spider and seek medical attention if bitten.
• The Black Widow spider is the most venomous spider native to Alberta.