Watch List
Brown recluse spiders are very rare in Ontario. The established range is the south-central United States. Most "brown recluse" reports in Ontario are misidentifications of harmless native species.
Body 6-20 mm, light to medium brown with a distinctive darker violin-shaped marking on the back of the cephalothorax. Six eyes arranged in three pairs (most spiders have eight). Sleek body without bold markings.
Common Ontario species misidentified as brown recluse: yellow sac spider, hobo spider, woodlouse spider, and various ground spiders. If you found a spider that looks brown and you live in Ontario, it is almost certainly not a brown recluse.
Very rare. Occasional individuals turn up in shipped goods (boxes from the United States, sometimes in clothing or luggage). Established populations in Ontario have not been documented.
Capture it (jar with lid) without handling and call us. We can confirm identification or refer you to an entomologist. If you have been bitten and suspect recluse, seek medical attention immediately and bring the spider if safely possible.
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