Species guide
Southern black widow
VenomousLatrodectus mactans
How to recognise it
A glossy jet-black spider with a red hourglass mark on the underside of its round abdomen. Builds a messy, strong web low down in sheltered spots.
Is it dangerous?
Venomous — a bite can cause intense muscle pain and cramping and other systemic symptoms. It's rarely fatal with medical care, but children and the elderly are more at risk.
Commonly confused with
- Common house spider — dull brown, no red hourglass
What to do
Don't handle it. Seek medical care promptly if bitten, especially for a child.
Recorded 8,818 times in the wild worldwide.
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