Appearance
Slender, dark grey, around 12 to 18 millimetres, with a pale mark at the tip of the abdomen.
Behaviour
Hunt at night and shelter in bedding, clothing and dark corners by day.
Risk to your home
Bites can be painful, though the feared link to skin ulcers is not supported by research.
How I deal with white tail spiders
If white tail spiders are a problem in your home, the safest and most effective option is a professional treatment tailored to the species and your property. My white tail treatment service targets the source rather than just the pests you can see.