Interesting subject especially if you are involved in the Pest Control industry.
White tail spider bites on certain people can be quite serious, particularly if you have circulation problems and are bitten on the lower limbs or extremities.
Dont underestimate these critters they can - and do bite.
They do not have webs like most other spiders but hunt by stealth for their meal. For this reason they are very mobile and can move from area to area within your home once inside.
They are very agressive and generally live in gardens and mulsch( Pine Bark etc )
They are easily introduced into your home on things like, firewood, childrens toys that are bought inside, shoes, washing baskets, and they can come in if the weather gets hot or wet and they become uncomfortable outside.
Dont let anyone play down the effects of this spiders bite, it can be quite serious depending on the victim.
I am not promoting business as most who read this would not have a clue who I am, however because I only treat for health pests and not termites as most others, most of my work involves treating for spiders and I have seen first hand, the results of these spider bites.
If you have got these spiders inside your house or any other area then I would be considering proffessional treatment.
A bit off the subject of brewing but as a lot of us work ( brew ) in sheds we all should be aware of the possible dangers.
B B B.