GulfGG is right on about Brown Recluse Spiders - they're nasty! Having grown up in the South, I saw many Black Widows but never met anyone bitten by one. Brown Recluse Spiders were another matter. These darn rascals get into your clothes at night when you're outdoors. We seemed to have an epidemic of BRS bites when I was at Ft Benning (southwest GA). They'd get in your kevlar and bite you on the head when you put it on - we got to beating helmets and clothing every morning and they'd fall out. I saw many bitten soldiers with festering wounds from the bites that would get infected and result in guys getting recycled in schools or dropped. They were literally a real pain. I'm not sure about the range of this critter - if we have 'em in PA I have never seen one here but, man, they're all over the South.