Spiders, long a favored subject of sci-fi movies and horror novels, seem to provoke an especially strong yuck factor in humans. Although we know on an intellectual level that they have many beneficial purposes in the eco-system, including eating other insect pests, most of us don’t want them in our kids’ bedrooms. Now that warm weather has arrived, spiders are proliferating outdoors and often making their way into our homes. Of the more than 50,000 species of spiders, only a relatively few of them are able to bite humans, for the simple reason that most have mouth parts too small to break human skin. Only one type of California spider, the Black Widow, is considered to be a serious medic

Our pest control technicians have been getting lots of complaints about spiders lately. A couple of customers have even stopped by our office, bringing dead spiders in Ziploc bags so we could identify the intruders. In both these cases, the culprits were identified as sac spiders by staff of our Sacramento pest control company. Although the bite of the agrarian sac or yellow sac spider commonly found in our homes is not fatal to humans, this type of spider is believed to be responsible for more bites than any other spider, usually when trapped in ones clothes or bedding. The bite stings and causes a red welt and irritation similar to a mosquito bite. (If any insect bite causes a severe or