6 Female Juvenile Black Widow Spider Pictures
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Our bug control technicians have been getting lots of problems about spiders lately. A couple of customers have even come by our office, bringing dead spiders in Ziploc bags so we can identify the intruders. In both these cases, the perpetrators were sac spiders.
Although the bite of the agrarian sac or yellow sac spider frequently 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, generally when trapped in ones clothes or bedding. The bite stings and creates a red welt and irritation similar to a mosquito bite. (If any kind of insect bite creates a serious or unusual reaction, call a physician promptly.).
The sac spider normally builds its sac-like web in corners, behind shelves and framed pictures and can often be identified running across walls or ceilings. It is light yellow with a darker stripe down the center of its upper abdomen and, like a lot of spiders, has eight eyes prepared in two rows at the top of its head, tough to see with the naked eye.
A lot of spiders especially 6 Female Juvenile Black Widow Spider Pictures are not unsafe and can generally be removed by removing their webs and/or eggs. Spiders seen out in the open during the day are unlikely to bite people.
Although we commonly hear reports of the brown recluse spider in our North-Central California region, in fact the brown recluse doesn't live in California. The only recluse spider native to California lives in the Southern California desert and is less poisonous to humans than its close relative, the non-native Chilean recluse spider, which has become established in Los Angeles County. Recluse spiders have a violin-shaped mark on their heads, which may or may not be conveniently distinguished, and have only six eyes. They are active at night and tend to stay hidden in dark, undisturbed places like storage boxes or old clothes or shoes.
The only California spider known to inflict severe injury to humans is the black widow, which generally is found outdoors in hidden locations such as in wood piles or underneath decks or sheds. Take care when you're outside gardening, especially at this time of year, when the weather is still cozy and sunny. The black widow's web may not be visible in the sunlight, and you can conveniently stick your fingers into the wrong place.
The adult female black widow has a shiny black body, slender black legs, and a red or orange hourglass-shaped mark on the underside of a large, round abdomen. The body, excluding legs, is 5/16 to 5/8 inch long.
The best way to prevent spiders in your home is to vacuum up webs and avoid clutter build-up that can supply hiding places. To prevent spiders from entering your home or office building, seal foundation cracks and other access holes, keep window and door screens in good repair service, and keep areas around the building foundation free of clutter.
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