There are more than 900 species of spiders native to Texas, but only a handful that are dangerous to humans. Most spiders are at worst harmless, and usually beneficial because they trap and eat insects. Although all spiders have poison glands, only a few are harmful to humans. Of these, only two species are commonly found in Texas: the Black Widow and the Brown Recluse.
Black Widow Spiders
Female black widow spiders are shiny black in color, with a distinctive red or orange hourglass-shaped marking on the underside of the abdomen. They're about half an inch in size and are live in dark, secluded, protected places like woodpiles, hollow stumps, outhouses, animal burrows, electrical and mechanical boxes, old tires, rubble, and crawl spaces.
Black widow spider bites usually are not fatal to healthy adults, but medical care should be obtained immediately as a precaution if a person is bitten. This is especially important if the person is a child or an elderly person, has known allergies to spider bites or other types of stings (bees, wasps, etc), or has a heart, respiratory, or any other chronic health condition.
Brown Recluse Spiders
Brown recluse spiders or "fiddle backs" range in size from one-quarter to three-quarters of an inch in length and are predominantly yellowish-brown in color. They have a dark brown, violin-shaped marking on the top of the cephalothorax, and have six eyes (two in front on two on each side). They build their webs in secluded locations such as dark corners, behind stored objects, in hollow tree stumps, and in manholes and utility tunnels.
Brown recluse spider bites can be serious or fatal. In most cases, redness and swelling will occur at the bite site within a few hours after being bitten, sometimes followed by nausea, fever, joint pain, dizziness, general weakness, and restlessness. The skin around the bite site then developed a white, raised blister and begins to die. This is called necrosis, and it may spread to surrounding tissue and cause gangrenous ulcers.
Anyone bitten by a brown recluse spider should seek medical care immediately.
For help with spider control or any exterminating need, please contact us.
817-589-1632 · Back to Top