Metaltella simoni is a common spider that can sometimes be found in homes. Many people become concerned when they encounter spiders, often wondering if these creatures pose any danger. This article provides clear information on Metaltella simoni, addressing its characteristics and the implications of a bite.
Understanding Metaltella simoni’s Venom
Like most spider species, Metaltella simoni spiders possess venom, but it is not considered medically significant to humans. Bites from this spider are rare and typically occur in self-defense if the spider feels threatened or is handled roughly. A bite from Metaltella simoni is generally comparable to a bee sting, resulting in mild, localized symptoms.
Symptoms of a bite usually include local pain, minor swelling, redness, and possibly itching at the bite site. These reactions typically subside on their own. Unlike the venom of medically significant spiders such as black widows or brown recluse spiders, Metaltella simoni’s venom does not cause severe systemic reactions or tissue damage. Its toxins primarily affect their insect prey and are not dangerous to larger animals or humans.
Identifying the Spider and Its Typical Habitats
Metaltella simoni is often referred to as a hacklemesh weaver. These spiders are medium-sized; females typically measure about 8-9 mm in body length, while males are slightly smaller at 7-8.5 mm. Their bodies are usually brown, with the abdomen appearing dark gray or almost black, sometimes featuring lighter spots on the female’s abdomen or pale/yellow patterns on the male’s back. The front part of their cephalothorax around the eyes and mouth is often darker than the rest of the body. They have relatively long and slender legs.
Originally from South America, Metaltella simoni was introduced to the United States in the 1940s and has since established populations, particularly in the Gulf Coast states and parts of California. These spiders construct erratic and tangled webs, often described as fluffy messes of silk. They are found both outdoors, under rocks, logs, and leaf litter, and indoors in basements, crawl spaces, and cluttered areas. They might enter homes seeking shelter or prey. Metaltella simoni can sometimes be mistaken for other spiders, including the brown recluse, though it lacks the distinct violin-shaped marking of the brown recluse.
What to Do After a Bite
If bitten by a Metaltella simoni spider, clean the affected area thoroughly with mild soap and water. Apply a cold compress to reduce localized pain and swelling. Elevating the bitten area can also help minimize swelling. Over-the-counter pain relievers can manage discomfort, and antihistamines may help with itching.
Monitor the bite site for signs of infection, such as increasing redness, warmth, pus, or persistent pain. Medical attention is generally not needed for Metaltella simoni bites due to their mild nature. However, consult a healthcare provider if symptoms worsen, signs of infection develop, or if an allergic reaction occurs, such as difficulty breathing, facial swelling, or a spreading rash. Also consult a healthcare provider if the spider type is unknown and there is concern about a bite from a more medically significant species.