Adults occur from June to November.įalse Black Widow Spiders construct a cobweb of an irregular tangle of sticky silken fibres. Originally a native of southern Europe as far east as Georgia. False Black Widow Spiders are also common around dwellings and gardens as well as under rocks and wood. False Black Widow Spider Habitat and Spider Websįalse Black Widow Spiders are usually found in walls, fences and the bark of trees. Apart from the color differences from the Black Widow spider (Latrodectus), False Black Widow Spiders have teeth on their chelicerae (mouth parts found in arachnids, Merostomata (horseshoe crabs) and Pycnogonida (sea spiders). Most False Black Widow Spiders are a brownish color with pale markings. Not all Steatoda species resemble widows – many have distinct coloring and are significantly smaller. The males body is thinner and more elongate than the females, however, the color pattern is similar. False Black Widow Spiders have round, bulbous abdomens. Females are larger than males and measure up to 15 millimetres while the males measure up to 10 millimetres. False Black Widow Spider Characteristicsįalse Black Widow Spiders have a similar shape to widow spiders. (see False Black Widow Spider Venom below). False Black Widow Spiders are less harmful to humans than Black Widows, however, their bite can still be extremely painful. They are found among human populations worldwide. Many spiders in the genus ‘Steatoda’ are mistaken for Black Widow spiders and therefore known as ‘ False Black Widow Spiders‘.
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