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False Black Widow Spiders are usually found in walls, fences and the bark of trees and are also common around dwellings and gardens as well as under rocks and wood. Some species of False Black Widow Spiders will actually prey on Black Widow Spiders, as well as other spiders which are considered hazardous to humans. False Black Widow Spiders mate in the spring and the females can produce three or more egg sacs or cocoons from May through to July.
The bite itself from the False Black Widow Spider is not usually felt, however, within a short space of time, a local burning sensation is followed by radiating pain. False Black Widow Spiders construct a cobweb of an irregular tangle of sticky silken fibres.
The Redback Spider antivenin has been shown to be effective at treating bites from False Black Widow Spiders, after it was mistakenly administered to a bite victim who was incorrectly believed to have been bitten by the far more dangerous Redback Spider.

As with other web-weaving spiders, False Black Widow Spiders have very poor eyesight and depend mostly on vibrations reaching them through their webs to orient themselves to prey or warn them of danger such as larger animals that could injure or kill them.
All stages of the immature spiders can be found in human-made structures throughout the year, as can the adults. Frequency of bites from False Black Widow Spiders have increased as the species spreads into the south and east of England including Devon and Dorset.
Not all Steatoda species resemble widows – many have distinct colouring and are significantly smaller. False Black Widow Spiders are not aggressive spiders and most injuries to humans are due to defensive bites delivered when a spider gets accidentally disturbed. It is possible that some bites may result when a spider mistakes a finger thrust into its web for its normal prey, however, intrusion by any large creature will normally cause these spiders to flee.

Apart from the colour 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). False Black Widow Spiders are now increasing in numbers in the United Kingdom due to global warming. There have been confirmed sightings in Westbourne, Parkstone, Alder Hills and Boscombe and further afield in February 2012 a young Father was bitten by a False Black Widow spider in Southampton, which made the news headlines.

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