This autumn, UK households are bracing for an influx of false widow spiders, following a hot summer that has boosted their breeding. The species, which arrived in Britain a century ago on ships from warmer regions, has thrived during recent heatwaves, according to reports.
The noble false widow, the largest of the six species found in the UK, can have a body length of up to 14mm and a leg span covering a 50p coin. Its dark brown front and legs, along with cream and dark markings on the abdomen—sometimes skull-shaped—make it distinctive, though markings can be minimal.
While bites are typically no worse than a wasp sting, lasting 12 to 24 hours, they can occasionally require hospital treatment. The Natural History Museum notes that false widows are related to the deadly black widow but are far less dangerous.
The British Pest Control Association advises vacuuming webs and spiders, or using insecticidal sprays if necessary. Sealing potential entry points in porches and conservatories can also help reduce contact. For identification concerns, the Natural History Museum offers advice.
