Reports of large spiders invading homes have been circulating across the UK, with the onset of spider mating season in full swing. This time of year, known as “spider season,” typically lasts from September to mid-October, occasionally extending into November. As temperatures drop, spiders seek shelter indoors to find food and mates. Female spiders lay hundreds of eggs during this season, prompting them to venture out in search of male partners. The Cardinal Spider, reaching lengths of up to 14cm, is commonly found in buildings and on walls, making it the largest spider species in the UK. Additionally, experts have confirmed sightings of tarantulas in the country, particularly the purseweb variety, which is notably smaller in size, ranging from 1cm to 3.8cm.
Adele Brand, a wildlife researcher at BBC’s Countryfile, noted that the purseweb spider exhibits characteristics resembling tarantulas, such as stout legs and prominent “fangs” called chelicerae. Unlike other British spider species that use pincer-like movements, the purseweb spider operates its chelicerae like parallel daggers. While these spiders are more commonly sighted in areas like the North and South Downs, New Forest, and regions in south-eastern England, there have been sporadic sightings in locations as far north as Cumbria and south-western Scotland.
As the search for shelter and mates intensifies during spider season, residents throughout the UK have reported encounters with these arachnids in their homes. Despite the alarming size of some species, like the Cardinal Spider, and the presence of tarantulas like the purseweb variety, experts reassure the public that these spiders do not pose significant threats to humans and are simply seeking refuge and companionship during this natural cycle of life. With the cooperation of wildlife enthusiasts and experts, these fascinating creatures can be observed and appreciated from a safe distance as they navigate their annual migration indoors.