I took this False widow spider out of my shed .
Adult spiders are capable of biting humans. Spiders are not aggressive and most injuries to humans are defensive bites delivered when a spider becomes unintentionally squeezed or pinched.
Steatoda nobilis the false widow spider will only bite defensively when under attack.
The bite of the false widow spider can be medically significant in humans, but usually without any long-lasting effects.
Reports from those bitten describe a certain amount of pain, which often radiates along the limb or part of the body where bitten, and often a degree of swelling in the affected part. Some describe fever and a general feeling of being unwell. These symptoms may last for a couple of days but the total effect is unlikely to be more serious than that.
As for bites from other species in the genus Steatoda, it can produce a set of symptoms known as steatodism.
More serious symptoms have occasionally been reported, but are likely to be the exceptional reaction of individuals to the venom. It is always advisable to seek medical attention if symptoms persist.
The false widow spider commonly occurs along a stretch of the south coast of England from Devon through to Dorset, Sussex and more recently along to Essex.
Steatoda nobilis is now spreading
quite rapidly south to London (Surrey) and Berkshire while increasing in Essex
northwards with recent records from Leicestershire and Barry, South Glamorgan
Steatoda nobilis has been established near the south coast of England for over a century with strongholds on the Dorset and Hampshire coast.
The false widow spider is thought to be repeatedly introduced at ports with imports of bananas.
Steatoda nobilis is strongly synanthropic and is most commonly found in and around domestic and commercial premises, including conservatories, public toilet blocks, garages and sheds….Natural history Museum