Collect of the reaction to a bite from a False Widow spider on the inner thigh of Ella Williamson, 3. See SWNS story SWWIDOW; A three-year-old girl spent three days in hospital and was unable to walk – after being bitten by a FALSE WIDOW SPIDER. Toddler Ella Williamson suffered for days after she was attacked by Britains most venomous arachnid, leaving an eight-inch-wide blister. Her distraught mum Bobbie-Louise Willis, 24, was forced to take the youngster to a skin specialist when the nasty bite mark tripled in size over two days. Bobbie-Louise spoke out yesterday (Weds) as experts warned the weather was ripe for a “population boom” of the creepy crawlies.