Steatoda nobilis query

Steatoda nobilis query

Observation - Steatoda nobilis query. Description: Noticed this small dark spider sitting on the plughole filter of our shower. Its body and head are about 6-7mm. Could it be a False Widow Spider? A few days ago we returned from Tenerife - could it have crept into our luggage and got out? If it is this sp

Noticed this small dark spider sitting on the plughole filter of our shower. Its body and head are about 6-7mm. Could it be a False Widow Spider? A few days ago we returned from Tenerife - could it have crept into our luggage and got out? If it is this species, should I kill it as an invasive species, or let it go as there appear to be many in the UK now?