The latest information on the Asian Hornet please read the following link:
An Asian hornet sighting was confirmed in the Tamworth area of Staffordshire on 2 September 2019. This is the first report since July, when a single hornet was confirmed in New Milton, Hampshire. In each case they were spotted and reported by a member of the public.
Further information can be found on the following link.: https://www.gov.uk/government/news/asian-hornet-uk-sightings-in-2018?fbclid=IwAR1qP9Jlic5lu5uIWmo0pmp09_V57TcbcGkqzQWyUQ1kilmLmI-ciczJDM8
If you discover one please follow the protocol in the link above to report it.