One of Britain’s largest species of beetle has been found in Dorset for the first time in more than 200 years.

A Bournemouth University student discovered two great silver water beetles while surveying animal and plant life in the Blackmore Vale as part of his master’s degree.

Wren Franklin checked his discovery with the county’s recorder for beetles, who confirmed the last recorded sighting of them was in 1821 by influential entomologist JC Dale.