title: Agabus brunneus
text: # Agabus brunneus
  
  Agabus brunneus, the brown diving beetle, is a species of water beetle in the family Dytiscidae.
  
  ## Description
  
  Adult beetles are 9 millimetres (0.35 in) in length.
  
  ## Distribution
  
  The species lives in streams, mainly in Portreath (Portreath Stream), New Forest, and Dorset (in River Frome).
  
  