Author 'Francis-Sisco' (Id 209896 ) : Odonate blue-gray with the tip of the abdomen blackish in the males and without any black spot in the wings. Attention: not to be confused with Orthetrum coerulescens (Orthétrum bleuissant) or Orthetrum brunneum (Orthétrum brown).
From my side I am not sure of the identification Lien : Http://fr.wikipedia.org/wiki/Orthetrum_cancellatum