Keeled Skimmer  -  Beekoeverlibel   Orthetrum coerulescens   male; digital picture.
Rode Beek, Brunssummerheide, Brunssum Li, The Netherlands, 27 July 2004.

Keeled Skimmer  -  Beekoeverlibel   Orthetrum coerulescens   female; digital picture (see below for a detail of this picture).
Rode Beek, Brunssummerheide, Brunssum Li, The Netherlands, 31 July 2004.