Ahhh.. the memory.
Aeshna cyanea,  (Southern Aeshna) I believe, if my memory and observation skills are still acute.  Beautiful beast.
I have a painting of one on my wall, which I commissioned from a young school-lad artist 49 years ago.  It is a copy of the album cover of "The Strawbs"  http://en.wikipedia.org/wiki/Dragonfly_(Strawbs_album)#mediaviewer/File:Dragonfly_strawbs.jpg
Ian &amp; Sue x  Brisbane