I think the anal appendages are male... Yellow colour shows a youngster, if it IS a male.
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Simon, you are correct an immature male.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
I think it's too risky to say I'm getting the hang of this, but I'm improving, I think. So much to learn, and so few years to learn it in! :-)
Lat/Lng: 52.0798, -0.2919
OS grid ref: TL171437