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It's got that midline mark on the sternum which only T. extensa and pinicola have?
latest pics and diptera videos
But it is still tricky to go beyond genus ?
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
yep, a shame there's no pic of the other side, abdomen dorsum of pinicola has a silvery "sheet with very fine reticulations", but that's still only an approximation. amazing how, as with slugs, juveniles and sub-adults look simply like small or tiny versions of a huge adult, so size is no help. (I couldn't even get genus agreement on mine and it's about as big as T. gets)
Lat/Lng: 51.2, -1.0
OS grid ref: SU7451