Patrolling river, seeing off other O. coerulescens (of which there were quite a few) but ignoring Broad Scarlets.
No interactions present.
Hi Bruce, as I have said before I'm not that conversant with continental Odonata but the thorax on these is blue, our Keeled have brown thorax's (I should say the Keeled I see). Could this be a Southern Skimmer or are continental Keeled slightly different ?
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
What clinched it for me are
1. The size of the pterostigmas (Keeled are large, and Southern "relatively small")
2. The fairly small overall size
3. The comment in Dijkstra about Keeled "Southern males tend to be more densely and extensively pruinose and may seem totally blue".
So I guess your thoughts about regional variation are correct (doesn't mean my ID is though!)
As I said my knowledge of continental species is limited so you may well be right, Roy W should know if he picks this up. Regards Chris.
In southern Europe Keeled Skimmers regularly become entirely blue, with the pruinescence covering the whole of the thorax as well as the abdomen (Black-tailed Skimmers can also become blue on the thorax).
It may be that these species have a tendency to become more extensively blue as they age, and that the better weather in southern Europe means that more long enough for the pruinescence to become this extensive - or that more of the blue pruinesecnce is secreted in sunnier conditions by mature individuals, regardless of age.
The weather in S France has been particularly warm and dry for the past 2 months. There were quite a lot of these Keeled Skimmers, all looking similarly pruinose, flying around seeing each other off.
Lat/Lng: 42.5355, 2.8574