[Community] Ischnura elegans with no antehumeral stripes?

[bernhard_renaud at bluewin.ch]

Hello,

This Spring I came across a couple of Ischnura elegans males, near Geneva, with strange thorax coloring, one had tiny 
dots instead of the usual antehumeral stripes, and that one on picture 7331 (on www.asia-dragonfly.net with no 
antehumeral stripes at all(!).

That is the first time I witness this. Is anyone esle aware of such dranatic thorax coloring in that species?

Best Regards,
Renaud BERNHARD,
Switzerland