Sorry about the quality of the photo. It was so thin I had difficulty focusing on it.
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I can't see any sign of any blue on this one - it's a female Common Blue Damselfly, but of the "drab", or brown, form.
Looks blue to me...
Hampshire Dragonfly recorder
Hampshire & IOW Wildlfe Trust
It's not the best of pictures but it was definitely a shade of light blue in the field.
My blog: http://wolvobirder.blogspot.com
Lat/Lng: 52.4985, -2.2411
OS grid ref: SO837889