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Here are a couple of images of a Small Skipper butterfly. The first was photographed with the sun behind me;
The second was photographed into the sun and hence backlit;
Finally, a Ringlet butterfly;
It's worth pointing out that sometimes you have to treat the presence of water droplets on an insect with a degree of scepticism as some photographers will on occasion spray droplets onto their subjects to give them a dew-covered look. I've even heard some photographers query whether you ever actually find naturally dew-covered insects. I hope these images illustrate that in the right conditions you can find insects naturally covered in fine water droplets.
Over the next week or two I will post some images of other insects that were even more heavily dew laden, including damselflies and a dragonfly. [EDIT: here are those images]
As an aside, I decided to repeat the exercise only a few days later and returned to the same site at a similar time but found that there was no dew at all. I'm no meteorologist but I assume the overnight temperatures were too high, combined with a slight breeze. My heart sank as I was greeted by the sight of Emerald Damselflies on the wing at 5:30 in the morning, something I have never seen before, signalling that my early start had been in vain.