Certainly a damselfly by the way it holds its wings at rest, but being from the otherside of the pond not one I've seen before, rather understated colours so it might be a teneral (i.e. newly hatched and not yet reached sexual maturity), thanks for sharing that one.
I failed to specify the lens details above, the shot was taken with a 105mm macro lens which is about optimum to just keep you outside the circle of comfort for the insect. Temperature has some part to play, the warmer it is the more flighty the insect, so early morning or late evening shots are likely to be more successful, at the start of the day the insect is cooler and at the end of the day it's flight instinct is beginning to subside as it seeks a resting place for the night.
As with so many subjects it can be a question of knowing your subject, hence my poor success rate with photographs of people, I just don't understand them.