Garden: Matching Iridescence

Spot the colour-coordinated flying photobomber in large
Extra: All four

I didn't spot the fly until I uploaded the pics to Flickr!
Was hoping to get Kappa flapping (she has lost all of her primaries, so just has comical little short wings pro tem.), but she didn't flap at all while we had them out in the middle of the day...

Others here (or right from Kappa preening)