Hoverfly (Helophilus pendulus)
This is a common and very widespread species found all over the United Kingdom. Its larvae have been found in farmyard drains, very wet manure and very wet old sawdust (who on earth looks at these sorts of things?) and so is a very versatile and adaptable little creature.
Whilst having a passion for shallow ponds, puddles and ditches it can be found well away from water and as well as having a liking for flowers it can also be found sat on leaves basking in the sunshine (when we get some). In our garden pond they often sit on the water lily pads for long periods, occasionally strecthing their wings with a short flight and then returning to the same spot