Sunlight glints on the wings of this resting hover fly of the Family Syrphidae (probably Syrphus opinator).
Hover flies are found all over the world. They are also known as flower flies because as adults they often feed on nectar and pollen. The larvae of some species feed on decaying plant matter and others feed on aphids. They are efficient as aphid biocontrol agents and are minor pollinators of flowers.
Many species look remarkably like wasps and bees and may even buzz like bees, but do not bite or sting.