Hoverfly

Syrphid. Chrysotoxum is a genus of hoverfly.
Hard to distinguish between some very similar species, so we call it Chrysotoxum sp.

In the photo, a male from Chrysotoxum sp., a completely harmless fly despite its appearance, a clear example of Batesian mimicry, where a harmless species mimics in appearance and often in behavior a dangerous species, in this case a wasp.

A curious fact: the wasps, when they perch, fold the wings lengthwise, so it gives the impression that they have very narrow wings. The Chrysotoxum fly has much wider wings and cannot fold them. To try to disguise this detail that could cause predators to quickly learn to distinguish the true wasps from the harmless imitators, Chrysotoxum shows on their wings a brown band in the wing border that coincides precisely with the length, width and color of the narrow wings of the wasps, and the rest of the wing is transparent to ' make it invisible '.