Today’s one word prompt on The Daily Post is Micro.
These are scales on the forewing of a Magpie Moth. You can see the edge of the forewing and a small section of the hindwing on the right edge of the photo.
There are several moth species with the common English name of Magpie Moth, this is the species found in Europe and North America.
I’ve added a photo of the moth for anyone interested.