I have had leaf miners in this past and this looks different.
its like a white powder on the leaf that almost looks like it has been "drawn on" - and as you can see in the picture, it opens up in ever widening circles. The pattern always looks exactly the same any time I see it.
I find it now and then on the underside of leaves of various plants I am growing. The picture is a leaf from a hot pepper plant.
Have also found it on tomatillo leaves.
