


I'm usually pretty good with insects, but I really don't know what this specimen is. They are very common here in the Pacific Northwest, about the size of a mosquito, and you can even find them in winter if there are a few "warm" days. Very weak flyers, but they obviously are well "tuned in" to something!
Top shot taken with Olympus 2X PlanF, bottom with Nikon 10X Plan. Lighting for both was "normal" darkfield. The very fine antenna elements caused a colorful diffraction of the light, more visible in the first image.