Yes, I should have added another photo for context, not completely clear here. This is the dorsal surface of the left forewing folded against the abdomen, I believe, and we are looking through that to see some of the left hindwing.

The scale on-screen is going to vary with your monitor settings, specifically, the pitch, measured in pixels per inch, usually called "dots per inch". Since the antlion died, and I still have the specimen, I'll go back and measure some things visible in the detail shots. (The body length was 25 mm, so that will give you an idea.) The antennae are about 6 mm long, and the square cells in the wing are tiny--some quick on-screen measurements give about 0.7 millimeter across, I believe. On my screen, the magnification is on the order of 40X for this photo of the wing venation.

Again, I'll go back and make some careful measurements, since I have the specimen. I think I'll add a context shot as well.