Hah, for once, a benefit of having celiac, no wheat for me apparently means no weevils for me. I mix up a lot of gluten-free flour mix to substitute for all-purpose flour. It's a mix of way too many flours and starches (white rice, brown rice, sweet rice, potato starch, potato flour, ivory teff, tapioca starch, arrowroot flour) that I got from a blog many years ago, and haven't tried to slim down because it works great for me. Never had any bug issues; maybe specialty flours have better quality control.