I just pulled my screen bottom board that I had on for few days to do a mite count. It is hard for me to tell what is what. Do the Varroa look like little square black things? I have some of those and then looks like lots of pollen dust. If someone would be so kind to post a picture. I googled varroa but the pictures looks super magnified. If you could describe them or show me a link to a picture with them that would be great. Thank you in advance!