My mentor told me to put #8 screen over the top entrance of my hives. The idea being that the bees (newer colony from a split this year) would only need to protect one entrance this way. Also he said Bee Moths like to enter from the top of the hive. When inspecting the hive, I found a bee moth resting upside down on the cover, between the cover and the screened inner cover. I didnt see any eggs, I looked everywhere (after killing the moth). Is this normal to see before a disaster (like the mothman? ) or is it possible the screened inner cover saved an infestation?