Steve, welcome to the forums! Go to www.bushfarms.com
, Michael Bush is one of our forum members on beemaster and his personal website has a plethera of information for the newbie as well as for the advanced beekeeper. He has a section on there on requeening a hot hive, which also helps you isolate the queen. It will help you with your hives. Finding queens is not always an easy task, so don't feel bad. As you will see by different responses, your wax moth hive had a problem before it had wax moth. You may have injured her, or the hive could have swarmed, but not entirely, leaving behind much less numbers to evade wax moth, hence them taking over. Who knows for sure, that's beekeeping, anyway, good to see you here.