I will be taking a cd case and cutting two sides off of it. I will insert double sided tape on both sides of the inside of the case and apply Coral dust to the tape. I will then attach the case vertically on one side at the back corner of the hive with an open side of the case pointing down. The beetles can enter the case from the top or bottom as they climb the wall. The fact that it is hanging vertically will allow the dying beetles to fall out thus preventing the trap from becoming clogged. The case is to prevent the bees from removing the insecticide. There will be a minor exposure to cumaphos as the bees remove the dying or dead beetles so this approach couldn't be used with supers on but I will be using it primarily in nuc boxes and splits. It should keep killing w/o needing to be reloaded for a lengthy period of time but the bees might propylize the ends of the case. Such a configuration would work laying horizontally as well but might become clogged with beetles. I've also considered cutting a slit in the back of my bottom board through which a horizontal trap could be emptied w/o having to pull the hive apart or disturb the entrance. I'll update you on my findings as beetle season is starting to ramp up in our area.