The Gold Beetle is north of the Elderly Entomophile in Arenafront Wharf, Port Brilehaven, between two crates. The Gold Beetle is next to some crates to the left of the Calm Ferryman in the west ...
To prevent them from entering your house, look for spaces and cracks on the outside that would allow the bugs to enter. Seal them with caulk, polyurethane spray foam, steel wool, or copper mesh.