"Ant queens," says Lin, "usually live deep inside the nest." And queens, which lay the colony's eggs, flee as soon as the nest is invaded. Lin explains that to catch them, you must first stun the ants with gas, then dig up the whole nest.
「蟻后通常住在巢穴深處，」林宗岐解釋，一遇入侵者，蟻群往往快速逃竄，因此要先灌氣迷昏，再挖出整個蟻巢。