مقياس القاذفة، جندي الخنافس

If an Insect monster(s) is Normal or Special Summoned to your field (except during the Damage Step): You can Special Summon this card from your hand. When a monster your opponent controls activates its effect (Quick Effect): You can Tribute 1 Insect monster; destroy it. You can only use each effect of "Beetrooper Scale Bomber" once per turn.