Hive'Regal Spitfires are insects that live in the southern Regal hive in Silithus. They have a ranged, nature based attack that reduces armor and stacks, but is interruptable. Although they use it very often, the duration is short, so if you can interrupt every other attack, it shouldn't stack too high. They are fairly common, and are easily found around the perimeter of the hive. Part of a Field Duty Combat Quest.