Владыка Трутней Кк'Зтрт

Seems like this mob only appears in the Kaaz'Gfuu hive. To find him, go inside until the big underground (see my screenshot). You can use invisibility and stun (doesn't work on gnars and bugs), but anyway, the drone is surrounded by three elite 62 lvl, and one patrols no far. Good luck!

Found at 3617 3017, way the holl down inside the hive