There are two of them roaming around the Splitpaw spires in South Karana.
They are the placeholders for Tesch Val Kadvem and Tesch Val Deval'Nmak.
Spawn points:
-2680, 375 (NE of Infected Paw at a bunch of trees)
-3513, 216 (SE of Infected Paw)
Respawn time: 4m 54s