Centipaar Insect Parts

Centipaar Insect Parts dropped from the following silithid in Tanaris:
 * Centipaar Sandreaver
 * Centipaar Swarmer
 * Centipaar Wasp
 * Centipaar Stinger
 * Centipaar Tunneler
 * Centipaar Worker

As a quest objective

 * Noxious Lair Investigation