uncommon n small air earth elemental 

Perception +3; darkvision

Languages Auran, Terran

Skills Acrobatics +7, Stealth +7

Str +1 Dex +4 Con +1 Int -2 Wis +0 Cha -1

AC  17; Fort +6, Ref +9, Will +5

HP 16, fast healing 2 (in dust or sand); Immunities bleed, poison, paralyzed, sleep

Speed 20 feet, fly 35 feet

Melee [>] claw +9 (agile, finesse), Damage 1d6+1 slashing

Arcane Innate Spells DC 17; 2nd glitterdust

Breath Weapon [>>] (air, arcane, earth) The dust mephit breathes a cloud of dust in a 15-foot cone that deals 2d6 slashing damage to each creature within the area (DC 17 basic Reflex save). The dust mephit can't use Breath Weapon again for 1d4 rounds.

Bestiary 2, page 112. Expanded in LOIL.