You know that clattering sound you're always hearing in the Searing Gorge and Burning Steppes? It's coming either from a https://vanillawowdb.com/?npc=9700"">(NPC #9700) or one of these things, with the fire beetle being the slower of the two.

Part of the new achievement Pest Control. Kill it for credit =D

Here's the jist on this guy.
Another critter needed for the achievement added in 3.08 Pest Control (at the time of this post, it's not in database).
An easy way to find this guy is to fly to Thorium Point, then head towards Blackrock Mountain spamming your /target macro. While you're at it, you can check the nearby lava pools for https://vanillawowdb.com/?npc=9700 Lava Crab s to /love for the achievement To All The Squirrels Who Shared My Life.

Helpful macro for the achievement:

• /tar https://vanillawowdb.com/?npc=3300 Adder
• /tar https://vanillawowdb.com/?npc=24270 Devouring Maggot
• /tar https://vanillawowdb.com/?npc=24174 Fjord Rat
• /tar https://vanillawowdb.com/?npc=16068 Larva
• /tar https://vanillawowdb.com/?npc=4953 Moccasin
• /tar https://vanillawowdb.com/?npc=4075 Rat
• /tar https://vanillawowdb.com/?npc=15476 Scorpion
• /tar https://vanillawowdb.com/?npc=14881 Spider
• /tar https://vanillawowdb.com/?npc=28202 Zul'Drak Rat
• /tar https://vanillawowdb.com/?npc=32261 Crystal Spider
• /tar https://vanillawowdb.com/?npc=9699 Fire Beetle
• /tar https://vanillawowdb.com/?npc=32258 Gold Beetle
• /tar https://vanillawowdb.com/?npc=16030 Maggot
• /tar https://vanillawowdb.com/?npc=6271 Mouse
• /tar https://vanillawowdb.com/?npc=4076 Roach
• /tar https://vanillawowdb.com/?npc=2914 Snake
• /tar https://vanillawowdb.com/?npc=32428 Underbelly Rat

Helpful macro for finding the Larva:
/tar Larva
/stopmacro [noexists]
/tell (YourCharacterName) > %t <

Remember to replace YourCharacterName with, well Your Character's Name.

Going to repost this on the others.

An interesting, though totally useless, anecdote: whilst desperately hunting these in Burning Steppes, I grew weary and began to despair the possibility of ever finding one. They were just too small and too sparse to see. Then I glimpsed an https://vanillawowdb.com/?npc=9690 Ember Worg running off into the distance and biting something. Sure enough, on closer inspection, it was a Fire Beetle. Feeling a bit necrophillic, I /loved it, for the achievement.

Afterwards I emoted the Worg too, out of sheer gratitude.

Then I realised I'd been tracking the wrong achievement lists for the last half hour - /loving pests instead of critters. And I /cried.