Dweebit
From Wookieepedia, the Star Wars wiki.
The dweebit was a small reddish-brown beetle native to the Yuuzhan Vong galaxy, and brought into the galaxy by Yomin Carr. They were put onto Belkadan, where they emitted extremely noxious fumes, converting the atmosphere to a mix of carbon dioxide, methane, and sulfur, killing or mutating all wildlife on the planet.
Yomin Carr considered these dweebits as his pets.
It is unknown what became of the dweebits after the war ended; though it can be assumed they were transplanted on Zonama Sekot and were made benign by the Shapers.
