The Alverian dung beetle is an insect.
The exoskeletons of Alverian dung beetle synthesizes hyronalin from dung nutrients and so are eaten by Alverians to protect themselves from radiation from the planet's radioactive ores. (ST reference: Creatures)
During the preparation for the Ty'Gokor mission in 2373, Worf attempted to get Odo to react like a Klingon by insulting him, calling him an Alverian dung beetle. Odo responded by sarcastically saying Worf should get his eyes checked. (DS9 episode: "Apocalypse Rising")