Photoshoped pic: [link]
Moc Page: [link]
NATIVE TO: Kacia
ENVIRONMENT: Caves, tunels, dark places
CREATOR: Makuta Kudarax
CONSERVATION STATUS: Widespread
ABILITIES: Night vision, strength, poisonous sting
MOC STATUS: Assembled
The name Onu-Jaga means literally "earth scorpion" in Matoran language, as Nui-Jaga means "great scorpion".
I know it's very simple and doesn't have too much customs.