Chōmei (Ten Tailed Fox)

The Seven-Tailed Horned Beetle (七尾のカブトムシ, Nanabi no Kabutomushi) is a tailed beast that was formerly sealed within Fū from Takigakure. It has been captured, extracted, and sealed by Akatsuki. It's current status is unknown.

Background
According to Madara Uchiha, the Seven-Tails first came into being in the waning days of the Sage of the Six Paths' life; to prevent its resurgence, the Sage split up the chakra of the Ten-Tailed Beast into nine separate, monstrous constructs of living chakra, which would become known as the tailed beasts. The Seven-Tails eventually fell into the possession of Takigakure and was sealed into Fū, but was captured and extracted by Akatsuki.

Appearance
The Seven-Tails resembles a blue, armored kabutomushi, with six of its seven tails resembling green insect wings, along with the seventh tail, all growing from the end of its abdomen.