Catamenia is a melodic black metal band from Finland, founded in 1995 by original members Riku Hopeakoski and Mika Tönning in Oulu. They have been signed to Massacre Records ever since their first full-length, Halls of Frozen North in 1998. As of 2010, they have released nine albums, 1 EP, and one DVD. They are known to frequently use wolves in their album art. Catamenia means "Menstruation". The band didn't know about this until a fan pointed it out to them after the release of their debut album. Catamenia is also a kind of bird.