Pleiadian

Plejarens, a German dialect for Pleiadians, are aryan Anunnaki who made contact with Billy Meier in 1942, Switzerland.

Demonology
Erra is a Plejaren President, appearing in the Form of a Mighty Bull with Gryphon’s Wings at first appearance to the Exorcist, before he puts on human shape. His Office is to make Men wise, and to instruct them in diverse things. He is a Master of Alchemy; and changes Wine into Water.

Erra's appearance as a Mighty Bull is symbolic of Lordship, commonly reflected in Sumerian culture. The Sumerians revered the seven star cluster Pleiades. The star cluster is rich in the mythology of many human cultures, even in Mesoamerica. The spirit of Erra promotes "sex cultivation" rituals. The ancients believed that through certain sex rites they could obtain a "higher spiritual state". This is familiar in Lingam and Yoni practice of Hindusim.

Erra is also a chaos demon. He turns wine into water to moch Jesus Christ in the assembly of Christians.

Erra, who is also Haagenti, governs 33 Legions of Plejarens.

Ufology
Plejarens are tall humanoids who stand 1.8 to 4.2 meters in height. They reportedly have a robust Aryan physique, having blue eyes and long blond hair and they communicate telepathiclly. If cases such as that of contactee Elizabeth Klarer are of any indication, they also seem to be genetically-compatible with Humans.

Plejarens convey themselves as generally being peaceful and to be concerned with the welfare of Earth. Contactees often claim that Plejarens are interested in the future of our planet from an ecological and sociological perspective, transmitting messages about environmental sustainability and the prospect of world peace. Members of this group have also been described as paternal, wise, spiritual, and jovial.

Billy Meier
Swiss contactee Billy Meier has claimed to have had hundreds of contacts with "Plejarens" ever since he was 11 years old, in 1942. According to his experiences, the aliens' homeworld is located in the Pleiades star cluster and is named Erra: a world smaller than Earth and scarcely populated in comparison, with only half a billion souls. Their average lifespan is 1000 years, and they're said to be genetically-related to Earthlings, as both races descend from the primordial Lyrans. As in most other cases, Meier's Plejarens also behave as spiritual teachers, hoping to guide humanity towards a peaceful path of growth.