Sirian Group

In "The Prism of Lyra" the term 'Sirian Group' is used to refer to "a group of extraterrestrials (not necessarily all from Sirius) who were instrumental in the inception of Earth and the Development of the Human Race." (Lyssa Royal & Keith Priest, The Prism of Lyra)

In the Prism of Lyra, Royal refers to two main groups who are responsible for creating homo sapiens by manipulating / modifying the DNA of existing humanoids. The two groups are the Lyran Group and the Sirian Group.