Agateraptor: In Peterson’s translation of the Grimorium Verum, Agateraptor is listed as one of three demons who work as chiefs of Belzebuth, a variation on the name Beelzebub. In the True Keys of Solomon, this demon appears under the spelling Agatraptor. Along with his cohorts, Himacth and Stephanate, he is also said to serve the demon Beelzebub.

Source : Dictionary of Demons by Michelle Belanger