The demon Vapula appears in the grimoires Book of Incantations, The Discoverie of Witchcraft, Pseudomonarchia Daemonum, and The Lesser Key of Solomon
From The Lesser Key of Solomon, Crowley/Mathers edition:
The Sixtieth Spirit is Vapula, or Naphula. He is a Duke Great, Mighty and Strong; appearing in the Form of a Lion with Gryphon's Wings. His Office is to make Men Knowing in all Handicrafts and Professions, also in Philosophy, and other sciences. He governeth 36 Legions of Spirits, and his Seal or Character is thus made, and thou shalt wear it as aforesaid, etc.