In demonology, Amdukias (alternative spellings include Ambduscias, Amduscias and Amdusias) is a demon who has thirty legions of demons under his command (29 according to other authors) and has the rank of Great Duke. Amdukias is associated with thunder and it has been said that his voice is heard during storms. In other sources, all types of musical instruments can be heard but not seen when he appears.