Found the block of text and I could not find any information on the type of demon. It seems that there is not much to be found in a language I understand, but many Jewish text are not translated. You could ask one of the authors if any are still around the community (David Honigsberg, Adam Bank, and Jeremiah Genest).
For anyone interested in the general caste of Jewish "Mazzik" demons covered in that section (rather than the ones Timothy asked about), a resent movie named ‘The Vigil’ might be of interest. It was written and directed by a Jewish man who wrote their Master thesis on Jewish Monsters, stars Jewish actors, was filmed in haredi neighborhoods in Borough Park and Williamsburg, and set up real Orthodox rabbis around the perimeter of the set to explain the movie to passersby.