From page 284 of volume 2, part 1 of the mentioned book:

Unfortunately, there's not a lot in there.

A quick and rough translation (sorry in case I missed any unique English name used for these):

Iudaios (Ioudaios), 1) Son of Typhon, brother of Hierosolymos, after which the Jews are named, Plut. Is. et Osir. 31. -- 2) One of the Spartans, otherwise called Udaios (q. v.) and said to have given Judea its name (Steph. Byz. q. v. Ioudaia); q.v. Meineke spelling him Oudaios. [Höfer]

So I don't think he's actually supposed to be a god (based on this text). I couldn't find any real reference to "Hierosolymos", but this might actually be "Hierosolymus" as well. Not that I'd have any more luck with that, but maybe this could help someone else who's more versed regarding Greek mythology. Also note that there's actually a Wikipedia entry on the alternative spelling "Ioudaios".

From page 284 of volume 2, part 1 of the mentioned book:

Unfortunately, there's not a lot in there.

A quick and rough translation (sorry in case I missed any unique English name used for these):

Iudaios (Ioudaios), 1) Son of Typhon, brother of Hierosolymos, after which the Jews are named, Plut. Is. et Osir. 31. -- 2) One of the Spartoi, otherwise called Udaios (q. v.) and said to have given Judea its name (Steph. Byz. q. v. Ioudaia); q.v. Meineke spelling him Oudaios. [Höfer]

So I don't think he's actually supposed to be a god (based on this text). I couldn't find any real reference to "Hierosolymos", but this might actually be "Hierosolymus" as well. Not that I'd have any more luck with that, but maybe this could help someone else who's more versed regarding Greek mythology. Also note that there's actually a Wikipedia entry on the alternative spelling "Ioudaios".