Did not know that.  That's important information to make that distinction.  I (obviously wrong) lumped the jellies and MoWs into one lunar occurrence every month.  Too bad the author of this article didn't point that out.  MoWs are there all the time, while the Box Jellies are a monthly occurrence after the full moon.

I got my info from Beat of Hawaii.  They are wrong too:

http://beatofhawaii.com/jellyfish-sting-warnings-for-your-hawaii-vacation/