Rogue Galaxy Quarry: The Rumored Lady Hunter
The closest save point to teleport to is South Myna Station. From here you'll want to head west into the tunnels as seen in my picture. You'll find the circle for him in there. He's a super easy fight, no wonder he only picked on the ladies.
The item required to call forth The Rumored Ladyhunter is Magic Lipstick.
If you are missing the item required to summon this boss grind some battles and cross your fingers or go treasure chest hunting on a planet you've 100% the map on. In Rogue Galaxy once you pass a certain chapter the loot table of items that can drop for you ingame is updated.
What I mean is, every item has a chance of dropping off every creature after you've passed that chapter that allows that item to drop. At least this is how it works in my experience. Therefore, if you're missing any items to summon any of the quarry bosses all you need to do is grind a little until you get that item to drop for you. Good luck!