This has proven to be the hardest part of getting Maat's Cap. 4 Hours of stealing (tried all mobs listed that it can be stolen from). Just plain stupid.
Tonberry Shadower is safest bet on these. Enter the Temple and stick to right wall till you back in Yhoater jungle. In a room on the right side you will find one. Steal and Flee back to zone. Safest way I've found so far. Good luck!!!
why steal and flee back to the zone i find stealing then hide works well. stealing these sucks btw i fail steal alot on tonberry shadowers. so far i didnt want to go through the temple so i just sat below the broken steps and shot at the one that was up there till he came down (be careful tho he can aggro you from up there even if your below)