Hi bst freinds,
1.steal from mobs with sub thf (sub thf Lv25)
2.chocobo digging in Wajaom Woodlands (digging delay 0 sec, zoning delay 20 sec.)
3.harvesting in Grauberg (many chigoes hopping around harvesting points)

I tried these 1~3, but I could get chigoes by harvesting.
(maybe high skill players can do it by other two)
For about 30 min. to 1 hour, i got 1 dozen lesser chigoes.
Im be happy with you, thanks for tips ('ー')/