On the island map, they are easily found at large in chitin cave (volcano) and carno island cave, generally at higher levels (at the cost of higher risk). in chitin cave, use a spear or simple bow to aggro beetles which are near more dangerous creatures (onyx, arthropluera, etc) then lead it to the mouth of the cave where it can easily and safely be tamed, consider taming time required as small and human faeces will spoil much sooner than large, the difference in spoil timers being hours.

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