: r/awwnverts. Im not sure about oranges, but lots of sites recommend fruits with lower water levels, such as apples and bananas. These beetles cant survive outside in different climates and when they can, can be very destructive to native fauna and flora. Especially wood that has white rot, a fungus that attacks decaying wood, is perfect for raising stag beetle larvae. You can see a visible white or yellow color spot through the abdomen. Their common, English name is derived from the shape of their mandibles, which resemble the antlers of a stag. Do not disturb your beetles during this period. Tree barks should also be removed so that the beetles can easily chew through the wood for oviposition.