Gonimbrasia belina is a species of emperor moth which is native to the warmer parts of southern Africa. Its large edible caterpillar, known as the mopane worm, madora, amacimbi, pigeon moth or masonja, feeds primarily but not exclusively on mopane tree leaves. Mopane worms are an important source of protein for many in the region. The species was first scientifically described by John O. Westwood in 1849.

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