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Madagascar "mega-moth" (Madagascar AFRICA): When Charles Darwin discovered a species of flower with an exceptionally deep corolla, he hypothesised that a species of hawk moth would be discovered with a proboscis long enough to reach the nectar, and thus pollinate the plant. such a moth was indeed discovered. Many years later, a very rare flower with an even deeper corolla was discovered, and once again a moth was hypothised, this one needing a proboscis somewhere between 14 and 18 inches long. Such a moth has yet to be found. and it may even be extinct as the flower hasn't been seen since.