Lange’s Metalmark, Monarchs and the mysterious Christmas Island Swell Moths - although these butterflies and moths looks almost the same with their bright orange wings, they are treated and viewed very differently because of the situations they find themselves in.
Every monsoon season on Christmas Island, thousands of Swell Moths crowd around the Berrya cordifolia tree. It is a spectacle that lasts only for a day or two. Little is known about this spectacle. Christmas Island is also home to other more charismatic species so little attention is paid to these moths. Every monsoon season, millions of red crabs swarm to the beach of the island, covering the island in a great red splash. These Swell Moths feed exclusively on the tree Berrya cordifolia. The tree and the moth are found only in Sri Lanka, India and Christmas Island. It is hard to say if the tree and the moths are native or introduced to Christmas Island.
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