1Scientists working in a remote mountain valley have announced the discovery of a completely new species of butterfly.
2The insect, which has bright blue wings with silver spots, was found during a research trip last summer.
3The team spent six weeks walking through the forest and recording every butterfly they could find.
4At first, they believed it was a common species, but closer study in the laboratory revealed important differences.
5The butterfly feeds on a single type of flower that grows only in that particular valley.
6Because its habitat is so small, the researchers fear the species may already be in danger.
7They have asked the government to protect the valley from farming and new road building.
8The discovery shows how much of the natural world still remains completely unknown to modern science.
9The team plans to return next year to learn more about the butterfly's life cycle.
10Their full report, with photographs and maps, will be published in a leading international scientific journal later this autumn.