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The family Phylliidae (often misspelled Phyllidae) contains the extant true leaf insects or walking leaves, which include some of the most remarkable leaf mimics in the entire animal kingdom. They occur from South Asia through Southeast Asia to Australia. At present, there is no consensus as to the preferred classification of this group; some sources treat Phylliidae as a much larger taxon, containing the members of what are presently considered to be several different families.
Leaf insects use camouflage (also known as mimicry)to take on the appearance of a leaf. They do this so accurately that predators often aren't able to distinguish them from real leaves. In some species the edge of the leaf insect's body even has the appearance of bite marks. To further confuse predators, when the leaf insect walks, it rocks back and forth, to mimic a real leaf being blown by the wind.
The scholar Antonio Pigafetta probably was the first to document the creature. Sailing with Ferdinand Magellan's circumnavigational expedition, he studied and chronicled the fauna on the island of Cimbonbon as the fleet hauled ashore for repairs. During this time he documented the Phyllium species with the following passage:
A 47 million year old fossil of Eophyllium messelensis, a prehistoric ancestor of Phylliidae, displays many of the same characteristics of modern leaf insects, indicating that this family has changed little over time.
- Bradley, J.C.; Galil, B.S. (1977). "The taxonomic arrangement of the Phasmatodea with keys to the subfamilies and tribes". Proceedings of the Entomological Society of Washington 79 (2): 176–208.
- Hidden Beauty
- Bergreen, Laurence (2003). Over the Edge of the World: Magellan's Terrifying Circumnavigation of the Globe. William Morrow. ISBN 0-06-621173-5.
- Pigafetta, Antonio. "Anthony Pigapheta, Patrician of Vincenza, and King of Rhodes, to the very illustrious and very excellent Lord Philip de Villers Lisleaden, the famous Grand Master of Rhodes, his most respected Lord." Alderley, Lord Stanley of. The First Voyage Round the World, by Magellan. New York: Burt Franklin, n.d. 35-163.
- Wedmann, Sonja; Bradler, Sven; Rust, Jes (9 January 2007). "The first fossil leaf insect: 47 million years of specialized cryptic morphology and behavior". Proceedings of the National Academy of Sciences 104 (2): 565–9. doi:10.1073/pnas.0606937104. PMC 1766425. PMID 17197423. Retrieved 2007-01-15.
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