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Dryococelus australis, also known as the Lord Howe Island stick insect, Lord Howe Island phasmid or, locally, as the tree lobster, [2] is a species of stick insect that lives in the Lord Howe Island Group. It is the only member of the monotypic genus Dryococelus. Thought to be extinct by 1920, it was rediscovered in 2001. [3]
One Australian species, the Lord Howe Island stick insect, is now listed as critically endangered. It was believed extinct until its rediscovery on the rock known as Ball's Pyramid. [53] An effort is underway in Australia to rear this species in captivity. The best known of the stick insects is the Indian or laboratory stick insect (Carausius ...
When black rats invaded Lord Howe Island after the 1918 wreck of the steamship Makambo, they wiped out numerous native species. DNA confirms amazing Australian isle insect not extinct after all ...
The Lord Howe Island Group of islands comprises 28 islands, islets, and rocks. Apart from Lord Howe Island itself, the most notable of these is the pointed rocky islet Balls Pyramid, a 551 m-high (1,808 ft) eroded volcano about 23 km (14 mi) to the southeast, which is uninhabited by humans but bird-colonised. [124]
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As they had hoped, they discovered a population of the Lord Howe Island stick insect living in an area of 6 by 30 metres (20 by 100 ft), at a height of 100 metres (330 ft) above the shoreline, under a single M. howeana shrub. The population was extremely small, with only 24 individuals.
The group of volcanic islands and islets about 570 km (350 mi) off the mainland is rich in biodiversity and home to several endemic species, such as the Lord Howe woodhen. The Lord Howe Island phasmid, the largest stick insect, was thought to be extinct but was recently rediscovered in 2001 on the islet of Ball's Pyramid (pictured). [11]
The Lord Howe Island stick insect: Dryococelus australis Bulkier members of the Phasmatodea (stick & leaf insects) in general Whip scorpion/vinegaroon: Uropygi