Tasmanoplectron isolatum is a rare nocturnal species of cave cricket, and is the only species represented in the genus Tasmanoplectron, belonging to the family Rhaphidophoridae. In 1971, Aola M. Richards was first to describe this species in Tasmania, Australia, where its geographical distribution is restricted to. The genus is thought to have affinities with New Zealand fauna due to its marked differences from the other Australian Rhaphidophoridae.

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