Luminous Ground Beetle (Trechus luculentus ssp. luculentus)
The Luminous Ground Beetle, described in 1962, is apparently restricted to its type locality, Clingmans Dome in Swain County, North Carolina, USA. [1]
The species, respectively this nominate form of it, is considered likely extinct.
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References:
[1] Thomas C. Barr Jr.: Revision of Appalachian Trechus (Coleoptera: Carabidae). Brimleyana 2: 29-75. 1979
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edited: 07.09.2020