Satanic Ground Beetle (Trechus satanicus)
The Satanic Ground Beetle was described in 1962, it was apparently restricted to a place named Graveyard Fields in Haywood County, North Carolina, USA.
The beetle reached a size of about 0,36 cm in length.
The species 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