Chestnut-brown Bembidion Ground Beetle (Bembidion platyderoides)  

The Chestnut-brown Bembidion Ground Beetle was described in 1877.  

The author of the species already mentions its rarity.:  

“The unique example of the very singular Bembidium which I have above enunciated was taken by myself from the interior of the fibrous stem of a rotten tree fern [Dicksonia arborescens L’Hér.] obtained near Diana’s Peak on the lofty central ridge; and there can be no doubt that the species which it represents is of the utmost rarity.” [1]  

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The Chestnut-brown Bembidion Ground Beetle reaches a length of about 0,45 cm.  

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The species was not found during the most recent field searches and is thus feared to be extinct. [2]  

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References:  

[1] T. V. Wollaston: Coleoptera Sanctae-Helenae. London: John Van Voorst, Paternoster Row 1877 
[2] H. Mendel; P. Ashmole; M. Ashmole: Invertebrates of the Central Peaks and Peak Dale, St Helena. 2008  

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edited: 30.05.2021