Small Whiskered Bat (Myotis diminutus)

This species was described in 2011 and was originally known only from the type, a subadult individual that had been collected in 1979 in a fragment of moist forest on the western slopes of the Ecuadorian Andes.

A second specimen, discovered some years later in a museum collection was collected in 1959 at La Guayacana in western Colombia. 

The Small Whiskered Bat apparently is/was restricted to the so-called Chocó ecoregion, lowland forest areas that now are mostly deforested, and is probably extinct. [1]

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References:

[1] Ricardo Moratelli; Don E. Wilson: A second record of Myotis diminutus (Chiroptera: Vespertilionidae): its bearing on the taxonomy of the species and discrimination from M. nigricans. Proceedings of the Biological Society of Washington 127(4): 533-543. 2015

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edited: 13.01.2019