Wilson Lourenco and Andrea Rossi have recently published an article with a new replacement name for Butheolus pallidus Lourenço & Duhem, 2012 (Buthidae). The reason for this is that it has been discovered that this name is preoccupied by Butheolus pallidus Pocock, 1897 (currently under the genus Orthochirus Karsch, 1891).
The new name for this species from Oman and United Arab Emirates is Butheolus hallani Lourenço & Rossi, 2017. [Author information corrected 17.08.17]
A nomen novum is proposed for Butheolus pallidus Lourenço et Duhem, 2012, a primary junior homonym of Butheolus pallidus Pocock, 1897 (currently Orthochirus pallidus).
Lourenco WR, Rossi A. A new substitute name for Butheolus pallidus Lourenço et Duhem, 2012 (Scorpiones, Buthidae), species described from United Arab Emirates/Oman. Arachnida - Rivista Aracnologica Italiana. 2017;3(13):42-4.
Thanks to Joel Hallan for sending me this article!