Zootaxa 3878 (1): 019–036 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2014 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3878.1.2 http://zoobank.org/urn:lsid:zoobank.org:pub:FDE7F7A4-7DCC-4155-8D96-A0539229DBFE A new species of Eumops (Chiroptera: Molossidae) from southwestern Peru CÉSAR E. MEDINA1, RENATO GREGORIN2, HORACIO ZEBALLOS1,3, HUGO T. ZAMORA1 & LIGIANE M. MORAS4 1Museo de Historia Natural de la Universidad Nacional San Agustín (MUSA). Av. Alcides Carrión s/n. Arequipa, Perú. E-mail:
[email protected] 2Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais, CEP 37200-000, Brazil. E-mail:
[email protected] 3Instituto de Ciencias de la Naturaleza, Territorio y Energías Renovables, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, San Miguel, Lima 32, Perú. E-mail:
[email protected] 4Departamento de Zoologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. E-mail:
[email protected] Abstract The genus Eumops is the most diverse genera of molossid bats in the Neotropics. In Peru this genus is widely distributed and represented by nine species: E. auripendulus, E. delticus, E. hansae, E. maurus, E. nanus, E. patagonicus, E. perotis, E. trumbulli, and E. wilsoni. After several years of mammalian diversity surveys in the coastal desert and western slopes of southwestern Peru, a specimen of Eumops was collected whose unique set of traits allows us to assert that deserves to be described as a new species. Based on molecular and morphological evidence, the new species is related to medium- large sized species (i.e.