First record of Lasiurus (Aeorestes) villosissimus (É. Geoffroy St.-Hilaire, 1806) (Chiroptera, Vespertilionidae) in San Juan province, Argentina

Abstract

We report the first record of Lasiurus villosissimus (É. Geoffroy & St.-Hilaire, 1806) in San Juan prov-ince, Argentina. A male, determined as a juvenile by its degree of ossification of the epiphyses of the phalanges and the color and texture of the fur, was found on 31 August 2021 in a suburban area 2.44 km south of the city of San Juan. This new report increases the richness of bat species in the province and expands the distribution of this spe-cies towards the west of the country.