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We characterize the bat fauna of forested sites in the municipality of Domingos Martins, Espírito Santo state, southeastern Brazil, and update the list of bat species of the state. We conducted a rapid inventory using ground-level mist nets (27,000 m²·h effort) and occasional roost searching, which resulted in a list of 23 species belonging to Phyllostomidae (18 species), Vespertilionidae (3), and Molossidae (2). We report the first record of Molossops neglectus Williams & Genoways, 1980 and Myotis lavali Moratelli, Peracchi, Dias & Oliveira, 2011 from Espírito Santo, bringing the total number of confirmed species in the state to 86. The molossid Nyctinomops laticaudatus (É. Geoffroy, 1805) was exclusively recorded in its diurnal roost in rocky outcrops. Our study fills knowledge gaps in the distribution of bat species in southeastern Brazil, and more specifically in the highly diverse coastal Atlantic Forest of Espírito Santo. These data reinforce the importance of continuously inventorying and documenting bats in the Neotropics.

Specimens of the Neotropical dog-faced bats of the genus Cynomops Thomas, 1920 are poorly represented in museum collections, and the geographical distributions of the eight species are not well known. We report voucher specimens that confirm the presence of C. greenhalli Goodwin, 1958 in the Tropical Wet Forest of Costa Rica. These specimens represent an extension of the distribution into the Caribbean Central America.