Nyctinomops laticaudatus (É. Geoffroy St.-Hilaire, 1805) and Eumops nanus (Miller, 1900) are 2 species with distributions that are expected for Costa Rica. However, voucher specimens that confirm the presence of these species in the country are absent or missing in museum collections. Here we document voucher specimens and present data that confirm the presence of N. laticaudatus and E. nanus in Costa Rica.
