Bat acoustic libraries are important tools that assemble echolocation calls to allow the comparison and discrimination to confirm species identifications. The Sonozotz project represents the first nation‐wide library of bat echolocation calls for a megadiverse country. It was assembled following a standardized recording protocol that aimed to cover different recording habitats, recording techniques, and call variation inherent to individuals. The Sonozotz project included 69 species of echolocating bats, a high species richness that represents 50% of bat species found in the country. We include recommendations on how the database can be used and how the sampling methods can be potentially replicated in countries with similar environmental and geographic conditions. To our knowledge, this represents the most exhaustive effort to date to document and compile the diversity of bat echolocation calls for a megadiverse country. This database will be useful to address a range of ecological questions including the effects of anthropogenic activities on bat communities through the analysis of bat sound.

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The giant fruit-eating bat (Artibeus lituratus) is known to use a variety of roosts both in natural and man-made structures. Reported roosts for this species include caves, abandoned constructions, tunnels, bridges, mines, modified and unmodified leaves, and hollow trees. This bat appears to be opportunistic in relation to use of roosts. In this paper I report individuals of A. lituratus roosting inside a termite mud tube in Chiapas, Mexico, and make some observations on group composition.Keywords: Artibeus lituratus, Chiapas, Chiroptera, roost.Palabras clave: Artibeus lituratus, Chiapas, Chiroptera, refugio.

We captured bats in natural protected areas in Chiapas, Mexico, including five individuals of the species Macrophyllum macrophyllum, Micronycteris schmidtorum, and Vampyrum spectrum. We report new localities on the distribution of this three species, extending their distribution ranges.KEY WORDS: Chiapas, distribution, Macrophyllum macrophyllum, Micronycteris schmidtorum, Vampyrum spectrum.PALABRAS CLAVE: Chiapas, distribución, Macrophyllum macrophyllum, Micronycteris schmidtorum, Vampyrum spectrum

We present field observations on the consumption of guava fruit (Psidium guajava) by the giant fruit-eating bat (Artibeus lituratus). These observations include time consumption of the fruit, moving foraging, and feeding behavior in general.Keywords: feeding behavior, ecology, Chiroptera, Chiapas.Palabras clave: comportamiento alimenticio, ecología, Chiroptera, Chiapas.