LAUSR

portuguesInvestigamos a composicao da dieta de Natalus mexicanus em uma floresta perenifolia no estado de Oaxaca, no sudeste do Mexico, utilizando analise fecal. A dieta foi composta por oito ordens de artropodes, sendo as presas mais abundantes e importantes foram membros das ordens Diptera, Coleoptera, Hemiptera e Hymenoptera. Nao observamos diferencas significativas na composicao da dieta entre machos e femeas ou nas proporcoes consumidas pelos morcegos e aquelas obtidas atraves de coletas com armadilha luminosa. Na area de estudo, N. mexicanus e uma especie com dieta oportunista generalista. EnglishWe investigated the diet composition of Natalus mexicanus in a semi-evergreen forest in the state of Oaxaca, in the southeast of Mexico, using fecal analysis. The diet was composed of eight arthropod orders, the most abundant and important preys being members of the orders Diptera, Coleoptera, Hemiptera, and Hymenoptera. We did not observe significant differences in diet composition between males and females or in proportions consumed by the bats and those obtained through collections with light traps. In the study area, N. mexicanus is a species with a generalist opportunist diet.