Foi examinado o h?bito alimentar das esp?cies de Vespertilionidae Myotis nigricans (Schinz, 1821) e Eptesicus furinalis (d?Orbigny, 1847) por meio de an?lise de amostras fecais coletadas em animais capturados em ?rea de cerrado
sensu stricto e matas de galeria, na APA ? Gama-Cabe?a-de-Veado, Bras?lia, Distrito Federal, Brasil. Um total de 20 amostras fecais foi analisado, sendo sete de E. furinalis e 13 de M. nigricans. A dieta de E. furinalis incluiu seis ordens de insetos: Coleoptera (5/7) (presen?a na amostra total), Lepidoptera e Hymenoptera (3/7), Diptera, Hemiptera e Homoptera (1/7). A dieta de M. nigricans incluiu todas as ordens consumidas por E. furinalis (6/13, 4/13, 4/13, 3/13, 1/13, and 4/13 respectively) e uma ordem a mais: Orthoptera (1/13). Homoptera, Diptera e Orthoptera s? foram amostrados para morcegos capturados em mata de galeria. H? 80% de sobreposi??o na dieta destas duas
esp?cies. A preda??o sobre esp?cies das fam?lias Scarabeidae, Hesperiidae, Sphingidae e Saturniidae confirma o potencial dos morcegos como agentes de controle biol?gicos de pragas em ecossistemas agr?colas.We examined food habits of Vespertilionidae bats Myotis nigricans (Schinz, 1821) and Eptesicus furinalis
(d?Orbigny, 1847) by fecal analysis in cerrado sensu stricto and gallery forests, within APA ? Gama-Cabe?a-de-Veado, Bras?lia, Distrito Federal, Brazil. Out of 20 fecal samples collected, seven were of Eptesicus furinalis and 13 of Myotis
nigricans. The diet of E. furinalis included six orders of insects: Coleoptera (5/7 by items presence), Lepidoptera and
Hymenoptera (3/7), Diptera, Hemiptera and Homoptera (1/7). The diet of M. nigricans included all the main orders consumed by E. furinalis (6/13, 4/13, 4/13, 3/13, 1/13, and 4/13 respectively) and one other order: Orthoptera (1/13). Homoptera, Diptera and Orthoptera were collected only in bats captured in gallery forest. There is 80% of overlap in the diet of these two species. Predation on species of Scarabeidae, Hesperiidae, Sphingidae and Saturniidae families confirms bats potential as biological control agents of pests in agricultural ecosystems