Prey of the Patagonian species Hilarempis sigillata Collin (Diptera, Empididae, Empidinae, Hilarini), and the first record of nocturnal activity in the tribe - Rafael, Jose Albertino; Silva, Vera Cristina; Dantas, Galileu Petronilo da Silva; Amorim, Dalton de Souza (Revista Brasileira de Entomologia, 2023)