title: Longivena, a new robber-fly genus from Brazil (Diptera, Asilidae, Asilinae).
abstract: Longivena gen. n. and five new species are described and illustrated from caatinga and cerrado habitats from Brazil: Longivenadigitata sp. n., type-species (Maranhão, Bahia, Minas Gerais and Mato Grosso do Sul states), Longivenabilobata sp. n. (Maranhão state), Longivenaflava sp. n. (Mato Grosso do Sul state), Longivenalimeiraoliverai sp. n. (Maranhão state), Longivenaspatulata sp. n. (Maranhão state). An illustrated key is also provided.
authors.affiliation: Instituto Nacional de Pesquisas da Amazônia - INPA, Coordenação de Biodiversidade, CEP 69060-000, Manaus, Amazonas, Brazil.
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Vieira
authors.affiliation: Instituto Nacional de Pesquisas da Amazônia - INPA, Coordenação de Pesquisas em Biodiversidade, Campus II, CEP 69060-000, Manaus, Amazonas, Brazil.
authors.forename: José Albertino
authors.initials: JA
authors.lastname: Rafael
keywords: Asilidae; Efferia group; Neotropical; new genus and species; taxonomy