Abstract The Sarcophagidae family (Diptera) encompasses a group of flies of significant ecological importance. Additionally, numerous species within this family hold substantial value in the realms of medicine, veterinary and forensic science. The objective of this study was to conduct a comprehensive survey of Sarcophagidae species within transitional zones between the Caatinga and Cerrado biomes in the Northeastern region of Brazil. To achieve this, a total of 15 field expeditions were conducted across three distinct phytophysiognomies—riparian, vereda, and a segment of shrubby Caatinga—from 2019 to 2021. A total of 16 genera and 40 species were collected. Among them, a new species for science (Titanogrypa (Airypel) sp. nov.), Emblemasoma emblemasoma Dodge is newly recorded from South America/Brazil and the Caatinga biome, and three species constitute new records for the Northeast region (Dexosarcophaga patiuorum Santos, Pape & Mello-Patiu, Lepidodexia (Notochaeta) fumipennis (Lopes), and Oxysarcodexia meridionalis (Engel)). The most abundant species were Oxysarcodexia thornax (Walker), Oxysarcodexia avuncula (Lopes), and Argoravinia (Argoravinia) catiae Carvalho Filho & Esposito, collectively constituting 56.11% of the entire collected sample. The distribution of species across different vegetations was noted, with 19 species exclusive to riparian vegetation, three to vereda vegetation, and seven species unique to the Caatinga. Diptera (Diptera importance Additionally medicine Brazil 1 phytophysiognomiesriparian, phytophysiognomiesriparian phytophysiognomies riparian, phytophysiognomies—riparian Caatingafrom 201 2021 4 them Titanogrypa Airypel (Airypel sp nov., nov nov. , nov.) AmericaBrazil America biome Dexosarcophaga Santos MelloPatiu, MelloPatiu Mello Patiu, Patiu Mello-Patiu Notochaeta (Notochaeta Lopes, Lopes (Lopes) Engel. Engel . (Engel)) Walker, Walker (Walker) (Argoravinia Esposito 5611 56 11 56.11 sample noted vegetation 20 202 (Lopes (Engel) (Walker 561 5 56.1 2 (Engel 56.

The subfamily Chloropinae comprises about 442 described species, with only one species recorded from the Brazilian Amazon. The genus Bricelochlorops Paganelli was represented by a unique species from Rio de Janeiro, Brazil. The species Urubambina rufa (Duda) is the only species of the genus Urubambina Paganelli and has been recorded only from Peru. A new species of Bricelochlorops, B. celutae sp. nov., is described here and Urubambina rufa is recorded for the first time in Brazil. Both species were collected in the state of Acre. A key to species of Bricelochlorops is provided.

O presente estudo fornece dados oriundos de coletas em várias localidades da Amazônia e de espécimes depositados na Coleção Entomológica do Museu Paraense Emílio Goeldi (MPEG-Belém). Os Neriidae foram coletados com armadilhas contendo matéria orgânica em decomposição (banana e pulmão bovino). O gênero Odontoloxozus Enderlein, representado pela espécie Odontoloxozus peruanus Hennig é registrado pela primeira vez no Brasil. As espécies Glyphidops (Glyphidops) flavipes (Widemann), G. (Oncopsia) flavifrons (Bigot), G. (O.) durus (Cresson) e G. (O.) dipsar (Hennig) são novas ocorrências para o Brasil. As espécies G. (O.) carrerai Aczél e N. plurivittatus Bigot são novos registros para a Amazônia Brasileira. Uma chave dicotômica para as espécies é apresentada.

The present study brings together survey data from collection in several localities in the Brazilian Amazon and specimens from the Entomological Collection of Museu Paraense Emílio Goeldi (MPEG-Belém). The flies were collected over organic decomposing matter (bananas and bovine meat) baits. The genus Odontoloxozus Enderlein, with the species Odontoloxozus peruanus Hennig, is recorded from Brazil for the first time. The species Glyphidops (Glyphidops) flavipes (Widemann), G. (Oncopsia) flavifrons (Bigot), G.(O.) durus (Cresson) and G. (O.) dipsar (Hennig) are new occurrences for Brazil. The species G. (O.)carrerai Aczél and N. plurivittatus Bigot are new occurrences from Brazilian Amazon. A key to Brazilian Amazon species is provided.