This list contains information on the Drosophilidae that occur in the Brazilian state of Pará, Amazon biome, and an analysis of the current knowledge of Drosophilidae based on museum material and literature records. This list includes a detailed account of the material deposited in the entomological collections of the Museu Paraense Emílio Goeldi and Museu de Zoologia da Universidade de São Paulo, up to 2015. In total, 122 species of Drosophilidae were registered, including 27 new records for the state of Pará and 22 are new records for the Amazon; for instance, the genera Diathoneura and Rhinoleucophenga, and three new records for Brazil, (Drosophila fasciola, Diathoneura flavolineata and Drosophila neochracea). The state of Pará is the third state in Brazil in terms of numbers of species of Drosophilidae, with 17% locally native species. Despite the high species richness, there is still a lot to be known about the states's Drosophilidae fauna. This study highlights the importance of scientific collections, particularly as an aid to study regional biodiversity.
The composition and potential hosts of mycophagous Drosophilidae from a section of the Brazilian Amazon forest in the Caxiuanã National forest were investigated. Sampling was performed in three different periods at long the wet season (January (beginning) and July (end) 2013 and May (middle) 2014). The samples were collected from existing trails by actively searching for fungal fruiting bodies where Drosophilidae were present. We present composition and richness analysis over two years of sampling sampling Drosophilidae and Fungi. We evaluate sampling completeness using asymptotic species richness estimators. Out of 159 fruiting body samples and 64 fungal species, 5,124 drosophilids belonging to 55 species and 5 genera were collected. The mycophagous Drosophilidae richness values estimated by Jackknife 1 and Bootstrap were 69 and 61, respectively. The estimated fly richness correlated positively with fungal richness and abundance. Among the Drosophilidae species identified in this study, approximately 5% represent new occurrences for Brazil and 56% represent new species. Four genera belonging to the Zygothrica genus group are found in the Amazon region, and these genera represent 80% of the fungus-associated fauna known to date for the tropics. In conclusion, our results show that the fungal richness and abundance were the factors that determined the high diversity of mycophagous Drosophilidae.
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