Navegando por Assunto "Integrative taxonomy"

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Artigo
First multi-instar descriptions of cave-dwelling Whartonia Ewing, 1944 (Parasitengona, Leeuwenhoekiidae) from Brazil through integrative taxonomy
(2023-03-30) Gomes-Almeida, Brenda ; Costa, Samuel ; Ribeiro, Dante ; Bernardi, Leopoldo ; Pepato, Almir
For the first time deutonymphs and adults (females and males) of species belonging to Whartonia, a genus with post-larval stages commonly found in caves and larvae as ectoparasites of bats, are described. Two species from new localities in states of Pará (Eastern Amazon) and Minas Gerais (southeastern Brazil) are reported. Post-larval cave dwelling mites could be unambiguously associated with W. (W). pachywhartoni and W. (W.) nudosetosa larvae using mitochondrial COI and nuclear ribosomal 28S sequence data, despite apparent oversplitting by species delimitation methods. They are distinguished from closely related Albeckia senase, a species with described deutonymphs, by having eyes and by the shape of idiosomal setae. They are very similar to each other, being distinguished mainly by the distribution of special setae on legs, and shape of idiosomal setae. Detailed redescriptions of the two larvae are presented based on individuals found on bats belonging to nine species, with six new host species association: Anoura caudifer, Diphylla ecaudata, Mimon bennettii, Platyrrhinus lineatus, Sturnira lilium (Phyllostomidae) and Peropteryx trinitatis (Emballonuridae).
Artigo
Molecular delimitation of the seasonal killifishes of the Hypsolebias antenori species group (Cyprinodontiformes, Rivulidae), with description of two new species from the Caatinga coastal basins, northeastern Brazil
(2023-12-22) Abrantes, Yuri Gomes ; Ramos, Telton Pedro Anselmo ; Bento, Diego de Medeiros ; Lima, Sergio Maia Queiroz
Hypsolebia antenori is a seasonal killifish considered to be broadly distributed along the Caatinga’s basins of northeastern Brazil, with records in the coastal drainages of the rio Pacoti, rio Jaguaribe, córrego Virgílio and rio Apodi-Mossoró basins. Based on morphological characters and molecular phylogenetic reconstructions, it was possible to diagnose two new species and restrict H. antenori to the rio Jaguaribe basin. Hypsolebias gongobira new species is described from a temporary pool in the rio Pacoti basin in Ceará State, in syntopy with the species threatened H. longignatus. Hypsolebias bonita new species occurs in the floodplains of the rio Apodi-Mossoró basin and in the córrego Virgílio microbasin in the Furna Feia National Park, in Rio Grande do Norte State. We also discuss the conservation status of these new species and how the São Francisco Interbasin Water transfer, and the agricultural and urban expansion in the semiarid may be adversely affecting these seasonal killifishes.
Artigo
A new genus and new species of macronyssid mite (Mesostigmata: Gamasina: Macronyssidae) from Brazilian caves including molecular data and key for genera occurring in Brazil
(2021-05-27) Gomes-Almeida, Brenda K.; Pepato, Almir R.
A new genus and a new species of macronyssid mites is described based on material collected from caves in Minas Gerais state, Southeastern Brazil, and additional occurrences from caves in Rio de Janeiro (Southeast) and Pará (Eastern Amazon region). The new genus may be distinguished from other Macronyssidae genera by the combination of sternal shield with a distinct X-shaped area; sternal shield bearing three pairs of setae and two pairs of pores; sternal gland absent; anterior spur on coxa II lacking; adults with dorsal shield entire and j and J series complete; adults and protonymphs with setae J5 minute; males with strong-pores on dorsal shield and peritrema short extending from posterior margin of coxae II to the anterior margin of coxae IV. A key for genera occurring in Brazil is provided, as well sequences from the mitochondrial large subunit of ribosome (16S).