The first studies of Leptophlebiidae in the Santa Catarina State, Southern Brazil, dated from 1920. Since then, not much is known about the family (even to the Order Ephemeroptera) to the State. The main goal of this study was to survey fauna of Leptophlebiidae in the Santa Catarina State based on nymphs. The material was obtained from the collection deposited at the Laboratório de Pesquisa em Ecologia e Química of the Universidade Comunitária da Região de Chapecó, besides additional specimens collected between 2008 and 2009. Occurrences were plotted in the hydrograph map of Santa Catarina State, with one map for each genus. The Leptophlebiidae nymphs were recorded in 26 aquatic environments that included small streams and rivers. We identified 24 morphotypes distributed in 12 genera. Number of genera in the Western of Santa Catarina increased from eight to 15. Thraulodes, Ulmeritoides and Homothraulus presented higher frequency of occurrence in the region. Leentvaaria and Hermanella were associated to regions well conserved such as in the Araucaria forest. Needhamella and Segesta were related mainly to Irani River.
The Serra da Mocidade National Park is a conservation area located in one of the most inaccessible portions of Amazonia Biome in the Roraima State. The first survey of aquatic insects from that in this region was undertaken in January to February 2016 and we present a checklist of eight species of the Leptophlebiidae (Ephemeroptera) found in the Park and describe three new species of Miroculis based on male imagos.
In the present work based on material from several areas in Brazil, the species of Americabaetis represented in the country are revised. A new species, A. mecistognathus, sp. nov., is described based on nymphs from Santa Catarina, the male adult of A. labiosus Lugo-Ortiz & McCafferty is described, a key to the nymphs of the South American species is provided, whereas comments regarding the taxonomy and habitat distribution of the Brazilian species are presented.
A new species of Miroculis is described based on all developmental stages (nymph, and male and female imagos). Miroculis yulieae sp. nov. is recorded from the transitional area of Cerrado-Amazonia, Brazil.
Gioás State is located in the Central Region of Brazil belonging to a massive area of the Cerrado biome. The knowledge of Ephemeroptera in Goiás is limited by few derived from punctual collections. As result of a survey in 25 sample sites of Goiás, I present a taxonomic contribution of Ephemeroptera from the State. From the total of 830 specimens collected, 21 genera and 25 species were recorded. Caenidae (Caenis) is recorded from Goiás for the first time, as well as new records of 10 genera and 16 species. Key words: Cerrado; Checklist; Neotropics; Brazilian Savanna; mayfly; taxonomy
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