Distribution of immature Plecoptera genera (Arthropoda: Insecta) in streams of Brazilian Federal District
Year: 2026
Type: article
Abstract: This study aimed to analyze the distribution and diversity of immature Plecoptera in the Distrito Federal (DF), Brazil, based on specimens deposited in the Aquatic Invertebrate Collection of the University of Brasília. Sampling was conducted between 2005 and 2018 in streams of the DF, within the São Bartolomeu, Paranoá, Preto, Maranhão and Descoberto river basins. D-nets, sieves and Surber samplers were employed for collection. Specimens were preserved in 70% ethanol, identified to genus level, and deposited in the collection. A total of 514 Plecoptera specimens were identified, 394 belonging to the family Perlidae and 120 to Gripopterygidae. The most representative genus was Anacroneuria (266 individuals), followed by Tupiperla (65), Kempnyia (60), Gripopteryx (46), Macrogynoplax (32) and Paragripopteryx (9). Perlidae showed a wide distribution, being recorded in all sampled basins. In contrast, Gripopterygidae was recorded in only three basins (Paranoá, Maranhão and São Bartolomeu), suggesting a possibly narrower distribution within the Distrito Federal. The predominance of Perlidae in the analyzed material may reflect its broad distribution and representation in Brazilian Plecoptera, although differences in sampling effort and habitat availability should also be considered. Although data on the order Plecoptera alone do not allow conclusions regarding the conservation status of the region’s basins, they provide relevant information for understanding the structure of local benthic communities.
Source: Heringeriana
Institutions: Universidade de Brasília, University of the Federal District
Language: English
Subfield: Insect Science
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W7220722294