| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000435985 |
| ISSN: | 0001-3765 |
| Autors: | Muzón, Javier1 Lozano, Federico1 |
| Institucions: | 1Universidad Nacional de Avellaneda, Laboratorio de Biodiversidad y Genética Ambiental, Piñeyro, Buenos Aires. Argentina |
| Any: | 2020 |
| Volum: | 92 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | A new coenagrionid genus, Negragrion, is described for N. sagma sp.n. found in Argentina and Brazil (Holotype and allotype, pair in tandem. Argentina: Corrientes: Santo Tomé, arroyo Ita Cuá sobre RP 94, 28°26’48.30”S 56°00’33.11”W, 24.ii.2003, Muzón & Pessacq coll., MLP). The new genus is characterized by the shape of male cerci (decumbent from base; saddle-shaped; in lateral view with an acute apophysis directed dorsally located at 0.3 from base). The presence of a vulvar spine on S8 of females places this genus within Ischnurinae. A cladistics analysis using morphological data was carried out to determine its phylogenetic position. Negragrion gen.n. is recovered within the clade 4 as the sister group of the clade (Acanthallagma Acanthagrion (Oxyagrion, Fluminagrion)) |
| Disciplines | Biología |
| Paraules clau: | Insectos, Taxonomía y sistemática, Nuevas especies, Descripción taxonómica, Filogenia, Negragrion sagma, Odonata, Argentina, Brasil |
| Keyword: | Insects, Taxonomy and systematics, New species, Taxonomic description, Phylogeny, Negragrion sagma, Odonata, Argentina, Brazil |
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