Amanahyphes saguassu, a new genus and species of Leptohyphidae (Ephemeroptera: Ephemerelloidea) from northern Brazil

Abstract

Amanahyphes saguassu gen. et sp. n. from the Amazon basin is described and illustrated from all life stages. This is the second known genus in Leptohyphidae to show divided eyes in the male, a rather infrequent characteristic in the family. Some defining characters of this new taxon include: adults dipterous, forewings with Cu-A lobe not enlarged, forceps bisegmented, and nymphs slender with very long legs, abdominal gills on segments II -V, and subquadrate operculate gills on abdominal segment II.

Leptohyphidae (Insecta: Ephemeroptera) from northeastern Brazil

“…Species identification was based on Domínguez et al (2006) and Dias et al (2007a, b), but several relevant publications for each taxon were used as well (e.g. Molineri 2001a,b, Dias & Salles 2005, Salles & Molineri 2006. The photographs were taken using a Leica (M165C) stereomicroscope with a DFC420 digital camera.…”

Phylogeny of the mayfly family Leptohyphidae (Insecta: Ephemeroptera) in South America

“…A data matrix (Supplementary Material S1) was constructed for all the South American species of Ephemerelloidea (nine leptohyphid genera, one coryphorid and one melanemerellid) and representative members of the proposed sister groups of Leptohyphidae: Tricorythidae, Ephemerythidae, Machadorythidae, Teloganodidae (Landa & Soldán, 1985; Peters & Peters, 1993; McCafferty & Wang, 2000). Adults and nymphs of Amanahyphes Salles & Molineri (2006) and the nymphal stage of Macunahyphes australis [in Dias et al (2005)] were only recently discovered and could not be included in the present analysis. The trees were rooted in Ephemerella (Ephemerellidae).…”

“…1 1 During the revision of this manuscript, a few South American leptohyphid taxa were newly described (Dias & Salles, 2005; Molineri & Zuñiga, 2006; Salles & Molineri, 2006), and were not included in the present analysis. …”

Novos registros de Ephemerelloidea (Insecta: Ephemeroptera) para o estado de São Paulo

“…Coryphoridae e Melanemerellidae são monotípicas, a primeira está reportada para o Brasil, Colômbia e Guiana Francesa e a segunda é endêmica para o Brasil (Ulmer 1920, Peters 1981, Orth et al 2000, Molineri & Domínguez 2003. Leptohyphidae com uma distribuição Pan-americana é a mais representativa, com atualmente 24 espécies registradas para o Brasil (Molineri 2004, Salles et al 2004, Dias & Salles 2005, Salles & Molineri 2006. Na Região Sudeste do Brasil, Ephemerelloidea está constituída por Leptohyphidae e Melanemerellidae, com 14 espécies registradas (Molineri 2001a,b, 2002, 2003, 2004, 2005, Salles et al 2004, Dias & Salles 2005.…”