A new species of Asthenopus (Ephemeroptera: Polymitarcyidae: Asthenopodinae) from Brazil and Colombia

Abstract

A new species of Asthenopus, A. crenulatus sp. nov. is described from adults of both sexes from Brazil and Colombia. The new species is diagnosed by: male foreleg length 0.7–0.9 times the length of fore wing, marginal intercalary veins on the entire margin of fore and hind wings generally shorter than distance between longitudinal veins, forceps and penes long and slender, penes with many subapical spines. This new species is closely related with A. picteti (Hubbard). A key to the male adults of Asthenopus is included.

Phylogeny and biogeography of Asthenopodinae with a revision of Asthenopus, reinstatement of Asthenopodes, and the description of the new genera Hubbardipes and Priasthenopus (Ephemeroptera, Polymitarcyidae)

“…Hubbardipes was recovered as sister to a larger clade containing Priasthenopus , Asthenopus , Povilla and Languidipes (see synapomorphies in Appendix 2), not related with Asthenopodes , as previously thought (Molineri et al 2011). Hubbardipes shows many differences in the adult stage and, more markedly in the nymph and egg here described for the first time.…”

“…n. presents defining characters in all stages (see below). The species described from adults by Molineri et al (2011) as Asthenopus crenulatus is now known in all the stages (see below) and a new genus Hubbardipes is proposed for it. Hubbardipes gen. n. is supported as sister to the remaining Asthenopodinae (i.e., excluding Asthenopodes ).…”

“…Hubbardipes shows many differences in the adult stage and, more markedly in the nymph and egg here described for the first time. Male genitalia is unique in form and structure (Molineri et al 2011), nymphal tusks and microsculpture on disk-like structures of the egg are exceptional as well.…”

“…Listed in Molineri et al (2011), from Brazil (Amazonas, Presidente Figueiredo) and Colombia (Amazonas, Leticia, Reserva Natural Palmarí). Additional material: 2 male subimagos and 3 nymphs from BRAZIL: Amazonas, Tefé, São João do Catuaí, Igarapé Jutaí (A07), S 3°41'52.8" - W 64°9'18", 12.ix.2003, luz UV1, 067 FCM (CZNC); 7 nymphs from COLOMBIA, Dpto.…”

New records of Ephemeroptera from the Colombian Orinoco river basin of the Meta department

“…In South America there are 570 reported species (Domínguez and Dos Santos, 2013), of which, approximately, 86 are known in Colombia Domínguez et al 2012;Forero-Céspedes et al 2014;García et al 2013;Gutiérrez and Reinoso-Flórez, 2010;Gutiérrez, et al 2013;Gutiérrez and Llano 2015;Hoyos et al 2014;Molineri, 2014;Molineri et al 2011;Motta-Díaz et al 2012;Rozo and Salinas 2016;Salinas et al 2011;Salinas et al 2013;Salinas et al 2012;Vinasco-Mondragón and Zúñiga, 2016;Zúñiga et al 2014;Zúñiga and Torres-Zambrano 2015). In the country, the Baetidae, Leptophlebiidae and Leptohyphidae families represent more than 70 % of the Ephemeroptera order diversity.…”