Caenis elidioi Lima, Molineri, Pinheiro & Salles, 2016

Lima, Lucas R. C. & Boldrini, Rafael, 2017, New distributional records and life stage description of Caenis species (Ephemeroptera: Caenidae) from Brazil, Zootaxa 4276 (2), pp. 285-292 : 286

Caenis elidioi Lima, Molineri, Pinheiro & Salles, 2016

( Fig. 2 )

Caenis sp. Angeli et al., 2015: 200 (adults); Lima et al., 2016b: 215 (adults and nymphs). Caenis elidioi Lima et al., 2016a: 117 (adults, nymph and eggs).

Distribution. Brazil: States of Bahia, Ceará, Espírito Santo, Maranhão, Mato Grosso, Minas Gerais, Paraíba, and Pernambuco. New record: Roraima State.

Material examined. Seven males imagos, Brazil, Roraima State, Amajari, Estação Ecológica de Maracá, 11– 19.xi.2007, Pes, A.M.O., Neiss, U.G. and Albino, J. cols.

Comments. Caenis elidioi , recently described from all stages by Lima et al. (2016a), is another species from the lineage with strong and apically pointed forceps. C. elidioi can be characterized, among other characters by the presence of forceps pointed, sharpening abruptly and forming a long tip at the apex, and penes dorsally and laterally protruding as Figs. 8–9 in Lima et al. (2016a). This species seems to be widespread in Brazil and its record here represent the first in the Amazon River Basin.

Figures

FIGURES 1 – 3. Caenis spp., male (dorsal view). 1, C. cuniana. 2, C. elidioi. 3, C. teipunensis.

FIGURES 8 – 10. Caenis reissi, nymph. 8, dorsal view. 9, opercular gill. 10, detail of IX sternum (ventral view).