Brasilocaenis elidioi ( Lima, Molineri, Pinheiro & Salles, 2016a )

Nascimento, Stênio R. S., Cruz, Paulo V., Lima, Lucas R. C., Lima, Cláudia R. T., Hamada, Neusa & Ale-Rocha, Rosaly, 2023, New species and records of Caenidae Newman, 1853 (Insecta: Ephemeroptera) from Rondônia State, Northern Brazil, Zootaxa 5339 (3), pp. 237-255 : 247-250

Brasilocaenis elidioi ( Lima, Molineri, Pinheiro & Salles, 2016a) ( Figs. 10A–B )

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); Lima & Boldrini, 2017: 286 (adult).

Brasilocaenis elidioi, Lima et al. 2019: 90 ; Nascimento et al. 2022: 117 .

Distribution. Brazil: states of Bahia, Ceará, Espírito Santo, Mato Grosso, Minas Gerais, Maranh„o, Paraíba, Pernambuco, Roraima and Piauí. New record: Rondônia State.

Material examined. One ♁ imago (light trap), Brazil, Rondônia State, Rolim de Moura municipality, Experimental Farm of UNIR , S11°34’56.8”, W61°45’51.4”, 14.viii.2022, Nascimento, S. R . S., Cruz, P. V ., Lima, C. R. T . cols. ( INPA); three ♁ imagos (light trap), Brazil, Rondônia State, Rolim de Moura municipality, Waterfall , road 192 south, S11°50’34.8”, W61°42’50.3”, 15.viii.2022, Nascimento, S. R . S., Cruz, P. V ., Lima, C. R. T . cols. ( INPA); 12 ♁ imagos (light trap), same data except, 15.viii.2022; three ♁ imagos (light trap), Brazil, Rondônia State, Ji-Paraná municipality, Urupá River , S11°02’07.8”, W62°08’41.5”, 23.viii.2022, Nascimento, S. R . S., Cruz, P. V ., Lima, C. R. T . cols. ( INPA).

Comments. This species can be characterized by the presence of pointed forceps, abruptly sharpening distally, forming a long tip at the apex, and penis dorsally and laterally protruding (adapted from Lima et al. 2016a). After a morphological comparison analysis, no variations were observed between the specimens collected in the State of Rondônia and the original description of B. elidioi .

Figures

FIGURE 10. Male imagos, body dorsal view and genitalia ventral view: A–B, Brasilocaenis elidioi; C–D, B. irmleri; E–F, Caenis chamie; G–H, C. fittkaui; I–J Latineosus sigillatus. (Scale: Figs. 10A, C, E, G, I = 1 mm; Figs. 10B, D, F, H, J = 0.1 mm).