taxonID	type	description	language	source
038C87E5F04F451AFE67F98D770CF8B4.taxon	materials_examined	Material examined. COLOMBIA. Three nymphs. META: Villavicencio, Caño Quenane, SENA- Hachón. 4.067222, - 73.500000, 329 m (Figure 1), 19. xi. 2014. Col. J. Rojas Peña. Previous distribution. Bolivia: states of Santa Cruz and Beni. Brazil: states of Amazonas, Mato Grosso, Rondônia, Roraima and Piauí. Colombia: state of Amazonas. B. irmleri was described based on exuvie nymphs, male and female adults collected in Manaus, Brazil (Puthz 1975). This species was registered for the first time in Colombia from Leticia-Amazonas (Domínguez et al. 2006) and its record here represent the first in the Orinoco River Basin.	en	Salinas-Jiménez, Luis Gonzalo, Lima, Lucas Ramos Costa, Rojas-Peña, Jose Ismael, Caro-Caro, Clara Ines (2024): First record of the nymph of Caenis cuniana Froehlich, 1969 (Caenidae: Ephemeroptera) and new distributional records of Caenidae from Colombia. EntomoBrasilis (e 1087) 17: 1-3, DOI: 10.12741/ebrasilis.v17.e1087, URL: https://doi.org/10.12741/ebrasilis.v17.e1087
038C87E5F04F451AFE67F8A17035F789.taxon	materials_examined	Material examined. COLOMBIA. Ten nymphs. META: Villavicencio, Caño Quenane. 4.075856, - 73.376244 (Figure 1), 280 m, 26. ii. 2015. Col. J. Rojas Peña, LG Salinas Jimenez. Previous distribution. Brazil: states of Goiás, Pernambuco, Rondônia, Roraima and Piauí. Colombia: state of Valle del Cauca. Caenis chamie was described based on nymphs, male and female adults collected in the Colombian Andean region (Alba-Tercedor & Mosquera 1999). Here, we present the new distributional records of this species from Colombian Orinoquia region.	en	Salinas-Jiménez, Luis Gonzalo, Lima, Lucas Ramos Costa, Rojas-Peña, Jose Ismael, Caro-Caro, Clara Ines (2024): First record of the nymph of Caenis cuniana Froehlich, 1969 (Caenidae: Ephemeroptera) and new distributional records of Caenidae from Colombia. EntomoBrasilis (e 1087) 17: 1-3, DOI: 10.12741/ebrasilis.v17.e1087, URL: https://doi.org/10.12741/ebrasilis.v17.e1087
038C87E5F04D4518FFDBFFF17088FC0E.taxon	materials_examined	Material examined. COLOMBIA Seven nymphs, META: Villavicencio, Caño Quenane. 4.075856, - 73.376244 (Figure 1), 280 m, 26. ii. 2015. Col. J. Rojas Peña, LG. Salinas Jimenez. Previous distribution. Brazil: States of Espírito Santo, Mato Grosso, Pará, Pernambuco, Rio de Janeiro, Roraima and SÃo Paulo. Caenis cuniana was first described based on eggs, nymphs, and female adults from Brazil (Froehlich 1969); posteriorly the male adult was described by Silva (1993). We present the first record of this species from Colombia, based on nymphs collected in the Colombian Orinoco River basin. The nymphal stage of this species is characterized by: 1) lateral margins of pronotum almost parallel, a little broader anteriorly (Figures 2 - 3 in Froehlich 1969 and Figure 76 B in Domínguez et al. 2006); 3) coxal processes of middle and hind legs narrow and sickle-shaped with margins smooth (Figure 76 E in Domínguez et al. 2006); 4) tarsal claws of fore and middle legs with denticles which increase in size toward apex (Figures 3 A and 3 B), those of hind legs with 3 - 6 small denticles followed by a row of bifid or multifid setules (Figure 3 C); and 5) sternum IX rounded (Figures 4 and 5 in Froehlich, 1969). The Ephemeroptera order in the Colombian Orinoquia region is poorly known with 11 species registered (Zuñiga & Torres-Zambrano 2015; Dias et al. 2016; Salinas-Jiménez et al. 2017, 2018, 2019; Rojas-Peña et al. 2021; Velásquez-Lopes et al. 2024). This manuscript is the first record of Caenidae species in the Meta state, expanding Ephemeroptera order geographical distribution in Colombian Orinoquia.	en	Salinas-Jiménez, Luis Gonzalo, Lima, Lucas Ramos Costa, Rojas-Peña, Jose Ismael, Caro-Caro, Clara Ines (2024): First record of the nymph of Caenis cuniana Froehlich, 1969 (Caenidae: Ephemeroptera) and new distributional records of Caenidae from Colombia. EntomoBrasilis (e 1087) 17: 1-3, DOI: 10.12741/ebrasilis.v17.e1087, URL: https://doi.org/10.12741/ebrasilis.v17.e1087
