Hagenulopsis minuta Spieth, 1943 (Figs 2E, 11A–F) Hagenulopsis minuta Spieth, 1943: 10 (description); Traver 1946: 247 (note); Peters & Domínguez 2001: 354 (revision). Material examined. BRAZIL, Bahia, Uruçuca, Serra Grande, Parque Estadual Serra do Conduru, Cachoeira da trilha principal, (14°29′48.5″S, 39°07′53.1″ W; 227 m a.s.l) 18.i.2014, Light pan trap, Dias E. & Pereira T. leg., 5 s ♂♂, 2 ♂♂ (MHNBA); same data as for preceding, except for: Chapada diamantina, Capão, Riacho do Morro Branco; (19°39′13.8″S, 41°29′14.3″W; 917 m a.s.l.), 12.v.2014, Entomological net, Salles FF. & Nascimento J. leg., 3 ♂♂ (UFVB); same data as for preceding, except for: Varzedo, Serra da Jiboia Fazenda Baixa Grande, Propriedade do Sr. Getúlio, Córrego Cai Camarão, (12°57′45.3″S, 39°27′13.1″W; 280 m a.s.l.), 09.iv.2015, Malaise trap, Dias E. & Campos R. leg., 1 ♂ (MHNBA); same data as for preceding, except for: Piauí, Piripiri municipality, Cachoeira do Bota-Fora (04°12′51.1″S, 41°40′01.7″ W; 162m a.s.l.), 01.vi.2019, Entomological net, Lima LRC. & Rodrigues JAO. leg., 11 ♂♂ (CEHJ) and 6 ♂♂ (CLBA); same data as preceding, except for: 10.II.2018, 2 ♂♂ (CEHJ); same data as preceding, except for: 15.XII.2018, 1 ♂ (CEHJ); same data as preceding, except for: Espírito Santo, Santa Nova Lombardia, Capitel de Santo Antônio, Córrego Grande, (19°52′30.8″ S, 40°31′49.1″ W), 19.ii.2009, CEUNES, leg., 1♂, 1 ♀ (UFVB); same data as preceding, except for: Minas Gerais, Conceição do Mato Dentro, Peixe tolo, (19°00′05″S, 43°36′04″W), 30.xi.2020; Entomological net, Salles FF. leg., 3 ♂♂ (UFVB); same data as preceding, except for: Mato Grosso, Bonito, Fazenda da ONG Brasil Bonito, Rio Taquaral (20°52′14″S, 56°35′19″W; 466m a.s.l.), 27.vi.2009, Light Pan trap, Lecci L., Schulz G. & Stefan G. leg., 1 ♂ (MZUESC-Eph0034). COLOMBIA, Putumayo, Puerto Asís, Quebrada Água Negras (0°31′36.3″N, 76°31′38.3″W), 19.xii.2015, light trap, Dias L. leg., 12 ♂♂, 2♀♀ (UFVB). Remarks. The males imagos sampled in Piauí State (Fig. 11A–D) were caught up in the evening at the riparian environment under a dense canopy cover. Instead of a well-developed bridge between the stalks of the compound eyes, as reported in the literature or based on examined material from Bahia state (Fig. 11E) and Colombia (Fig. 11F), some of these imagos from Piaui state (n = 4) present only a small protuberance. According to Peters & Domínguez (2001), the presence of these protuberances is a subimaginal character, which in imagos develop to the bridge characteristic of the species. In order to complement the description of the species, herein we report the absence of this bridge in some of the examined imagos (Fig. 11C–D). Distribution. Brazil (Amazonas, Bahia, Espírito Santo, Mato Grosso [new record], Minas Gerais [new record], Roraima, and Piauí [new record]), Colombia, Guyana, Suriname, Venezuela.

Published as part of Campos, Rogério, Rodrigues, Jackson A. O., Lima, Lucas R. C., Mariano, Rodolfo, Costa, Vini- Cius, Marulanda, Jhon & Salles, Frederico F., 2022, Hagenulopsis Ulmer (Ephemeroptera: Leptophlebiidae): re-description, morphological notes and a new species from South America, Brazil, pp. 73-88 in Zootaxa 5100 (1) on page 86, DOI: 10.11646/zootaxa.5100.1.3, http://zenodo.org/record/6127765