Additions and corrections to taxonomy of Apobaetis fiuzai Salles & Lugo-Ortiz, 2002 and Apobaetis kallawaya Nieto, 2006 (Ephemeroptera, Baetidae) Author De Lima, Cláudia R. T. 18795D2E-427D-4A26-B112-70C929CA5B95 Instituto Nacional de Pesquisas da Amazônia (INPA), Coordenação de Pós-Graduação (COPOG), Divisão do Curso em Entomologia (DiEnt), Coordenação de Biodiversidade (CoBio), Laboratório de Citotaxonomia e Insetos Aquáticos, CEP 69067 - 375, Manaus, Amazonas, Brazil. Universidade Federal de Rondônia (UNIR), Departamento de Biologia, Laboratório de Biodiversidade e Conservação, 76.801 - 059, Porto Velho, Rondônia, Brazil. claudia.tavares.lab@gmail.com Author Cruz, Paulo Vilela 34F85F41-2743-4248-813F-0CEEE63FE649 Instituto Nacional de Pesquisas da Amazônia (INPA), Coordenação de Pós-Graduação (COPOG), Divisão do Curso em Entomologia (DiEnt), Coordenação de Biodiversidade (CoBio), Laboratório de Citotaxonomia e Insetos Aquáticos, CEP 69067 - 375, Manaus, Amazonas, Brazil. Universidade Federal de Rondônia (UNIR), Departamento de Biologia, Laboratório de Biodiversidade e Conservação, 76.801 - 059, Porto Velho, Rondônia, Brazil. pvilelacruz@gmail.com Author Hamada, Neusa 0D02F36C-6B09-423C-95A6-6179E9808CD5 Instituto Nacional de Pesquisas da Amazônia (INPA), Coordenação de Pós-Graduação (COPOG), Divisão do Curso em Entomologia (DiEnt), Coordenação de Biodiversidade (CoBio), Laboratório de Citotaxonomia e Insetos Aquáticos, CEP 69067 - 375, Manaus, Amazonas, Brazil. Universidade Federal de Rondônia (UNIR), Departamento de Biologia, Laboratório de Biodiversidade e Conservação, 76.801 - 059, Porto Velho, Rondônia, Brazil. neusaha@gmail.com text European Journal of Taxonomy 2023 2023-07-13 879 1 136 161 http://dx.doi.org/10.5852/ejt.2023.879.2167 journal article 55107 10.5852/ejt.2023.879.2167 ce30301f-248e-4674-bd0c-fcfad4f875ee 2118-9773 8155397 A49B65B5-F27A-44EC-9A13-A39BF72F6E61 Apobaetis luanae sp. nov. urn:lsid:zoobank.org:act: 4DAD1B52-E7CD-42A1-81D5-488EF898A98D Figs 1 , 9–11 Apobaetis kallawaya – Boldrini & Cruz 2014: 4 . Diagnosis NYMPH . Characterized by a combination of the following characters: 1) labrum rectangular with rounded distolateral margins, distal medial margin with three protuberances; dorsal surface with 4 short and simple medial spine-like setae near distal margin; ventral surface with short medial spine-like setae near distal margin ( Fig. 10A, C ); 2) hypopharynx with lingua subquadrangular, elongated, with apical tuft of setae, subequal in length to superlingua ( Fig. 10G ); 3) maxillary palp long 2.0 × length of galea-lacinia; segment II without apical constriction ( Fig. 10H ); 4) labial palp with segment II with robust triangular distomedial projection, apically rounded, laterally directed; segment III triangular ( Fig. 10I ); 5) foreleg with anterior surface of femur with one row of 4 to 5 minute blunt setae, on basal half, near dorsal margin; claw I 0.6× length of tarsus I, with two row of denticles on basal third; 6) posterior margin of tergum IV with triangular spines, wider than long ( Fig. 11D ); 7) paraproct with several marginal spines, posterolateral extension with minute spines ( Fig. 11F ). Etymology The species name is a tribute to Dr Luana Araújo. She spoke out vehemently against the ineffective drugs used to treat COVID- 19 in the testimony to the CPI organized by the Brazilian Federal Senate in 2021. Material examined Holotype BRAZIL • nymph on slide; Roraima , Amajari , Rio Ereu ; 04º02′02.9″ N , 61º23′09.5″ W ; 26 Mar. 2012 ; N. Hamada , P. V . Cruz, G . Dantas and R . Boldrini leg.; INPA . Paratypes BRAZIL – Roraima • 2 nymphs on slide; same collection data as for holotype; INPA • 1 nymph in alcohol 80%; same collection data as for holotype; INPA . Additional material BRAZIL – Rondônia • 1 nymph on slide; Teixeirópolis , Vale das Cachoeiras ; 10º55′20.4″ S , 62º22′34.7″ W ; 3 Sep. 2012 ; R . Boldrini, A.S . Fernandes and N. Hamada leg.; INPA • 1 nymph on slide; same collection data as for preceding, except date 10 Jul. 2018 ; INPA . Fig. 9. Apobaetis luanae sp. nov. , holotype (INPA), habitus of nymph. A . Nymph male (d.v.). B . Nymph male (v.v.). Abbreviations: d.v. = dorsal view; v.v. = ventral view. Not to scale. Description Nymph LENGTH . Body: 3.0– 3.3 mm . HEAD . Antenna: flagellum with minute spines on apex of each flagellomere. Labrum ( Fig. 10A–C ): length 0.6× maximum width; rounded distolateral margins; distal medial margin with three protuberances; dorsal surface with 4 short and simple medial spine-like setae near distal margin, with one row of long, thin and simple setae near distal margin; dorsal surface covered with long, thin and simple setae; ventral surface with one row of robust spine-like setae near distolateral and distal margins; short medial spine-like setae near distal margin. Left mandible ( Fig. 10D–E ): incisors not fused; outer and inner set of incisors with 4 and 3 denticles, respectively; prostheca slender, bifurcated at apical middle; margin between prostheca and mola concave; subtriangular process wide with small protuberance on distal margin and 3 short spine-like setae at base; tuft of setae at base of subtriangular process; denticles of mola not constricted, with 4 prominent denticles in irregular sizes; lateral margin convex. Right mandible ( Fig. 10F ): incisors not fused; outer and inner set of incisors with 3 and 2 denticles, respectively; prostheca slender, bifurcated at apex; margin between prostheca and mola concave; tuft of setae at base of mola absent; denticles of mola not constricted; lateral margin convex. Hypopharynx ( Fig. 10G ): lingua subquadrangular, longitudinally elongated, apex covered with short setae, subequal to superlingua; superlingua oval, longitudinally elongated, with thin setae of different sizes on distolateral and distal margins. Maxilla ( Fig. 10H ): maxillary palp long 2.0 × length of galea-lacinia; segment I subequal to galea-lacinia; segment II with narrow base and apex, with thin and simple setae scattered on surface, without apical constriction; medial margin of galea-lacinia with 2 spine-like setae. Labium ( Fig. 10I ): glossa subtriangular, longer than paraglossa; dorsal surface with one longitudinal row of 8 short spine-like setae on apical ⅔ near inner margin; 1 robust spine-like seta on apex; longitudinal row of 5 robust spine-like setae on apical middle near outer margin; ventral surface covered with long, thin and simple setae. Paraglossa curved inward; dorsal surface with 1 long and robust spine-like seta on apex; longitudinal row of 9 long spine-like setae on apical ⅔ near outer margin and longitudinal row of 3 long and robust spine-like setae on apical middle near inner margin. Labial palp with segment I 0.6× length of segments II and III combined, covered with micropores (not illustrated); segment II with outer margin covered by thin, long and simple setae, inner margin bare; segment II with robust triangular distomedial projection, apically rounded, laterally directed; ventral surface of distomedial projection with tuft thin, long and simple setae; segment III triangular, length subequal to width, covered by thin, long and simple setae on outer margin, dorsally with one row of 8 robust spine-like setae near inner margin, ventrally with one row of 5 robust spine-like setae in near distal margin. THORAX . Holotype pigment ( Fig. 9A–B ): light yellow; femur without mark. Legs ( Fig. 10A–C ). Femur: anterior surface with one row of 4 to 5 minute blunt setae, on basal half, near dorsal margin; ventral margin with one row of 3 to 4 elongated spine-like setae on basal third. Tibia: dorsal margin bare; ventral margin with one row of 6 to 7 spine-like setae. Patella-tibial suture present, from dorsal margin to ventral margin. Tarsus: dorsal margin bare; ventral margin with one row of 10 to 11 spine-like setae; tarsus I 1.2× length of tibia I; tarsi II and III length subequal to tibiae II and III. Claws: two rows of denticles on basal third; claw I 0.6× length of tarsus I; claws II and III 0.7× length of tarsi II and III. ABDOMEN . Holotype pigment ( Fig. 9A–B ): terga II–X covered by light brown marks; cerci and paracercus with medial brown mark. Tergum IV ( Fig. 11D ): surface covered by triangular scale-like projections and micropores; posterior margin with triangular spines, wider than long. Gills ( Fig. 11E ): rounded apex, simple trachea without branches; long length, extending to half third subsequent tergum. Paraproct ( Fig. 11F ) with several marginal spines; posterolateral extension with minute spines. Cerci ( Fig. 11G ) with short spines on all segments; medial brown mark. Paracercus ( Fig. 11H ) without spines; medial brown mark.