taxonID	type	description	language	source
03CD4609AC7BFFADFF2BFAE0CDC8FB12.taxon	description	(Figures 1 – 3)	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7BFFADFF2BFAE0CDC8FB12.taxon	materials_examined	Material examined. Holotype. Male nymph (on slide), BRAZIL, Roraima state, Caracaraí, Balneário Bem-querer, 01 º 55 ′ 46.3 ″ N, 61 º 00 ′ 06.9 ″ W, 25. iii. 2012, colls. Hamada, N., Cruz, P., Dantas, G. and Boldrini, R., INPA. Paratypes: 1 nymph (on slide), same data as holotype; 4 nymphs, same data as holotype; 5 nymphs (on slide), 8 nymphs, Roraima state, Caracaraí, ramal for Balneário Bem-querer, 01 º 56 ′ 01.3 ″ N, 61 º 01 ′ 38.4 ″ W, 21. iii. 2013, colls. Hamada, N., Cruz, P., Dantas, G. and Boldrini, R., INPA.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7BFFADFF2BFAE0CDC8FB12.taxon	description	Description. Mature male nymph. Body: 2.3 – 2.6 mm (1 A – C). Head. Coloration: cream. Antenna. Flagellum with minute spines on apex of each flagellomere. Labrum (Figs. 2 A – B). Length 0.6 × maximum width; distal medial margin slightly concave; dorsal surface with 3 – 4 long and blunt medial setae near distal margin, one row of long, thin, and simple setae arranged parallel to the distal margin and long, thin and simple setae scattered over all surface; ventral surface with one row of robust spine-like setae on distolateral and distal margins. Left mandible (Fig. 2 C). Outer and inner set of incisors with 4 and 3 denticles, respectively; prostheca robust, bifid at apex, outer lobe robust, inner lobe slender with a medial tuft of setae; margin between prostheca and mola concave, wide subtriangular process, with short protuberance on distal margin; tuft of setae at base of subtriangular process; denticles of mola not constricted, with 4 prominent denticles; lateral margin convex. Right mandible (Fig. 2 D). Outer and inner set of incisors with 3 denticles each; prostheca slender, bifid 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. 2 E). Lingua subquadrangular, apex covered by tuft of short setae, length subequal to superlingua; superlingua oval with narrow base, with short and thin setae on distolateral and distal margin. Maxilla (Fig. 2 F). Maxillary palp long, 2.3 × length of galea-lacinia; segment I subequal to galea-lacinia, with prominent palpifer; segment II narrow from base to apex, with thin and simple setae over surface, apex without constriction. Labium (Fig. 2 G – H). Glossa robust from apex to base, subcircular at apex, length subequal to paraglossa; dorsal surface with one longitudinal row of 4 short spine-like setae on apical third, near inner margin, 2 short spine-like setae and 1 thin and simple setae on apex (Fig. 2 H); one longitudinal row of 7 robust spine-like setae on apical half, near outer margin; ventral surface covered by long, thin, and simple setae and 1 minute spine-like setae on apex. Paraglossa curved inward; dorsal surface with one longitudinal row of 12 long spine-like setae on apical half on outer margin and one longitudinal row of 5 – 6 long and robust spine-like setae on apical half near inner margin; ventral surface with one longitudinal row of 5 – 6 long and robust spine-like setae on apical half at middle. Labial palp with segment I robust, 0.8 × length of segments II and III combined, covered by micropores (not illustrated); segment II with outer margin covered by thin, long and simple setae, inner margin bare; distomedial projection of segment II triangular and elongated, with distal margin almost straight, laterally directed; ventral surface of distomedial projection with tuft of thin, long and simple setae; segment III rectangular, with distal margin slightly concave, length 0.6 × width, covered by thin, long and simple setae on outer margin, dorsally with one row of 8 to 10 robust spine-like setae in different sizes near distal margin, ventrally with one row of 7 to 8 robust spine-like setae in different sizes near distal margin. Thorax. Pigmentation (Figs. 1 A – C). Cream, legs without marks. Foreleg (Figs. 3 A – B). Femur. Anterior surface with one row of 6 to 7 short, concave and blunt setae near dorsal margin; apex with 2 short, concave and blunt setae; ventral margin with one row of 9 to 10 spine-like setae in different sizes on basal 2 / 3. Tibia. Dorsal margin bare; ventral margin with one row of 9 to 11 spine-like setae. Patella-tibial suture present, from dorsal to ventral margin. Tarsus. Dorsal margin bare; ventral margin with one row of 10 to 11 spine-like setae. Tarsal claw. 0.7 – 0.8 × length of tarsus, row of denticles absent. Middle and hind legs similar to foreleg. Abdomen. Pigmentation (Figs. 1 A – C). Cream, tergum V with lateral brown mark. Terga (Fig. 3 C). Sculpting of abdominal terga in form of triangular scale-like; tergal surface covered by micropores. Tergum IV (Fig. 3 C). Posterior margin with triangular pointed spines longer than wider. Gills (Fig. 3 D). Triangular apex, conspicuous trachea; long, extending to the beginning of third subsequent tergum. Paraproct (Fig. 3 G). Ten to eleven marginal spines; posterolateral extension with blunt spines. Cerci (Fig. 3 E). Lateral short spines on all segments. Paracercus (Fig. 3 F). Lateral short spines on alternate segments. Imago: Unknown.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7BFFADFF2BFAE0CDC8FB12.taxon	etymology	Etymology. The specific name is a tribute to Dr. Ester Cerdeira Sabino, a Brazilian immunologist from the Instituto de Medicina Tropical from São Paulo, who led the team that carried out the complete sequencing of the genome of the coronavirus (SARS-CoV 2) in 48 hours after the first confirmed case in Latin America. Noun in the genitive case.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7BFFADFF2BFAE0CDC8FB12.taxon	diagnosis	Diagnosis. Mature nymph. 1) Distal medial margin of labrum slightly concave (Fig. 2 A); 2) dorsal surface of labrum with 3 – 4 long and blunt medial setae near distal margin (Figs. 2 A – B); 3) lingua subquadrangular, apical tuft of setae present, length subequal to superlingua (Fig. 2 E); 4) maxillary palp long, 2.3 × length of galea-lacinia, with prominent palpifer; segment II without apical constriction (Fig. 2 F); 5) segment II of labial palp with triangular and elongated distomedial projection; segment III subretangular, with distal margin slightly concave (Fig. 2 G); 6) glossa robust, from apex to base, subcircular at apex, length subequal to paraglossa (Fig. 2 G); 7) anterior surface of foreleg with one row of 6 – 7 short, concave and blunt setae near dorsal margin of femur; 8) claw 0.7 – 0.8 × length of tarsus, without row of denticles (Figs. 3 A – B); 9) posterior margin of tergum IV with triangular pointed spines, longer than wider (Fig. 3 C); 10) paraproct with several marginal spines, posterolateral extension with blunt spines (Fig. 3 G).	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7FFFA1FF2BFAA8CC41FC8A.taxon	description	(Figures 4 – 6)	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7FFFA1FF2BFAA8CC41FC8A.taxon	materials_examined	Material examined. Holotype. Male nymph (on slide), BRAZIL, Amapá, Oiapoque, BR 156, 51 º 49 ′ 55.7 ″ W, 03 º 50 ′ 38.4 ″ N, 10. viii. 2011, colls. Pes, A., Cruz, P., Fernandes, A. and Hamada, N., INPA.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7FFFA1FF2BFAA8CC41FC8A.taxon	description	Description. Mature male nymph. Body: 2.2 mm (4 A – C). Head. Coloration: cream. Antennas broken. Labrum (Figs. 5 A – B). Length 0.5 × maximum width; distal medial margin straight; dorsal surface with 3 – 4 blunt medial setae near distal margin, one row of long, thin, and simple setae arranged parallel to the distal margin and long, thin and simple setae scattered over all surface; ventral surface with one row of robust spine-like setae on distolateral and distal margins. Left mandible (Fig. 5 C). Outer and inner set of incisors with 4 and 3 denticles, respectively; prostheca robust, bifid at apex, outer lobe robust, inner lobe slender with a medial tuft of setae; margin between prostheca and mola concave, wide subtriangular process, with short protuberance on distal margin; tuft of setae at base of subtriangular process; denticles of mola not constricted, with 3 prominent denticles; lateral margin convex. Right mandible (Fig. 5 D). Outer and inner set of incisors with 3 and 2 denticles respectively; prostheca slender, bifid at apex, pectinated on outer margins; margin between prostheca and mola concave; tuft of setae at base of mola absent; denticles of mola not constricted; lateral margin convex. Hypopharynx (Fig. 5 E). Lingua subquadrangular, apex covered by tuft of short setae, length subequal to superlingua; superlingua oval not expanded, with short and thin setae on distolateral and distal margin. Maxilla (Fig. 5 F). Maxillary palp long, 2.2 × length of galea-lacinia, narrow from base to apex; segment I 0.8 × length of galea-lacinia; segment II with thin and simple setae over surface, apex without constriction. Labium (Fig. 5 G – H). Glossa robust from apex to base, subquadrangular at apex, longer than paraglossa, inner margin without setae; dorsal surface with 1 minute spine-like setae near inner margin, 2 short spine-like setae and 2 thin and simple setae on apex (Fig. 5 H); one longitudinal row of 6 robust spine-like setae on apical half, near outer margin; ventral surface covered by long, thin, and simple setae. Paraglossa curved inward; dorsal surface with one longitudinal row of 11 long spine-like setae on apical half on outer margin and one longitudinal row of 6 robust and long spine-like setae on apical half near inner margin; ventral surface with one longitudinal row of 7 long and robust spine-like setae on apical half at middle. Labial palp with segment I robust, 0.8 × length of segments II and III combined, covered by micropores (not illustrated); segment II with outer margin covered by thin, long and simple setae, inner margin bare; distomedial projection of segment II triangular and elongated, laterally directed; ventral surface of distomedial projection with tuft of thin, long and simple setae; segment III rectangular, with distal margin concave, length 0.4 × width, covered by thin, long and simple setae on outer margin, dorsally with one row of 11 robust spine-like setae in different sizes near distal margin, ventrally with one row of 8 robust spine-like setae in different sizes near distal margin. Thorax. Pigmentation (Figs. 4 A – C). Cream, with light brown sublateral spot on pronotum and mesonotum, light brown spot on base of forewing pads; legs with brown spot at base 1 / 3 apical on anterior margin of femur. Foreleg (Figs. 6 A – B). Femur. Dorsal surface with one row of 8 short, concave and blunt setae; apex with 2 short, concave and blunt setae; anterior surface with one row of 5 short and concave setae on basal third; ventral margin with one row of 9 spine-like setae in different sizes; posterior surface with one row of 9 spine-like setae in different sizes near ventral margin. Tibia. Dorsal margin bare; ventral margin with one row of 13 spine-like setae. Patella-tibial suture present, restricted to ventral margin. Tarsus. Dorsal margin bare; ventral margin with one row of 14 spine-like setae. Tarsal Claw. 0.8 × length of tarsus, row of denticles absent. Middle and hind legs similar to foreleg. Abdomen. Pigmentation (Figs. 4 A – C). Cream, tergum II with medial brown mark; tergum V with lateral brown mark; sterna I – VIII with anterolateral brown mark; sternum IX with brown mark on anterior margin. Terga (Fig. 6 C). Sculpting of abdominal terga in form of shallow triangular scale-like; tergal surface covered by micropores. Tergum IV (Fig. 6 C). Posterior margin with triangular pointed spines longer than wide. Gills (Fig. 6 D). Triangular apex, conspicuous trachea; long, extending to beginning of third subsequent tergum. Paraproct (Fig. 6 E). Eleven marginal spines; posterolateral extension without spines. Cerci (Fig. 6 F). Lateral short spines on all segments. Paracercus (Fig. 6 G). Lateral short spines on alternate segments. Imago: Unknown.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7FFFA1FF2BFAA8CC41FC8A.taxon	etymology	Etymology. The specific name is a tribute to Dr Daniela Trivella, a scientific coordinator of the Laboratório Nacional de Biociências do Centro Nacional de Pesquisa em Energia e Materiais (LNBio-CNPEM) from São Paulo. During the pandemic, she coordinated the COVID- 19 task force, which included studies of SARS-CoV- 2 of proteins. Noun in the genitive case	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC7FFFA1FF2BFAA8CC41FC8A.taxon	diagnosis	Diagnosis. Mature nymph. 1) Distal medial margin of labrum straight (Fig. 5 A); 2) dorsal surface of labrum with 3 – 4 short and blunt medial setae near distal margin (Figs. 5 A – B); 3) lingua subquadrangular, apical tuft of setae present, length subequal to superlingua (Fig. 5 E); 4) maxillary palp long, 2.2 × length of galea-lacinia; segment II slender from base to apex, without apical constriction (Fig. 5 F); 5) segment II of labial palp with triangular and elongated distomedial projection; segment III subretangular, with distal margin concave (Fig. 5 G); 6) glossa robust, from apex to base, subquadrangular at apex, longer than paraglossa (Fig. 5 G); 7) dorsal margin of foreleg with one row of 8 short, concave and blunt setae of femur; 8) claw 0.8 × length of tarsus, without row of denticles (Figs. 6 A – B); 9) posterior margin of tergum IV with triangular pointed spines, longer than wider (Fig. 6 C); 10) paraproct with several marginal spines, posterolateral extension without spines (Fig. 6 E).	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC73FFA5FF2BFC10CA49FD53.taxon	description	(Figures 7 – 9)	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC73FFA5FF2BFC10CA49FD53.taxon	materials_examined	Material examined. Holotype. Famale nymph (on slide), BRAZIL, Roraima, Pacaraima, Rio Ereu, 04 º 02 ′ 02.9 ″ N, 61 º 23 ′ 09.5 ″ W, 26. iii. 2012, Colls. Hamada, N., Cruz, P., Dantas, G. and Boldrini, R., INPA. Paratype: Nymph (on slide), same data as holotype, INPA.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC73FFA5FF2BFC10CA49FD53.taxon	description	Description. Mature female nymph. Body: 2.8 – 3.1 mm (7 A – C). Head. Coloration: cream. Antenna. Flagellum with minute spines on apex of each flagellomere. Labrum (Figs. 8 A – B). Length 0.6 × maximum width; distal medial margin slightly concave; dorsal surface with 2 short and blunt medial setae near distal margin, one row of long, thin, and simple setae arranged parallel to the distal margin and long, thin and simple setae scattered over all surface; ventral surface with one row of robust spine-like setae on distolateral and distal margins. Left mandible (Fig. 8 C). Outer and inner set of incisors with 4 and 2 denticles, respectively; prostheca robust, bifid at apex, outer lobe robust, inner lobe slender with a medial tuft of setae; margin between prostheca and mola concave, wide subtriangular process, with short protuberance on distal margin; tuft of setae at base of subtriangular process; denticles of mola not constricted, with 4 prominent denticles; lateral margin convex. Right mandible (Fig. 8 D). Outer and inner set of incisors with 3 and 2 denticles, respectively; prostheca slender, bifid 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. 8 E). Lingua subquadrangular, apex covered by tuft of short setae, length subequal to superlingua; superlingua oval not expanded, with short and thin setae on distolateral and distal margin. Maxilla (Fig. 8 F). Maxillary palp long, 2.0 × length of galea-lacinia; segment I robust, subequal to galea-lacinia; segment II robust from base to apex, with thin and simple setae over surface, apex without constriction. Labium (Fig. 8 G – H). Glossa slender, apically round, progressively narrowing towards the base, longer than paraglossa; dorsal surface with one longitudinal row of 3 short spine-like setae on apical third, near inner margin, and 1 thin and simple setae on apex (Fig. 8 H); one longitudinal row of 8 robust spine-like setae on apical half, near outer margin; ventral surface covered by long, thin, and simple setae. Paraglossa curved inward; dorsal surface with one longitudinal row of 10 long spine-like setae on apical half on outer margin and one longitudinal row of 5 long and robust spine-like setae on apical half near inner margin; ventral surface with one longitudinal row of 5 long and robust spine-like setae on apical half at middle. Labial palp with segment I robust, 0.6 × length of segments II and III combined, covered by micropores (not illustrated); segment II with outer margin covered by thin, long and simple setae, inner margin bare; distomedial projection of segment II triangular and elongated, 1.2 × longer than segment III, apically directed; ventral surface of distomedial projection covered by long, thin, and simple setae; segment III rectangular, with straight distal margin, length subequal wide, covered by thin, long and simple setae on outer margin, dorsally with one row of 11 to 14 spine-like setae in different sizes near distal margin, ventrally with one row of 10 to 12 spine-like setae in different sizes near distal margin. Thorax. Pigmentation (Figs. 7 A – C). Cream, with light brown sublateral spot on pronotum; light brown spot over mesonotum; light brown forewing pads; legs with brown spot at base 1 / 3 apical on anterior margin of femur. Foreleg (Figs. 9 A – B). Femur. Posterior surface with one row of 6 to 8 minute and blunt setae near dorsal margin; ventral margin with one row of 6 to 8 spine-like setae in different sizes. Tibia. Dorsal margin bare; ventral margin with one row of 7 to 8 spine-like setae. Patella-tibial suture present, from dorsal to ventral margin. Tarsus. Dorsal margin bare; ventral margin with one row of 8 to 9 spine-like setae. Tarsal claw. 0.6 – 0.8 × length of tarsus, row of denticles absent. Middle and posterior leg similar to foreleg. Abdomen. Pigmentation (Figs. 7 A – C). Cream, terga II and III with medial brown mark; tergum V with sublateral brown mark; tergum IX almost completely covered by light brown spot; lateral mark view dorsoventrally on terga II from terga VIII; sterna VI and VIII with antero-sublateral brown mark; sternum IX with brown mark on anterior margin. Terga (Fig. 9 C). Sculpting of abdominal terga in form of triangular scale-like; tergal surface covered by micropores. Tergum IV (Fig. 9 C). Posterior margin with triangular spines in irregular apex and sizes. Gill (Fig. 9 D). Triangular apex, conspicuous trachea; long, extending to beginning of third subsequent tergum. Paraproct lost. Cerci (Fig. 9 E). Lateral short spines on all segments; light brown mark in three consecutive segments, alternating on all extension. Paracercus (Fig. 9 F). Lateral short spines on all segments. Imago: Unknown.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC73FFA5FF2BFC10CA49FD53.taxon	etymology	Etymology. The specific name is a tribute to the researcher Dr. Margareth Dalcolmo. Winner of the Jabuti Award (the most traditional literature award in Brazil) in the Science category with the book: ‘ Um tempo para não esquecer: a visão da ciência no enfrentamento da pandemia do coronavírus e o futuro da saúde. ’ Noun in the genitive case.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC73FFA5FF2BFC10CA49FD53.taxon	diagnosis	Diagnosis. Mature nymph. 1) Distal medial margin of labrum slightly concave (Figs. 8 A); 2) dorsal surface of labrum with 2 short and blunt medial setae near distal margin (Figs. 8 A – B); 3) lingua subquadrangular, apical tuft of setae present, length subequal to superlingua (Fig. 8 E); 4) maxillary palp long, 2.0 × length of galea-lacinia; segment II without apical constriction (Fig. 8 F); 5) segment II of labial palp with triangular and elongated distomedial projection, 1.2 × longer than segment III; segment III retangular, with straight distal margin (Fig. 8 G); 6) glossa slender, apically round, progressively narrowing towards the base, longer than paraglossa (Fig. 8 G); 7) posterior surface of foreleg with one row of 6 to 8 minute and rounded setae near dorsal margin of femur (Fig. 9 A – B); 8) claw 0.6 – 0.8 × length of tarsus, without row of denticles (Figs. 9 A); 9) posterior margin of tergum IV with triangular spines in irregular apex and sizes (Fig. 9 C).	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC77FFB9FF2BFD68CC86FDB7.taxon	description	(Figures 10 – 12)	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC77FFB9FF2BFD68CC86FDB7.taxon	materials_examined	Material examined. Holotype. Female nymph (on slide), BRAZIL, Rondônia, Nova Londrina, Rio Urupá, 11 º 02 ′ 05.8 ″ S, 62 º 08 ′ 34.1 ″ W, 25. viii. 2016, colls. Hamada, N. and Cruz, P. V., INPA.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC77FFB9FF2BFD68CC86FDB7.taxon	description	Description. Mature female nymph. Body: 2.4 mm (10 A – C). Head. Coloration: cream. Antenna. Flagellum with minute spines on apex of each flagellomere. Labrum (Figs. 11 A – B). Length 0.7 × maximum width; distal medial margin slightly concave; dorsal surface with 3 short and blunt medial setae near distal margin, one row of long, thin, and simple setae arranged parallel to the distal margin and long, thin and simple setae scattered over all surface; ventral surface with one row of robust spine-like setae on distolateral and distal margins. Left mandible (Fig. 11 C). Outer and inner set of incisors with 3 denticles each; prostheca robust, bifid at apex, outer lobe robust, inner lobe slender with a medial tuft of setae; margin between prostheca and mola concave, wide subtriangular process with short protuberance on distal margin; tuft of setae at base of subtriangular process; denticles of mola not constriction, with 3 elongated prominent denticles; lateral margin convex. Right mandible (Fig. 11 D). Outer and inner set of incisors with 3 and 2 denticles, respectively; prostheca slender, bifid at apex; margin between prostheca and mola concave; tuft of setae at base mola absent; denticles of mola not constricted; lateral margin convex. Hypopharynx (Fig. 11 E). Lingua subquadrangular, with slight apical emargination, apex covered by tuft of short setae, slightly smaller than superlingua; superlingua oval not expanded, with short and thin setae on distolateral and distal margin. Maxilla (Fig. 11 F). Maxillary palp long, 1.8 × length of galea-lacinia; segment I 0.8 × length of galea-lacinia; segment II narrow slight from base to apex, with thin and simple setae over surface, apex without constriction. Labium (Fig. 11 G – H). Glossa robust from apex to base, subtriangular at apex, longer than paraglossa, inner margin without setae; dorsal surface with one longitudinal row of 3 short spine-like setae near inner margin on apex (Fig. 11 H); one longitudinal row of 7 robust spine-like setae on apical half, near outer margin; ventral surface covered by long, thin, and simple setae. Paraglossa curved inward; dorsal surface with one longitudinal row of 9 long spine-like setae on apical half on outer margin and one longitudinal row of 6 long and robust spine-like setae on apical half near inner margin; ventral surface with one longitudinal row of 4 long and robust spine-like setae on apical half at middle. Labial palp with segment I robust, 0.8 × length of segments II and III combined, covered by micropores (not illustrated); segment II with outer margin covered by thin, long, and simple setae, inner margin bare; distomedial projection of segment II triangular and slender, apically directed; ventral surface of distomedial projection with tuft of thin, long, and simple setae; segment III subtriangular, with inner margin reduced, but present, length 0.6 × width, covered by thin, long, and simple setae on outer margin, dorsally with one row of 4 robust spine-like setae in different sizes near distal margin, ventrally with 12 robust spine-like setae in different sizes on over surface. Thorax. Pigmentation. (Figs. 10 A – C). Cream, with discreet light-brown marks scattered over mesonotum and forewing pads, legs without marks. Foreleg (Figs. 12 A – B). Femur. Dorsal margin, anterior and posterior surface without setae; ventral margin with one row of 9 elongated spine-like setae on 2 / 3 basal. Tibia. Dorsal margin bare; ventral margin with one row of 10 spine-like setae. Patella-tibial suture present, restricted to ventral margin. Tarsus. Dorsal margin bare; ventral margin with one row of 14 spine-like setae. Tarsal claw. 0.6 × length of tarsus, two row of minute denticles on 2 / 3 basal present. Middle and posterior legs similar to foreleg. Abdomen. Pigmentation (Figs. 10 A – C). Cream, terga I – X with light brown medial mark; terga II – IX with posterior margin light cream; tergum X light cream; sterna IV – IX with posterior margin light cream; tergum X light cream. Terga (Fig. 12 C). Sculpting of abdominal terga in form of rounded scales; tergal surface covered by micropores. Tergum IV (Fig. 12 C). Posterior margin with minute blunt spines. Gill (Fig. 12 D). Rounded apex, wider than base, conspicuous trachea; long, extending to beginning of fourth subsequent tergum. Paraproct (Fig. 12 E). Without marginal and posterolateral spines. Cerci (Fig. 12 F). Lateral short spines on all segments. Paracercus (Fig. 12 G). Without spines. Imago: Unknown.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC77FFB9FF2BFD68CC86FDB7.taxon	etymology	Etymology. The specific name is a tribute to Dr. Nísia Verônica Trindade Lima, president of the Fundação Oswaldo Cruz from Rio de Janeiro, which coordinated, among other projects, the clinical trials of the vaccine developed by the University of Oxford and the pharmaceutical company AstraZeneca in Brazil. Noun in the genitive case.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC77FFB9FF2BFD68CC86FDB7.taxon	diagnosis	Diagnosis. Mature nymph. 1) Distal medial margin of labrum slightly concave (Fig. 11 A); 2) dorsal surface of labrum with 3 short and blunt medial setae near distal margin (Figs. 11 A – B); 3) lingua subquadrangular, with slightly apical emargination, apical tuft of setae present, slightly smaller than superlingua (Fig. 11 E); 4) maxillary palp long, 1.8 × length of galea-lacinia; segment II without apical constriction (Fig. 11 F); 5) segment II of labial palp with triangular and slender distomedial projection; segment III subtriangular, with inner margin reduced, but present (Fig. 11 G); 6) glossa robust, from apex to base, subtriangular at apex, longer than paraglossa (Fig. 11 G); 7) dorsal margin, anterior and posterior surface of foreleg without setae on femur; 8) claw 0.6 × length of tarsus, with two row of minute denticles on 2 / 3 basal (Figs. 12 A – B); 9) posterior margin of tergum IV with rounded minute spines (Fig. 12 C); 10) paraproct without marginal spines, posterolateral extension without spines (Fig. 12 E).	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC6BFFBCFF2BFD0CC92FFD26.taxon	description	(Figures 13 – 14)	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC6BFFBCFF2BFD0CC92FFD26.taxon	materials_examined	Material examined. Holotype. Mature nymph (on slide), BRAZIL, Piauí, Rio Grande do Piauí, Povoado Araticum, 7 º 46 ′ 41.66 ″ S, 43 º 08 ′ 14.21 ″ W, 31. v. 2011, colls. Hamada, N., Cruz P. V. and Querino R. B., INPA. Paratype: Nymph (on slide), same data as holotype, INPA.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC6BFFBCFF2BFD0CC92FFD26.taxon	description	Description. Mature nymph. Head. Antenna. Flagellum with minute spines on apex of each flagellomere. Labrum (Figs. 13 A – B). Length 0.5 × maximum width; distal medial margin slightly convex; dorsal surface with 4 bifid and long medial spine-like setae near distal margin, one row of long, thin and simple setae arranged parallel to the distal margin and long, thin, and simple setae scattered over all surface; ventral surface with one row of robust spine-like setae on distolateral and distal margins. Left mandible (Fig. 13 C). Outer and inner set of incisors with 3 denticles each; prostheca robust, bifid at apex, outer lobe robust, inner lobe slender with a medial tuft of setae; margin between prostheca and mola concave, wide subtriangular process with short protuberance on distal margin; tuft of setae at base of subtriangular process; denticles of mola not constricted, with 3 elongated denticles; lateral margin convex. Right mandible (Fig. 13 D). Outer and inner set of incisors with 3 and 2 denticles, respectively; prostheca slender, bifid 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. 13 E). Lingua subquadrangular, apex covered by tuft of short setae, length subequal to superlingua; superlingua oval with narrow base, with thin setae on distolateral and distal margin. Maxilla (Fig. 13 F). Maxillary palp long, 1.5 × length of galea-lacinia; segment I robust 0.6 × length of galea-lacinia; segment II with thin and simple setae over surface, apex without constriction. Labium (Fig. 13 G). Glossa robust, from apex to base, subtriangular at apex (Fig. 13 H), length subequal to paraglossa; dorsal surface with one longitudinal row of 7 short spine-like setae on apical half, near inner margin, 1 thin and long spine-like setae on apex one longitudinal row of 6 robust spine-like setae on apical half near to outer margin; ventral surface covered by long, thin, and simple setae. Paraglossa curved inward; dorsal surface with one longitudinal row of 13 long spine-like setae on apical half on outer margin and one longitudinal row of 4 robust and long spine-like setae on apical half near inner margin; ventral surface with one longitudinal row of 4 long and robust spine-like setae on apical half at middle. Labial palp with segment I robust, 0.8 × length of segments II and III combined, covered by micropores (not illustrated); segment II with outer margin covered by thin, long and simple setae, inner margin bare; distomedial projection of segment II robust and triangular apically, laterally directed; ventral surface of distomedial projection with tuft thin, long, and simple setae; segment III triangular, with length subequal to width, with slightly detached apex, covered by thin, long and simple setae on outer margin, dorsally with row of 6 to 7 robust spine-like setae in different sizes near to inner margin, ventrally with row of 6 to 8 robust spine-like setae in different sizes near inner margin. Thorax. Legs (Figs. 14 A – C). Femur. Anterior surface with one row of 6 spine-like setae in different sizes on basal half near ventral margin; posterior surface with one row of 7 spine-like setae in different sizes on basal half near ventral margin; posterior surface with one row of 5 minute blunt setae on 2 / 3 basal near dorsal margin. Tibia. Dorsal margin bare; ventral margin with one row of 12 to 14 short spine-like setae. Patella-tibial suture present, restricted to ventral margin. Tarsus. Dorsal margin bare; ventral margin with one row of 11 to 13 short spine-like setae; tarsus I 1.2 × longer than tibia; tarsi II and III length subequal to tibia. Tarsal claw. claw I 0.6 × length of tarsus I; claws II and III 0.8 × length of tarsi; two row of minute denticles almost imperceptible on basal half. Slide without terga, sterna and gill. Abdomen. Paraproct (Fig. 14 D). Twelve marginal spines; posterolateral extension with triangular pointed spines. Cerci (Fig. 14 E). Lateral short spines on all segments. Paracercus (Fig. 14 F). Without spines. Imago: Unknown.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC6BFFBCFF2BFD0CC92FFD26.taxon	etymology	Etymology. The specific name is a tribute to Dr. Daniela Mulari, first woman to head the Department of Clinical Sciences at the Liverpool School of Tropical Medicine in the United Kingdom, coordinating the centers that study the effectiveness of the vaccine against COVID- 19 developed by the University of Oxford and the pharmaceutical company AstraZeneca. Noun in the genitive case.	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
03CD4609AC6BFFBCFF2BFD0CC92FFD26.taxon	diagnosis	Diagnosis. Mature nymph. 1) Distal medial margin of labrum slightly convex (Figs. 13 A); 2) dorsal surface of labrum with 4 bifid and elongated medial spine-like setae near distal margin (Figs. 13 A – B); 3) lingua subquadrangular, apical tuft of setae present, length subequal to superlingua (Fig. 13 E); 4) maxillary palp long, 1.5 × length of galea-lacinia; segment II without apical constriction (Fig. 13 F); 5) segment II of labial palp with triangular distomedial projection; segment III triangular, with slightly detached apex (Fig. 13 G); 6) glossa robust, from apex to base, subtriangular at apex, length subequal to paraglossa (Fig. 13 G); 7) posterior surface of foreleg with one row of 5 minute blunt setae on 2 / 3 basal near dorsal margin of femur; tarsus I 1.2 × longer than tibia (Fig. 14 A); 8) claw I 0.6 × length of tarsus, claw II and III 0.8 × length of tarsus; two row of minute denticles almost imperceptible on basal half of the all claws (Fig. 14 A); 9) paraproct with several spines, posterolateral extension with triangular pointed spines (Fig. 14 D).	en	De Lima, Claudia R. T., Cruz, Paulo Vilela, Hamada, Neusa (2024): Five new species of Apobaetis Day (Ephemeroptera: Baetidae) and updated key to nymphs. Zootaxa 5397 (1): 91-115, DOI: 10.11646/zootaxa.5397.1.5, URL: http://dx.doi.org/10.11646/zootaxa.5397.1.5
