taxonID	type	description	language	source
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	description	(Figs 2 A – E, 3 A – C).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	diagnosis	Diagnosis: Miroculis (Miroculis) botafora sp. nov. can be distinguished from the other species of the genus by the following combination of characteristics. In the male: 1) dorsal portion of compound eyes on a short stalk (0.5 × longer than wide); 2) dorsal portion of compound eyes with eight facets on the longest row (Figs 2 B – C); 3) hyaline wings, with poorly developed hind wing costal projection; 4) fore- and hind wing with membrane hyaline (Figs 2 A, C); 5) styliger plate with a deep medial excavation (Fig. 2 D); 6) inner margin with a subdistomedial projection on apical ¼; 7) penes length approximately 1.8 × length of forceps segment I, tubular and with apex slightly curved upward (Figs 2 D, 2 E, 3 C). Descriptions. Male imago (Figs 2 A – E, 3 A – C).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	description	Measurements. Body: 5.50 mm; forewing: 5.20 mm; angularity of CuA portion: 98 °; hind wing: 1.40 mm. Foreleg: broken off and missing. Caudal filament: broken off and missing. Ratios. Wings: forewing width 0.4 × fore wing length; hind wing length 0.3 fore wing length; hind wing width 0.5 × hind wing length; fork on MA 2 of fore wing 0.5 × total length of MA. Legs: broken off and missing. Genitalia: medial length of styliger plate 1.3 × maximum width; lateral length of styliger plate 0.9 × medial length of styliger plate. Forceps segment III 0.6 × forceps segment II; forceps segment III 0.3 × forceps segment I; forceps segment II 0.5 × forceps segment I. Penes length approximately 1.8 × forceps segment I. Coloration. General coloration: brown. Head. light brown. Compound eye with stalk orange, lighter toward apex; facets of upper portion light brown, separated by black grooves (Figs 2 A – C). Ocelli white, surrounded with dark gray. Antenna translucent whitish. Thorax (Figs 2 A, C). Pro-, meso- and metanotum brown. Pleura and sterna light brown. Wings (Figs 2 A, C). Fore- and hind wing with hyaline membrane; cross and longitudinal veins brown. Legs: broken off and missing. Abdomen (Figs 2 A, C). Terga translucent light brown with blackish marks on medial area of all segments; terga I to VI translucent washed with light brown, terga VI to IX brownish; terga I to VI with sublateral dark brown transversal band. Sterna translucent light brown (Fig. 2 A). Genitalia (Figs 2 D, E). Styliger plate brownish translucent. Forceps segment I washed with grayish brown, darker toward apex; segments II and III washed with grayish brown. Penes dark brown. Caudal filaments: broken off and missing. Morphology. Head. Posterior margin straight. Compound eye with upper portion on stalk of short length (0.5 × longer than wide), separated from each other by distance subequal to maximal width of upper portion; dorsal surface circular, with eight facets in longest row (Figs 2 B – C). Thorax. Wings: forewing with 3 cross veins basal to bulla between C and Sc; MP 2 not connected to base of MP 1 by cross vein; IMP connected to MP 1 at base; CuA connected to CuP by one cross vein; ICu 1 and ICu 2 not connecting by cross vein; two A veins (Fig. 3 A). Hind wing with fork of R + MA asymmetric; CuP present; costal projection poorly developed; distal margin slightly acute (Fig. 3 B). Abdomen. Genitalia: posterior margin of styliger plate with deep medial excavation. Forceps segment I narrowing gradually toward apex; inner margin with a subdistomedial projection on apical ¼ (Fig. 2 D). Penes long, tubular, wider at base, narrowing gradually toward apex; presenting gonopore almost completely fused, with ventral sulcus in apical half of each lobe; apically curved upward (Figs 2 D, E, 3 C). Female imago and nymph. Unknown.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	etymology	Etymology. The name botafora is a reference to the type locality, the Bota Fora waterfall. Noun in apposition.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	distribution	Distribution. Brazil: Piauí State.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	materials_examined	Type material. Holotype: Ô imago Brazil, Piauí State, Piripiri municipality, Cachoeira do Bota Fora, S 4 ° 12 ′ 51.1 ′′, W 41 ° 40 ′ 01.7 ′′, 162 m, 14. x. 2017, Lima, R. C. L. col. (UFVB).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B5EFFB8FF53EFD7FDABFEF1.taxon	discussion	Comments. Miroculis (Miroculis) botafora sp. nov. is morphologically similar to Miroculis fazzariensis Costa & Mariano 2013, mainly because both have a longitudinal groove connecting to the opening of gonopore. In M. (M.) botafora sp. nov., the gonopore groove is present from the apical half of each lobe, while in M. fazzariensis it is restricted to the apex of the penes. Besides, the penes length of the new species is 1.8 × the forceps segment I, opposed 0.8 to 1.0 × in M. fazzariensis.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	description	(Figs 4 A – E, 5 A – E, 6 A – D, 7 A – F, 8 A – D).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	diagnosis	Diagnosis: Miroculis (Miroculis) azevedoi sp. nov. can be distinguished from the other species of the genus by the following combination of characteristics. In the nymph: 1) labrum with anterolateral margin angular (Fig. 7 A); 2) posterolateral spines on abdominal segments V – IX, more developed from VII to IX (Figs 4 A, C); 3) gills narrow, with the lateral lobes present, and trachea branched (Fig. 4 D). In the male: 1) dorsal portion of compound eyes on a medium stalk (1.2 × longer than wide), with eight facets on the longest row (Figs 4 C); 2) fore- and hind wing with membrane hyaline (Figs 4 A, C); 3) styliger plate with posterior margin slightly concave (Fig. 4 D); 4) penes length approximately 1.6 × length of forceps segment I, tubular (Figs 4 D, E, 5 C, E), apically flattened and rounded in lateral view (Fig. 5 D; medially with a minute spine (Fig. 5 C).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	description	Description. Male imago (Figs 4 A – E, 5 A – E). Measurements (n = 3). Body: 4.9 mm; forewing: 4.8 mm; angularity of CuA portion: 95 °; hind wing: 1.3 mm. Foreleg: 5 mm; mid leg: 2.4 mm; hind leg: 3 mm. Caudal filament: broken. Ratios. Wings: forewing width 0.4 × fore wing length; hind wing length 0.2 fore wing length; hind wing width 0.5 × hind wing length; fork on MA 2 of fore wing 0.4 × total length of MA. Legs: segments of foreleg: 0.73: 1.00 (1.75 mm): 0.03: 0.35: 0.25: 0.16: 0.11; mid leg: 1.11: 1.00 (0.9 mm): 0.07: 0.07: 0.06: 0.09: 0.08; hind leg: 0.94: 1.00 (1.22 mm): 0.05: 0.04: 0.04: 0.09: 0.06. Genitalia: medial length of styliger plate 1.5 × maximum width; lateral length of styliger plate 0.9 × medial length of styliger plate. Forceps segment III 0.8 × forceps segment II; forceps segment III 0.4 × forceps segment I; forceps segment II 0.5 × forceps segment I. Penes length approximately 1.6 × the forceps segment I. Coloration. General coloration: brown (dark brown in fresh material). Head. light brown. Compound eye with stalk orange; facets of upper portion orangish, separated by dark grooves (Figs 4 A – C). Ocelli white, surrounded with dark gray. Antenna whitish washed with black. Thorax (Figs 4 A, C). Pro, - meso and metanotum dark brown. Pleura and sterna light brown. Wings (Figs 4 A, C). Fore- and hind wing with hyaline membrane; cross and longitudinal veins brown. Legs: foreleg with coxa and trochanter brown; femur and tibia white washed with brown, femur and tibia with apical blackish band; tarsi white to light brown. Mid and hind legs with trochanter and coxae light brown; dorsal portion of midfemur with median brown mark; tibiae with apical blackish band. Abdomen (Figs 4 A, C). Terga translucent light brown with blackish marks on medial area of segments I – III and VI – VIII; terga I – VI washed with black, tergum VI with medial, triangular blackish mark; terga VII – X light brown (Fig. 4 C). Sterna translucent light brown (Fig. 4 A). Genitalia (Figs 4 D, E). Styliger plate grayish translucent. Forceps segment I gray, whitish on apical area of inner margin; segments II gray with inner margin whitish; and segment III gray, lighter toward at apex. Penes brown. Caudal filament gray. Morphology. Head. Posterior margin straight. Compound eye with upper portion on a stalk of medium length (1.2 × longer than wide), separated from each other by distance subequal to maximal width of upper portion; dorsal surface circular, with eight facets on longest row (Figs 4 A – C). Thorax. Wings: forewing with 2 cross veins basal to bulla between C and Sc; MP 2 connected to base of MP 1 by one cross vein; IMP connected to MP 1 at base; CuA connected to CuP by one cross vein; ICu 1 and ICu 2 not connecting by cross vein; two A veins (Fig. 5 A). Hind wing with fork of R + MA symmetric; CuP present; costal projection poorly developed; distal margin rounded (Fig. 5 B). Abdomen. Genitalia: posterior margin of styliger plate with posterior margin slightly concave. Forceps segment I narrowing gradually toward apex, with constriction at apex, without distomedial projection (Fig. 4 D). Penes long, tubular, wider at base, narrowing gradually toward apex (Figs 4 D, E, 5 C, E); medially with minute spine on lateral view (Fig. 5 C); apically flattened and rounded in lateral view and with apical gonopore on the inner margin of each lobe (Fig. 5 D). Mature nymph (Figs 6 A – D, 7 A – F, 8 A – D). Measurements (n = 1). Body: 4.8 mm. Foreleg: 2.8 mm; mid leg: 3 mm; hind leg: 3.1 mm. Caudal filament: broken. Ratios. Mouthparts: segment III of maxillary palp 0.5 × segment II; segment II 0.7 × segment I; segment III of labial palp 0.3 × segment II; segment III 0.2 × segment I; segment II 0.8 × segment I. Legs: width of forefemur 0.3 × length; width of mid-femur 0.3 × length. Abdomen: width of lamella of gill in its wider part 0.3 × length of gill; length of medial filament of gill 0.6 × length of lamella. Coloration. Body. Brownish. Head: brownish, pale brown marks along epicranial and frontal sutures, grayish between compound eye and lateral ocellus; grayish mark among lateral and medial ocelli and antenna; antenna brown with flagellum grayish (Figs 6 A, B). Labrum brown basally, lighter toward apex. Mandible yellowish brown, darker basally; maxilla, hypopharynx, and labium washed with grayish yellow (Figs 7 A – F). Thorax: pro- and mesonotum brown, except for dark brown marks on sublateral and anteromedial margins (Fig. 6 A). Fore and hind wing pads yellowish brown (Figs 6 A, B). Sterna yellowish, mesosternum with dark brown marks on posterior margin (Fig. 6 C) .. Legs: pale brown. Femora with subapical blackish mark on dorsal surface; tibiae with incomplete blackish band subbasally, and complete brown band apically; tarsi light brown (Figs 8 A – D). Abdomen: terga light brown; terga I – X with longitudinal grayish stripe on anterosubmedial margin; terga I – VIII with dark brown marks along posterior margin (Fig. 6 A). Sterna light brown. Gills with membrane grayish and trachea black (Fig. 6 D). Morphology. Head: clypeus anteriorly concave; anterolateral margin of labrum angular (Fig. 7 A). Legs: subapical denticle of tarsal claws larger than remaining denticles (Fig. 8 D). Abdomen: posterolateral spines on abdominal segments V – IX, more developed from VII to IX (Figs 6 A, C); gills narrow, with lateral lobes present and heavy branched tracheation (Fig. 6 D). Life cycle association. Rearing.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	biology_ecology	Biology. The nymphs were collected inhabiting leaves in a shallow stream with moderate flow and about 1 m wide.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	etymology	Etymology. We name this species in honor of Carlos Augusto Silva de Azevêdo for his friendship and important contribution to the knowledge about aquatic insects in Maranh „ o State.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	distribution	Distribution. Brazil: Maranh „ o State.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	materials_examined	Type Material. Holotype: Ô imago (reared, exuviae and male imago preserved in alcohol), Brazil, Maranhão State, Caxias municipality, Riacho Planaçucar, S 4 ° 54 ′ 24.8 ′′, W 43 ° 21 ′ 45.2 ′′, 71 m, 25. x. 2019, Nascimento, S. R. S. col. (INPA-EPH 000034). Paratypes: two Ô subimagos, same data as holotype (INPA-EPH 000036); one Ô nymph, same data as holotype (INPA-EPH 000035).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B59FFB6FF53EFF3FE1CFC31.taxon	discussion	Comments. Miroculis (Miroculis) azevedoi sp. nov. is morphologically similar to Miroculis (Miroculis) botafora sp. nov. by sharing penes long and wider at base and by having a styliger plate expanded, with posterior margin concave. However, the male imago of M. (M.) azevedoi sp. nov. differs by having a penes apically flattened and rounded in lateral view, with a minute spine medially in ventral view, opposed to the penes presenting a gonopore almost completely fused, with ventral sulcus in the apical half of each lobe and apically curved upward in M. (M.) botafora sp. nov. Besides, in M. (M.) azevedoi sp. nov. the forceps segment I present a constriction at apex and there is no subdistomedial projection on the inner margin. Nymphs of M. (M.) azevedoi sp. nov. resemble those of M. (Atroari) nebulosus Savage, 1987 and M. yulieae Raimundi & Salles, 2017 because of the similarity of their branched gills and tarsal claws with subapical denticle larger than the remaining denticles. However, they differ from each other especially by the color pattern of abdomen and shape of anterolateral margin of labrum: angular in M. (M.) azevedoi sp. nov., rounded in M. nebulosus, and slightly angular in M. yulieae.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	description	(Figs 9 A – E, 10 A – D, 11 A – D, 12 A – F, 13 A – D).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	diagnosis	Diagnosis: Miroculis (Miroculis) quilombola sp. nov. can be distinguished from the other species of the genus by the following combination of characteristics. In the nymph: 1) anterolateral margin of labrum rounded (Fig. 12 A); 2) posterolateral spines present on segment IV or V – IX, more developed on VII – IX (Figs 9 A, C); 3) gills with trachea unbranched, lengths of inner and outer margin of lamella subequal (Fig. 11 D). In the male: 1) dorsal portion of compound eyes on a short stalk (1.2 × longer than wide), with eight facets on the longest row (Figs 9 A – C); 2) fore- and hind wing with membrane hyaline (Figs 9 A, C); 3) posterior margin of styliger plate with a shallow medial excavation (Fig. 9 D); 4) Penes brown approximately the length of forceps segment I, tubular, apically curved and excavated in ventral view, with about ten irregular spines on basal half in lateral view, gonopore on inner margin with ventral sulcus in the apical half (Figs 9 D, E, 10 C, D).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	description	Description. Male imago (Figs 9 A – E, 10 A – D) Measurements (n = 2). Body: 4.5 mm; forewing: 4.4 mm; angularity of CuA portion: 98 °; hind wing: 1 mm. Foreleg: 4.1 mm; mid leg: 2.2 mm; hind leg: 2.4 mm. Caudal filament: broken. Ratios. Wings: forewing width 0.3 × fore wing length; hind wing length 0.2 fore wing length; hind wing width 0.5 × hind wing length; fork on MA 2 of fore wing 0.4 × total length of MA. Legs: segments of foreleg: 0.67: 1.00 (1.48 mm): 0.05: 0.21: 0.17: 0.14: 0.1; mid leg: 1.09: 1.00 (0.81 mm): 0.05: 0.05: 0.05: 0.12: 0.04; hind leg: 0.94: 1.00 (0.93 mm): 0.05: 0.05: 0.08: 0.09: 0.05. Genitalia: medial length of styliger plate 1.3 × maximum width; lateral length of styliger plate 0.7 × medial length of styliger plate. Forceps segment III 0.5 × forceps segment II; forceps segment III 0.25 × forceps segment I; forceps segment II 0.4 × forceps segment I. Penis length approximately 1.06 × forceps segment I. Coloration. General coloration: dark brown. Head. dark brown. Compound eye with stalk orange, facets of upper portion light brown, separated by dark grooves (Figs 9 A – C). Ocelli white, surrounded with dark gray. Antenna, scape whitish, pedicel and flagellum dark gray. Thorax (Figs 9 A, C). Pro, - meso and metanotum dark brown. Pleura dark brown, sterna light brown. Wings (Figs 9 A – C). Fore- and hind wing with hyaline membrane; cross and longitudinal veins brown. Legs: foreleg with coxa and trochanter light brown; femur and tibia white washed with brown, femur and tibia with apical blackish band; tarsi light brown. Mid and hind legs with coxa and trochanter light brown; mid legs with femur and tibia apical blackish band; dorsal portion of midfemur with median brown mark; tibiae with apical blackish band. Abdomen (Figs 9 A – C). Terga light brown with blackish marks on medial area from I – III and VI, VII segments; terga I to VI light brown washed with black, terga VII to IX brown washed with black; terga I to VI with sublateral dark brown transversal band. Sterna light brown (Fig. 9 A). Genitalia (Figs 9 D, E). Styliger plate brownish translucent. Forceps segment I light brown, darker toward apex; segments II gray; and segment III gray, lighter toward at apex. Penis brown. Caudal filament: light brown. Morphology. Head. Posterior margin medially triangular. Compound eye with upper portion on stalk of short length (1.2 × longer than wide), separated from each other by distance subequal to the maximal width of an upper portion; dorsal surface circular, with eight facets in longest row (Figs 9 A – C). Thorax. Wings: forewing with 2 cross veins basal to bulla between C and Sc; MP 2 not connected to base of MP 1 by cross vein; IMP connected to MP 1 at base; CuA connected to CuP by one cross vein; ICu 1 and ICu 2 connected by one cross vein; two A veins (Fig. 10 A). Hind wing with fork of R + MA symmetric; CuP present; costal projection poorly developed; distal margin rounded (Fig. 10 B). Abdomen. Genitalia: posterior margin of styliger plate with shallow medial excavation. Forceps segment I narrowing gradually toward apex (Fig. 9 D). Penis long, tubular, wider at base; medially wider with about ten irregular spines on basal half, narrowing gradually toward apex on lateral view; gonopore on inner margin of each lobe with ventral sulcus in apical half of each lobe; apically curved and excavated in ventral view (Figs 9 D, E, 10 C, D). Mature nymph (Figs 11 A – D, 12 A – F, 13 A – D) Measurements (n = 3). Body: 5.2 mm. Foreleg: 2.8 mm; mid leg: 2.9 mm; hind leg: 3 mm. Caudal filament: broken. Ratios. Mouthparts: segment III of maxillary palp 0.6 × segment II; segment II 0.9 × segment I; segment III of labial palp 0.6 × segment II; segment III 0.6 × segment I; segment II 0.9 × segment I. Legs: width of forefemur 0.3 × length; width of mid-femur 0.3 × length. Abdomen: width of lamella of gill in its wider part 0.3 × length of gill; length of medial filament of gill 0.6 × length of lamella. Coloration. Body. Light brown. Head: dark brown, brown marks along epicranial and frontal sutures, grayish between compound eye and lateral ocellus; grayish mark among lateral and medial ocelli and antenna; antenna brown with flagellum grayish (Figs 11 A, B). Labrum dark brown basally, lighter toward apex. Mandible yellowish brown, darker sub-basally; maxilla, hypopharynx, and labium washed with grayish brown (Figs 12 A – F). Thorax: pro- and mesonotum brown white washed with gray, except for blackish brown marks on sublateral margins of mesonotum. Fore and hind wingpads yellowish brown (Figs 11 A, B). Sterna pale yellow (Fig. 11 C); mesosternum with dark gray marks on posterior margin .. Legs: pale yellow. Femora with subapical blackish mark on dorsal and ventral surfaces; tibiae with incomplete brown band sub-basally, and complete blackish band apically; tarsi washed with light brown (Figs 13 A – D). Abdomen: terga brown; terga I – X with longitudinal grayish brown stripe anterosubmedially, terga I – III washed with gray, terga VII and VIII on submedial margin washed with grayish brown, terga IX and X slightly pale brown (Fig. 11 A). Sterna pale yellow. Gills with membrane grayish and trachea gray (Fig. 11 D). Morphology. Head: clypeus anteriorly concave; anterolateral margin of labrum rounded (Fig. 12 A). Legs: subapical denticle of tarsal claws larger than remaining denticles (Fig. 13 D). Abdomen: posterolateral spines present on segment IV or V – IX, more developed on VII – IX (Figs 9 A, C); gills with trachea unbranched; lengths of inner and outer margin of lamella subequal (Fig. 9 D). Life cycle association. Rearing.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	biology_ecology	Biology. The nymphs were collected inhabiting leaves in a stream with about 6 m wide, moderate flow, and under an open canopy.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	etymology	Etymology. In Brazil, quilombolas are communities of descendants of enslaved Africans who have maintained cultural, religious and subsistence traditions for a few centuries. The new species was found in a stream from the quilombola community S „ o Benedito dos Colocados. Noun in apposition.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	distribution	Distribution. Brazil: Maranh „ o State.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	materials_examined	Type material. Holotype: Ô imago (reared, exuviae and male imago preserved in alcohol), Brazil, Maranhão State, Codó municipality, Rio Saco, S 4 ° 31 ″ 53.9 ″, W 43 ° 54 ′ 49.5 ″, 52 m, 22. viii. 2020, Nascimento, S. R. S. col. (INPAEPH 000037). Paratypes: one Ô imago, same data as holotype (INPA-EPH 000038); three Ô nymph, same data as holotype (INPA-EPH 000039).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B57FFACFF53EDB3FCFCF88F.taxon	discussion	Comments. Male imagos of Miroculis (Miroculis) quilombola sp. nov. are morphologically similar to M. (M.) fittkaui, by sharing similar posteromedian margin of styliger plate expanded with a shallow medial excavation, inner basal margin of forceps segment I corrugated, length and apex excavated of penes (or hooked). However, the male imago of the new species differs by having a forewing less wide basally and with membrane hyaline; penes with ten irregular spines basally in lateral view (Fig. 10 C), opposed to basally with shallow crenulation in M. (M.) fittkaui (Fig. 58 in Savage 1983); and having the inner margin of forceps segment I without distomedial projection (Fig. 9 D). Nymphs of M. (M.) quilombola sp. nov. resemble those of M. (M.) azevedoi sp. nov. because of tarsal claws with subapical denticle larger than the remaining denticles and anterior margin of labrum angular. However, M. (M.) quilombola sp. nov. has the color pattern of the abdomen without marks along the posterior margin on terga and gills with trachea unbranched (Fig. 11 D), opposed to M. (M.) azevedoi sp. nov. that presents dark brown marks on abdominal terga I – VIII and gills with trachea branched.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B4EFFAFFF53EEF6FE39FC6D.taxon	distribution	Distribution. Suriname and Venezuela. Brazil: Bahia (Campos et al. 2016), Espírito Santo (Salles et al. 2010), Pará (Savage & Peters 1983), Pernambuco (Lima et al. 2012) and Roraima (Gama Neto et al. 2018).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B4EFFAFFF53EEF6FE39FC6D.taxon	materials_examined	Material examined. Two Ô imagos Brazil, Piauí State, Batalha municipality, Longá River, Pedra Dela, S 3 ° 54 ′ 51.7 ″, W 42 º 06 ′ 37.8 ″, 68 m, 10. xii. 2015, Lima, L. R. C. col. (CEHJ). One Ô imago Brazil, Piauí State, Alto Longá municipality, Cachoeira da Campeira, S 5 ° 11 ′ 45.1 ′′, W 42 ° 15 ′ 33.9 ′′, 177 m, 04. iii. 2015, Lima, L. R. C. col. (CEHJ). One Ô imago Brazil, Piauí State, Piripiri municipality, Cachoeira do Bota-fora, S 4 ° 12 ′ 51.1 ′′, W 41 ° 40 ′ 01.7 ′′, 162 m, 14. x. 2017, Lima, L. R. C. col. (CEHJ); same data except Five Ô imagos, 10. ii. 2018. Seven Ô imagos Brazil, Piauí State, Barras municipality, Longá River, near bridge at PI- 110, S 4 ° 12 ′ 08.4 ′′, W 42 ° 14 ′ 21.2 ′′, 74 m, 18. iv. 2017, Lima, L. R. C col. (CEHJ). One Ô imago Brazil, Piauí State, Piripiri municipality, Cachoeira do Botafora, S 4 ° 12 ′ 51.1 ′′, W 41 ° 40 ′ 01.7 ′′, 162 m, 14. x. 2017, Lima, L. R. C. col. (CEHJ). One Ô imago Brazil, Piauí State, Piripiri municipality, Cachoeira das Tuncas, Povoado Corrente, S 04 ⁰ 25 ′ 28.5 ′′, W 41 ⁰ 38 ′ 35.2 ′′, 269 m, 29. vi. 2019, Lima, L. R. C. col. (CEHJ). Two Ô imagos Brazil, Piauí State, Pedro II municipality, Riacho Samambaia, acima da Cachoeira do Urubu Rei, S 04 ° 19 ′ 40.6 ′′, W 41 ° 27 ′ 46.4 ′′, 501 m, 18. vi. 2022, Lima, L. R. C col. (CEHJ).	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
0755E8000B4EFFAFFF53EEF6FE39FC6D.taxon	discussion	Comments. The specimens examined fit well with the descriptions given by Savage & Peters (1983) and Savage (1987). Adults and nymphs were collected in stream segments with altitude ranging from 160 to 500 m a. s. l. and with weak current, associated with substrate with leaves deposited on the bottom, in patches of dense and humid forest. The emergence of some adults was observed at 15: 00. With this study, M. fittkaui is reported for the first time from Piauí State.	en	Rodrigues, Jackson A. O., Nascimento, Stênio R. S., Raimundi, Erikcsen A., Lima, Lucas R. C. (2023): New species and new records of Miroculis Edmunds, 1963 (Ephemeroptera: Leptophlebiidae) from Chacoan Domain in northeastern Brazil. Zootaxa 5230 (1): 27-47, DOI: 10.11646/zootaxa.5230.1.2
