taxonID	type	description	language	source
461BA2D26D18529E95FD84B0FB3156D6.taxon	description	Systematic position and characters. Centroptella is characterized by an unusual combination of characters: on one hand, it undoubtedly belongs to the holophyletic taxon Baetovectata Kluge & Novikova, 2011, based on (1) presence of two marginal intercalaries in each space of wing (Fig. 149), (2) narrow and arched gonovectes of the penis (Figs 77 - 80, 141 - 143, 146, 150152) and (3) medially inclined subimaginal gonostyli when they are developing under the larval cuticle (Figs 79, 148). The taxon Baetovectata belongs to the holophyletic taxon Anteropatellata Kluge, 1997, which is characterized by the presence of a patella-tibial suture on the forelegs of the larva and female imago and subimago. On the other hand, the leg structure of Centroptella does not conform with the characteristics of Anteropatellata. The larva of Centroptella has the structure of the tibia modified and different on each pair of legs, so that the patella-tibial suture is absent on forelegs and greatly shifted distally on the middle and hind legs; a row of long setae, which in some other taxa forms a transverse arc, in Centroptella is greatly stretched along the tibia, being different on the fore, middle and hind legs (Figs 16 - 18, 49 - 51, 90 - 92); the female imago and subimago of Centroptella has the usual leg structure, with the patella-tibial suture not shifted distally, but without patella-tibial suture on forelegs. This leg structure is characteristic of the plesiomorphon Protopatellata Kluge & Novikova, 2011 and has striking similarity with the Afrotropical taxon Potamocloeon Gillies, 1990 (= Maliqua Lugo-Ortiz & McCafferty, 1997), which undoubtedly belongs to Protopatellata and has no features of Baetovectata (Kluge 2019). The Neotropical genus Cloeodes Traver, 1938, which some authors have confused with Centroptella (see above), has none of these features, and its larval and imaginal leg structure is typical for Anteropatellata (Kluge 2017). Besides this paradoxical combination of baetovectatan and protopatellatan characters, Centroptella has an evident autapomorphy: secondary swimming setae on the outer sides of the larval cerci in the distal part of the cercus have oval transverse bases and form a regular row (Figs 59, 129 - 131); in this respect, they resemble the primary swimming setae on the inner side of the cercus (Fig. 132), but they are smaller and less densely arranged. Another peculiar character of Centroptella is the presence of a pair of spaced transverse rows of long bifurcate setae on certain abdominal sterna of the larva (Figs 58, 117 - 119); in different species these setal rows are present on sterna II-VI or on part of them, at least on sterna IV-V. Identical setal rows are found in a few other, non-related taxa (e. g., Potamocloeon Gillies, 1990 and Cloeodes Traver, 1938).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
8819B3681AB25884B5D0DF808913432B.taxon	materials_examined	Material examined. Holotype: male larva of last instar, without caudalii, with labels: " VIETNAM, Lam Dong Prov, Da Nhim riv., Duc Trong, 27. X. 1984, T. Soldan ", " Centroptella colorata T. Soldan det. 1985 " and " HOLOTYPE ". Paratypes not found.	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
8819B3681AB25884B5D0DF808913432B.taxon	description	Additional characters. Abdominal tergum IV without denticles on posterior margin, so regular row of denticles present on posterior margin of terga V-IX only. Tergum X without denticles on median part of posterior margin, with one pair of large denticles at sides (as in C. ceylonensis).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
797555B02517533F872A2993D0A8C6C1.taxon	materials_examined	Material examined. Holotype: L-S-I ♂ {specimen [XV] (1) 2015}, THAILAND, Mae-Hong-Son Province, Pai, Mhor-Phaeng Falls, 11. II. 2015, coll. N. Kluge & L. Sheyko (ZIN). Paratypes: the same locality and collectors, 9 - 11. II. 2015: 1 L-S ♂, 2 L-S-I ♀, 2 L / S ♂, 6 larvae (ZIN); Pai, 19 - 25. XI. 2010, coll. K. Tomkovich: 1 I ♂ (ZIN). VIETNAM, Vinn Phu Prov., Suoi Bac Stream, Tam-Dao, 10 - 16.10.1984 T. Soldan: 47 larvae (paratypes of Centroptella liebenauae, including the specimen wrongly labeled as " holotype ", see above) (deposited in Institute of Entomology, BC CAS, Ceske Budejovice).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
797555B02517533F872A2993D0A8C6C1.taxon	etymology	Etymology. This species is named in honour of Ingrid Mueller-Liebenau.	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
797555B02517533F872A2993D0A8C6C1.taxon	description	Descriptions. Larva. Cuticular coloration. Frontal side of head colourless (Fig. 86). Pronotum and mesonotum with contrasting brown, ochre and / or colourless areas, forming characteristic pattern (Figs 83 - 85). Thoracic pleura and metanotum partly brown, partly colourless; sterna colourless (Fig. 89). Each leg with coxa and trochanter colourless; femur either entirely colourless, or with diffuse brown macula in distal part on posterior and / or anterior surfaces; tibia and tarsus with more or less expressed diffuse brown coloration, mainly on outer side; claws brownish (Fig. 89). Abdominal terga with contrasting brown, ochre and / or colourless, areas forming characteristic pattern; most terga with large, paired, transverse blanks, which occupy medioposterior sigilla and stretch laterally from them (Figs 83 - 85). Caudalii colourless at base, diffusely darkened at middle (Fig. 85). Shape and setation. Frontal suture short, nearly semicircular (as in Fig. 55). Labrum equally wide at base and middle, with pair of submedian, long setae, 2 - 3 pairs of sublateral, long setae and pair of long setae between submedian and sublateral ones (Fig. 116). Prostheca of left mandible with 3 blunt processes and 2 - 4 pointed processes (Fig. 144). Prostheca of right mandible directed medially-distally, with short, apical denticles and without long branch; median margin of right mandible proximad of prostheca either without processes, or with small seta-like processes (Fig. 145). Maxillary canines and distal dentiseta stout; distal dentiseta widened, with apex somewhat hooked toward canines (as in Fig. 42). Maxillary palp nearly as long as lacinia, 2 - segmented. Labium with glossae and paraglossae subequal, both narrowed apically (Fig. 124). Glossa ventrally with irregularly arranged setae in proximal part and about 10 setae forming ventro-median row. Paraglossa with latero-apical setae forming one regular row and few setae just dorsad of it; with about 8 setae in ventro-median row; with 4 setae in dorso-median row. Distal segment of labial palp rounded apically (Fig. 123). Pronotum with pair of protuberances near posterior margin (Figs 87, 88, 111; the same character listed by Shi and Tong 2019: 583, figs 62, 63 under species name C. liebenauae). Metanotum with vestiges of hind protoptera (as in Fig. 54). Forelegs longest, hind legs shortest; on all legs, tarsus (measured on outer side) longer than tibia; in holotype length of femur / tibia / tarsus / claw of foreleg (mm) 0.88: 0.48: 0.57: 0.16; on middle leg 0.83: 0.42: 0.48: 0.16; on hind leg 0.80: 0.39: 0.43: 0.16. Femur parallel-sided; outer margin straight or slightly concave, apically either rounded (Figs 90 - 92), or with blunt-angled projection bearing two subapical setae; inner margin slightly convex. Outer side of femur with regular or irregular row of 9 - 11 long, blunt setae and 2 subapical setae of same form (Figs 90 - 92). Inner-dorsal side of forefemur with few stout setae, length of these setae being half that of setae on dorsal side. Foreleg without patella-tibial suture, middle and hind legs with patella-tibial suture greatly shifted to apex of tibia. Posterior arm of U-shaped row of long setae on fore- and middle leg situated across tibia (Figs 90 - 91); on hind leg longitudinal (Fig. 92). Inner margin of tibia and tarsus with irregular, small, stout, pointed setae. Outer-apical seta of tibia blunt and elongate (Figs 90 - 92). Dorsal side of each tarsus with long, fine setae situated irregularly and partly forming two longitudinal rows. Claw either with two rows of denticles (Fig. 127) or with their vestiges (Fig. 126). Scales on abdominal terga and sterna numerous, elongate, varying in size and shape, bordered by brown (Figs 94 - 122). Posterior margin of abdominal tergum I smooth, without denticles (Fig. 94); posterior margins of terga II-VI with short semicircular and triangular denticles (Figs 95 - 99); terga VII-IX with longer triangular denticles (Figs 100 - 102); on tergum IX middle part of hind margin behind pair of submedian setae lack denticles and projected posteriorly (Fig. 102). Posterior margin of tergum X without denticles on median part, laterally with paired groups of several denticles, decreasing in length in lateral direction (Fig. 93). Posterior margins of abdominal sterna I-IV smooth (Fig. 103); posterior margins of sterna V-VIII with regular, small, pointed, triangular denticles (Figs 104 - 107). Posterior margin of sternum IX in female convex, with row of triangular denticles diminished medially (Fig. 109), in male without denticles between protogonostyli, but with several denticles at sides (Figs 108, 148). Each sternum IV-VI with pair of regular, transverse rows of long, fine, bifurcate setae with spaced sockets (Figs 117 - 119); other sterna either without such setae, or with few, smaller setae irregularly situated. Paraprocts with small, anterior, median apodeme, with few large pointed denticles on posterior margin, with scales as on sterna and terga (Figs 93, 120 - 121). Tergalius I narrow, elongate-ellipsoid; other tergalii wider, gradually changing in shape from tergalius II to tergalius VII (Figs 33 - 39). Each tergalius II-VII, besides costal and anal ribs, with straight and narrow middle rib, located on dorsal surface on background of main trachea (Fig. 125). Costal margin with poorly expressed serration; anal margin without serration; outer margin free of ribs, slightly notched, with small seta in each notch. In middle part of cercus, lateral side with 2 long, pointed denticles on every 4 th segment (Figs 129 - 130). Each cercus, besides regular row of primary swimming setae on inner side (Fig. 132), with smaller and thinner secondary swimming setae on outer margin; on distal half of cercus, secondary swimming setae with wide, transverse, oval bases, forming regular row (Figs 129 - 131); on proximal half of cercus, secondary swimming setae with small, round bases and situated irregularly (Figs 129 - 130). Male genitalia. In last larval instar, developing subimaginal gonostyli folded under larval cuticle in peculiar pose, with 3 rd segments bent medially-proximally (Fig. 148). Subimago. Cuticle light brown with darker brown sutures of thorax; hypodermal coloration as in imago. On all legs of male and female all tarsal segments entirely covered by pointed microlepides (Fig. 137). Imago, male. Head brown. Turbinate eyes relatively low and wide, with yellow stem and orange-red facetted surface (Fig. 135). Thorax dark brown, with ochre pleural membranes (Fig. 135). Wing (Fig. 149) with membrane colourless, veins pale ochre or colourless, extreme base of costal and subcostal veins proximad of costal brace brown. Femora of all legs ochre, apically diffusely tinged with reddish; foretibia light ochre, apically darkened with light brownish; middle and hind tibiae ochre, with diffuse longitudinal stripe; tarsi of all legs pale ochre; claws brown (Fig. 136). In holotype, length of femur, tibia and tarsal segments (mm) on foreleg 1.05: 1.13: 0.05: 0.55: 0.35: 0.19: 0.15, on middle leg 0.78: 0.62: 0.25: 0.09: 0.05: 014, on hind leg 0.74: 0.57: 0.21: 0.07: 0.04: 0.14. Tarsus of middle and hind leg with 1 apical spine on initial 3 rd tarsomere (next after 1 st + 2 nd tarsomere) (as in Fig. 137). Abdominal tergum I colourless; terga II-VI colourless with narrow, contrasting, reddish stripe bordering posterior margin; terga VII-X red with ochre, with darker stripe bordering posterior margin; abdominal sterna colourless (Fig. 139). Genitalia (Figs 140 - 143, 146). Sterno-styligeral muscle entirely absent. Posterior margin of 9 th abdominal sternum between unistyligers with narrow, trapezoid, membranous, colourless process (Figs 141, 146). Gonostylus with 1 st segment narrowed apically; 2 nd segment thickened toward apex; 3 rd segment elongate, narrow and thickened toward apex (Figs 142, 146). Penial bridge medially sharply concave (Fig. 146). Gonovectes apically with sclerotized widenings of peculiar halberd-like shape (Figs 141, 143). Imago, female. Head and thorax ochre with reddish markings (Figs 133 - 134). Leg coloration as in male. Patella-tibial suture present on middle and hind legs, absent on forelegs (as in male). Tarsus of each leg with 1 apical spine on initial 3 rd tarsomere (on foreleg - on tarsomere next after 2 nd tarsomere, on middle and hind leg-on tarsomere next after 1 st + 2 nd tarsomere) (as in Fig. 137). Abdominal terga intensely coloured with ochre and reddish, partly repeating cuticular colour pattern of larva; abdominal sterna nearly colourless, sterna I-VI with pair of reddish maculae near antero-lateral corners (Fig. 138). Egg. Oval; chorion smooth, without relief (Fig. 128).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
797555B02517533F872A2993D0A8C6C1.taxon	distribution	Distribution. Indochina: known from Thailand and Vietnam; recently reported from China (Yunnan, Guangxi, Guangdong) under the species name C. liebenauae (Shi and Tong 2019).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
05AA0EB1B63A5978A812D879736A154C.taxon	materials_examined	Material examined. Paratypes of Centroptella longisetosa (deposited in the Institute of Entomology, BC CAS, Ceske Budejovice and Purdue University Entomological Research Collection, West Lafayette, Indiana, USA): mature female larva with labels: " CHINA, Liu Chiu, Kuj Fon Shan Mt., stream, 11.12.1959, leg. Ivan Hrdy ", " Centroptella longisetosa T. Soldan det. 1980 ", " HOLOTYPE " (now parts of this specimen are mounted on 2 slides, eggs mounted for SEM; one middle larval leg of another specimen, in the same tube (now treated by alkali and mounted on separate slide); one larva, Peoples Republic of China, Liu Chui, Kuj Fon Shan River, 11 - 12 - 1959, I. Hrdy, PERC- 0063355. Neotype and paratypes of Centroptella liebenauae (deposited in the collection of the Institute of Entomology, BC CAS, Ceske Budejovice): one tube containing: 3 male imagines (one without genitalia), 1 male subimago, 1 female imago, 1 male larval exuviae (neotype) and 1 abdomen of female subimago extracted from mature larva, with labels: " VIETNAM, stream, Tam-Dao 60 km NW of Hanoi, 23 - 25.5.1982 T. Soldan ", " Centroptella, T. Soldan det. 1982 " and " PARATYPE "; now larval exuviae (neotype) and parts of male imago and male subimago (one of which possibly was reared from the neotype) are mounted on slides.	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
05AA0EB1B63A5978A812D879736A154C.taxon	materials_examined	Additional material. INDIA, Tamilnadu, Tirunelveli District, Courtallam, Chittar River near Peraruvi (= Main Falls), 3 - 7. II. 2013, coll. N. Kluge & L. Sheyko: 3 L-S-I ♂, 1 L-S-I ♀, 1 S-I ♀, 1 L / S ♂, 1 L / S ♀, 1 larva of penultimate instar.	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
05AA0EB1B63A5978A812D879736A154C.taxon	description	Descriptions. Larva. Cuticular coloration. Head mostly brown (Fig. 55); specimens from India mostly colourless, but with frons brown. Pronotum and mesonotum brown with diffuse lighter and darker areas (Fig. 53). Thoracic pleura and metanotum partly brown, partly colourless; sterna colourless (Fig. 57). Forecoxa colourless; middle and hind coxa laterally brown, medially colourless; femur of each leg light, with large, diffuse, brown macula on posterior surface; tibia of each leg light at middle, at base and apex diffusely tinged with brown; tarsus of each leg proximally brown, with gradation to colourless distally; claws colourless (Fig. 54). Abdominal terga brown with lighter areas; some terga with light medioanterior sigilla; terga IV and VIII lighter than others (Fig. 57). Caudalii colourless (Fig. 56). Shape and setation. Frontal suture short, nearly semicircular (Fig. 55). Labrum equally wide at base and middle, with pair of submedian long setae, 3 - 4 pairs of sublateral long setae and pair of long setae between submedian and sublateral ones (Fig. 43). Prostheca of left mandible with 3 blunt processes and 3 pointed processes (Fig. 40). Prostheca of right mandible directed medially or medially-proximally, bifurcate, with branches diverging under acute angle and longest branch directed proximally (Fig. 41). Maxillary canines and distal dentiseta stout; distal dentiseta widened, with apex somewhat hooked toward canines (Fig. 42). Maxillary palp in specimens from China and Vietnam short, either 2 - segmented, or indistinctly 3 - segmented (Figs 46, 47); in specimens from India long and distinctly 3 - segmented (Fig. 48). Labium with glossae and paraglossae subequal, both narrowed apically (Figs 44 - 45). Glossa ventrally with irregularly arranged setae in proximal part and 4 - 6 setae forming ventro-median row. Paraglossa with latero-apical setae forming one regular row and few (2 - 4) setae just dorsal of it; with 4 - 6 setae in ventro-median row; with 3 setae in dorso-median row. Distal segment of labial palp widened apically (Fig. 45). All thoracic terga without protuberances. Metanotum with vestiges of hind protoptera (Fig. 54; Tong et al. 2003: fig. 7). Femora of all legs equal, tibia and tarsus on foreleg longest, on hind leg shortest; on foreleg tarsus longer than tibia, on middle and hind legs tarsus shorter than tibia (Fig. 54); in paratype length of femur / tibia / tarsus / claw of foreleg (mm) 0.75: 0.48: 0.54: 0.13; on middle leg 0.75: 0.47: 0.44: 0.13; on hind leg 0.75: 0.44: 0.41: 0.13. Femur parallel-sided; outer margin straight or slightly concave, apically with blunt-angled projection bearing two subapical setae; inner margin slightly convex (Fig. 54). Outer side of femur with row of 5 - 7 long blunt setae and 2 subapical setae of same form (Fig. 49). Inner-dorsal side of forefemur with few stout setae, these setae being half length of setae on dorsal side; middle and hind femora with minute setae only. Foreleg without patella-tibial suture, middle and hind legs with patella-tibial suture greatly shifted to apex of tibia. Posterior arm of U-shaped row of long setae on fore- and middle tibiae oblique and directed more longitudinally than transversely (Figs 49 - 50); on hind leg longitudinally (Fig. 51). Inner margin of tibia and tarsus with irregular, small, stout, pointed setae. Outer-apical seta of tibia blunt and elongate (Figs 49 - 51). Dorsal side of each tarsus with long, fine setae, situated irregularly and partly forming two longitudinal rows. Claw without denticles. Scales on abdominal terga and sterna numerous, short, semicircular, colourless and delicate (Figs 52, 60 - 76). Posterior margin of abdominal tergum I smooth, without denticles; posterior margins of terga II-VI partly without denticles, partly with short semicircular and triangular denticles; terga VII-IX with longer, triangular denticles (Figs 60 - 68); on tergum IX denticles located behind pair of submedian setae, smaller and denser than others (but row of denticles not interrupted at this place) (Fig. 68). Posterior margin of tergum X with even row of small, narrow, pointed denticles (Fig. 52). Posterior margins of abdominal sterna I-III smooth; posterior margin of sternum IV with few, minute denticles (Fig. 70); posterior margins of sterna V-VIII with regular pointed denticles, increasing in length from sternum V to sternum VIII (Figs 71 - 74). Posterior margin of sternum IX in female convex, with even row of triangular denticles (Fig. 75), in male with narrow and dense denticles between protogonostyli and by sides of them (Fig. 76). Each sternum IV-VI with pair of regular, transverse rows of long, fine, bifurcate setae with spaced sockets; other sterna either without such setae, or with few, smaller setae irregularly situated (Figs 57 - 58). Paraprocts without anterior median apodeme, with many small, pointed denticles on posterior margin, with scales as on sterna and terga (Fig. 52). Tergalii apically pointed and sharply differentiated as follows: tergalius I lanceolate, slightly bent, widened at midlength, with apex stretched and narrowly pointed (Figs 19, 26); tergalius II especially wide, widest at proximal half, with anal margin more convex than costal margin (Figs 20, 27); tergalii III-VI with gradation of shapes (Figs 21 - 24, 28 - 31); tergalius VII narrow, widest at distal half, with costal margin more convex than anal margin (Fig. 32). Each tergalius II-VII, besides costal and anal ribs, with straight and narrow middle rib, located on dorsal surface on background of main trachea. Costal margin with poorly expressed serration (Fig. 25); anal margin without serration; outer margin free of ribs, slightly notched, with small seta in each notch. Lateral side of each cercus with several long, pointed denticles on each 4 th segment (Figs 56, 59). Each cercus, besides regular row of primary swimming setae on inner side, with smaller and thinner secondary swimming setae on outer margin; on most part of cercus secondary swimming setae with wide transverse oval bases, forming regular row (Fig. 59); on proximal 1 / 5 of cercus secondary swimming setae with small round bases and situated irregularly. Male genitalia (examined in Indian specimen): In last larval instar, developing subimaginal gonostyli folded under larval cuticle in peculiar pose, with 3 rd segments bent medially-proximally (Fig. 79). Subimago. Adequately described by Soldan et al. (1987). Additional details: On all legs of male and female, all tarsal segments entirely covered with pointed microlepides (as in Fig. 137). Imago, male. Adequately described by Soldan et al. (1987). Additional details: Length of femur, tibia and tarsal segments (mm) on foreleg 0.8: 1: 0.04: 0.55: 0.4: 0.21: 0.12, on hind leg 0.55: 0.54: 0.15: 0.09: 0.04: 0.1. Tarsus of middle and hind leg with one apical spine on initial 3 rd tarsomere (next after 1 st + 2 nd tarsomere) (as in Fig. 137). Genitalia: Figs 77, 80. Sterno-styligeral muscle present. Area between unistyligers forms well-outlined, trapezoid, colourless plate with distal margin widest; distal margin shallowly convex at middle and shallowly concave laterally, forming well-expressed angles adjacent to unistyligers. Gonostylus with 1 st segment short and conic; 2 nd segment thickened toward apex; 3 rd segment elongate, narrow and thickened toward apex, with proportions varying individually (Fig. 77). Penial bridge medially with semicircular, sclerotized, colourless projection and with pair of small, oblique, arched, sclerotized ridges proximad of it. Gonovectes shallowly bent, narrowed toward apices. Imago, female. Adequately described by Soldan et al. (1987). Additional details: Patella-tibial suture present on middle and hind legs, absent on forelegs (as in male). Tarsus of each leg with one apical spine on initial 3 rd tarsomere (on foreleg-on tarsomere next after 2 nd tarsomere, on middle and hind leg-on tarsomere next after 1 st + 2 nd tarsomere) (as in Fig. 136). Eggs (extracted from mature female larva, paratype of C. longisetosa). Oval, chorion with numerous irregular small protuberances (Figs 81, 82).	en	Kluge, Nikita J., Godunko, Roman J., Svitok, Marek (2020): Nomenclatural changes in Centroptella Braasch & Soldan, 1980 (Ephemeroptera, Baetidae). ZooKeys 914: 81-125, DOI: http://dx.doi.org/10.3897/zookeys.914.46652, URL: http://dx.doi.org/10.3897/zookeys.914.46652
