identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03F3878EFFD1FFB563B90000FB1D6F8C.text	03F3878EFFD1FFB563B90000FB1D6F8C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Notacanthurus maculatus Zhang & Zhang & Han & Zhou 2020	<div><p>Notacanthurus maculatus Zhou, sp. n.</p> <p>Materials examined. Holotype: male imago (reared from mature nymph), Yue-Ba town (33°32′50.86″N, 107°49′29.36″E), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=107.82482&amp;materialsCitation.latitude=33.547462" title="Search Plazi for locations around (long 107.82482/lat 33.547462)">Fo-Ping county</a>, Han-Zhong city, Shaanxi Province, China, collected by Chang-Fa ZHOU, Qiang XIE, 25-VII-2000.</p> <p>Paratypes: 2 male imagoes 1 female imago 3 female subimagoes (reared from mature nymphs) 50 nymphs, same as the holotype; 1 male imago 3 female imagoes, Sai-Ke bridge (32°52′45.66″N, 104°24′22.36″E), Tie-Lou village, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=104.40621&amp;materialsCitation.latitude=32.87935" title="Search Plazi for locations around (long 104.40621/lat 32.87935)">Wen county</a>, Gansu Province, collected by Chang-Fa ZHOU, 8-VIII-2000; 4 male imagoes 2 female imagoes 50 nymphs, Xi-Xia stream (32°52′45.66″N, 104°24′22.36″E), Xia-Chuan town, Jin-Cheng city, Shanxi Province, col- lected by <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=104.40621&amp;materialsCitation.latitude=32.87935" title="Search Plazi for locations around (long 104.40621/lat 32.87935)">Yan-Xia</a> WANG, Ze-Yu WANG, 23-VII-2012; 3 male imagoes 6 male subimagoes 4 female subimagoes 30 nymphs, Great-River village (35°44′23.90″N, 111°02′23.43″E), Yi-Cheng county, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=111.03984&amp;materialsCitation.latitude=35.73997" title="Search Plazi for locations around (long 111.03984/lat 35.73997)">Lin-Fen</a> city, Shanxi Prov- ince, collected by Chang-Hai SUN, Ji-Hua XU, Zi-Wei WANG, 13-IX-2013; 2 male imagoes 1 female subimago 2 nymphs, Yang-Lin-Qiao town (30°44′52.44″N, 110°45′57.85″E), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.76607&amp;materialsCitation.latitude=30.7479" title="Search Plazi for locations around (long 110.76607/lat 30.7479)">Yi-Chang county</a>, Hubei Province, collected by Ran LI, Wei ZHANG, 2-VIII-2019.</p> <p>Description. Nymph (in alcohol, Figs 1–4): body length 9.0–13.0 mm, caudal filaments 13.0–15.0 mm (mean of 14 nymphs). Head width 1.4–1.8x of length, yellow brown to dark brown. Anterior margin of head not thickened; anterior and lateral margins slightly convex while posterior margin nearly straight; vertex with thin pale stripe above compound eyes (Fig. 1 A–B).</p> <p>Mouthparts: labrum 0.5x width of head, laterally tapering and slightly curved, relatively long setae on dorsal surface and free margin, ventral surface with shallow median emargination and ventral groove, row of bristles along the margin of groove (Fig. 2 A–B). Both mandibles covered with numerous long setae on outer margins; prostheca with 4–6 fimbriate bristles; outer incisor of left mandible with serrated margin and one larger terminal denticle; inner one with trifid apex and row of sparse hair-like setae below the molar; outer incisor of right mandible serrated with 2 apical terminal denticles; inner one divided into 3 sharp denticles (Fig. 2 C–D, H–I). Maxillae with scattered simple setae on ventral surface, with 19–21 comb-shaped setae on crown of galea-lacinia, distal dentisetae branched, proximal dentisetae bifid and fimbriate (Figs 2G, 4 A–C); maxillary palp 3-segmented, basal segment with sporadic setae on outer margin; outer margin of second segment with longer setae and terminal segment with dense setae brush (Fig. 2G). Hypopharynx: apex of superlinguae strongly curved and extended into round lobe-like structure, row of hair-like setae on the outer margin from base to apex; lingua bell-like, with tuft of setae on apex (Fig. 2E). Labium: glossae subquadrangular, inner margin of glossae slightly expanded, with tuft of long setae; paraglossae expanded into distinct lobes, with dense setae and bristles on dorsal and free margins; labial palp 2-segmented, ventral surface and free margin of second segment with setae brush, dorsal surface with scattered golden setae (Fig. 2F).</p> <p>Thorax: pronotum extended laterally, slightly wider than head (Fig. 1 A–B). Supracoxal spurs rounded. Legs yellowish with two brown bands on femora; ventral surface of femora with spots on middle and apex (Figs 1 A–C, 3A–C). Femora of all legs with row of long setae on outer margin, dorsal surface with scattered spatulate setae, apex of femora with blunt apical projection (Fig. 3 A–C, 3F); foretibiae subequal to femora in length, with rows of spinelike setae on inner and dorsal margins, outer margin with few tiny and short setae on base, foretarsi ca. half length of tibiae (Fig. 3A); midlegs similar to forelegs, except tibiae 0.8x length of femora, with dense setae on outer margin, tarsi 1/3 length of tibiae (Fig. 3B); hindlegs similar to midlegs except tibiae 0.77x length of femora and outer margin with denser setae, hindtarsi with row of hair-like setae on outer margin (Fig. 3 C–D). Claws of all legs similar, with a large basal denticle and 2 subapical denticles (Fig. 3E).</p> <p>Abdomen: abdominal terga I–IX each with median black dot on anterior margin and a longitudinal ridge, the ridge protrudes towards posterior of tergum, forming a spine; submedian part of terga I–IX each with pair of brown oblique stripes, an additional small pair of pale dots nearby (Fig. 1A, 1C). Each tergum with row of small pointed spines on posterior margin and black stripe close to these spines (Fig. 1A, 1C); posterolateral angles of terga I–VIII extended into small acute projections; posterior margin of sternum IX straight to slightly convex (Fig. 1D), some mature nymphs washed with median dark brown stripes on sternum IX. Gills I–VI with both lamellae and fibrilliform portions and gill VII with lamellae only; gill I leaf-like, inner margin curved, lamellae longer than fibrilliform portion (Fig. 3H); gills II–VI similar to each other, lamellae broad (Fig. 3 I–J); gills V–VI each with an additional arrow-like accessory lobe (Fig. 3J); gill VII slightly asymmetrical, with fine marginal setae (Fig. 3K). Terminal fila- ment subequal to cerci, all of them with whorls of spines on articulations (Fig. 3G).</p> <p>Male imago (in alcohol, Figs 5–6): body length 10.0–12.0 mm, forewing 10.0–13.0 mm, hindwing 4.0–5.0 mm, cerci 25.0–30.0 mm. Body pale to yellowish with brown dots and stripes; anterior margin of head capsule not greatly produced, compound eyes contiguous (Fig. 5 A–B). Mesonotum with apparent transverse suture, lateral parapsidal sutures slightly bent, joining posterior transverse suture (Fig. 5B). Prosternum relatively flat; mesotho- racic furcasternum parallel (Fig. 5C). Femora of all legs pale, with 3 brown bands; tibiae and tarsi pale with brown apex (Fig. 5A). Femora: tibiae: tarsi of forelegs=3.0: 4.0: 6.4, tarsal segments from basal to apical=1.2: 2.0: 1.8: 1.0: 0.4; midlegs and hindlegs similar to forelegs except femora: tibiae: tarsi=3.2: 2.5: 1.4, tarsal segments arranged in decreasing order=5, 1, 2, 3, 4. Forewing hyaline, crossveins pigmented dark brown between C, Sc, R 1 and Rs; several crowded crossveins between Sc, R 1 and Rs; Rs and MP forked sub-equidistant from base of wing to margin, MA forked over 1/2 of distance from base of wing to margin (Fig. 6A). Hindwing transparent, with basal costal projection, MA forked near middle but MP forked basally (Fig. 6B). Each tergum of abdomen I–IX with median brown dots on anterior margin and pair of oblique brown stripes laterally (Fig. 5D).</p> <p>Genitalia: styliger plate almost straight with 2 small lateral projections (Fig. 6D). Forceps segments 3–4 less than half length of segment 2, segment 4 oval, slightly shorter than segment 3. Penes fused but with apical incision and distinct brown spermatic duct on ventral surface, stem base of penes sclerotized laterally; with median spinelike titillators subapically and mesally (Fig. 6 D–E). Cerci pale with brown articulations (Fig. 5A).</p> <p>Male subimago (in alcohol): body length 10.0–12.0 mm, forewing 11.0–12.0 mm, hindwing 4.0–5.0 mm, caudal filaments 9.0–12.0 mm. Resembles the male imago except dull. Femora: tibiae: tarsi of forelegs=3.0: 2.8: 2.4, tarsal segments arranged in decreasing order=2, 3, 1, 4, 5; those of midlegs=3.0: 2.6: 1.2, tarsal segments arranged in decreasing order=5, 1, 2, 3, 4; those of hindlegs=3.2: 3.6: 1.2, tarsal segments similar to midlegs.</p> <p>Female imago (in alcohol, Figs 5E, 6C): body length 10.0–14.0 mm, caudal filaments 18.0–27.0 mm, forewing 12.0–15.0 mm, hindwing 4.0–5.0 mm. Similar to male imago except as follows: lengths of femora: tibiae: tarsi of forelegs=3.0: 3.2: 2.2, tarsal segments arranged in decreasing order=2, 3, 1, 4, 5; those of midlegs=3.6: 3.0: 1.4, length order of tarsal segments in decreasing order=5, 1, 2, 3, 4; those of hindlegs=4.0: 3.0: 1.4, tarsal segments similar to midlegs. Lateral stripes on abdomen terga reddish and much broader (Fig. 5E). Subgenital plate almost close to posterior margin of sternum VIII; subanal plate with convex posterior margin (Fig. 6C). Articulations of cerci brown to dark.</p> <p>Female subimago (in alcohol): body length 10.0–12.0 mm, forewing 12.0–14.0 mm, hindwing 4.0–5.0 mm, caudal filaments 10.0–15.0 mm. Color pattern resembles female imago except dull. Femora: tibiae: tarsi of forelegs=3.0: 2.6: 2.4, tarsal segments arranged in decreasing order=2, 3, 5, 1, 4; those of midlegs=3.0: 2.4: 1.2, length order of tarsal segments in decreasing=5, 1, 2, 3, 4; those of hindlegs=3.2: 2.8: 1.2, tarsal segments similar to midlegs.</p> <p>Egg (Fig. 7): Egg ovoid, chorion decorated with irregular tubercle-like projections and small knob-terminated coiled threads (KCTs) on polar (Fig. 7A). Micropyle round to oval (Fig. 7 A–B).</p> <p>Etymology: The Latin specific name maculatus means marks, spots or having spots. It indicates the nymphs of this species having more spots on both sides of femora.</p> <p>Diagnosis. This species can be distinguished from others Notacanthurus by the following combination of characters. In nymph: 1) femora of all legs with ventral spots; 2) tibiae of mid- and hindleg with rows of spine-like setae on dorsal and inner margins; 3) claws with 2 subapical denticles; 4) gills V–VI with additional arrow-like lobes. In imagoes: 1) round penis lobes with visible spermatic duct and basal sclerites on ventral surface; 2) anterior margin of head not expanded; 3) posterior margin of subgenital plate almost reaching the tip of sternum VIII.</p> <p>In the seven known species of the genus Notacanthurus, the nymph of N. maculatus sp. n. appears to be closely related to N. baei Braasch &amp; Boonsoong (2009) because of their similar color patterns of abdominal terga, head capsule with nearly straight posterior margins, gills V–VI with accessory lobes and sternum IX with prospective median dark stripe. However, compared to N. baei, the nymph of N. maculatus sp. n. has larger body size (9.0–13.0 mm), head width more than 1.4 of length (1.4–1.8), a thin white stripe above compound eyes, pronotum slightly wider than head, posterior margin of sternum IX nearly straight. In contrast, the nymph of N. baei has smaller size (8.0–9.0 mm), head width 1.4 of length, head capsule with irregular pale yellow markings, pronotum slightly smaller than head, posterior margin of sternum IX with notch. In addition, the gills shape of them are also different; N. maculatus sp. n. has gill I leaf-like, lamellae of gills II–VII broad while N. baei has gill I knife-shaped, gills II–VII with narrower lamellae.</p> <p>In adults, male and female imagoes of N. maculatus sp. n. have pigmented crossveins in fields of C, Sc, R 1 and Rs. In contrast to other congeners (N. cristatus, N. ladakhensis and N. zhiltzovae), N. maculatus sp. n. is unique by having unexpanded anterior margin of head capsule and simple teardrop shaped penis lobes.</p> </div>	https://treatment.plazi.org/id/03F3878EFFD1FFB563B90000FB1D6F8C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Wei;Zhang, Min;Han, Na;Zhou, Chang-Fa	Zhang, Wei, Zhang, Min, Han, Na, Zhou, Chang-Fa (2020): Two new species of the genus Notacanthurus from China (Ephemeroptera: Heptageniidae, Ecdyonurinae). Zootaxa 4802 (2): 335-348, DOI: 10.11646/zootaxa.4802.2.7
03F3878EFFD6FFB963B9077FFBC96C48.text	03F3878EFFD6FFB963B9077FFBC96C48.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Notacanthurus lamellosus Zhang & Zhang & Han & Zhou 2020	<div><p>Notacanthurus lamellosus Zhou, sp. n.</p> <p>Materials examined. Holotype: male imago, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=110.54621&amp;materialsCitation.latitude=29.345873" title="Search Plazi for locations around (long 110.54621/lat 29.345873)">Jin-Bian creek</a> (29°20′45.14″N, 110°32′46.36″E), Zhang-Jia-Jie city, Hunan Province, China, collected by Ran LI, Wei ZHANG, 8-VIII-2019.</p> <p>Paratypes: 2 male imagoes 3 female imagoes 2 nymphs, same as the holotype; 1 male imago 1 female imago, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=107.693275&amp;materialsCitation.latitude=28.108522" title="Search Plazi for locations around (long 107.693275/lat 28.108522)">Jin-Sha village</a> (28°06′30.68″N, 107°41′35.78″E), Zun-Yi city, Guizhou Province, China, collected by Qing-Bo HUO, Jia-Wen YUAN, 6-V-2019.</p> <p>Description. Nymph (in alcohol, Figs 8–11): body length 7.0– 8.2 mm, caudal filaments 12.0–15.0 mm. Head subquadrate, brown, width 1.6x of length. Anterior margin of head with shallow concavity, lateral margins slightly convex while posterior margin nearly straight; antennae 2.0 mm, four pale dots above the base of antennae and thin pale stripe above compound eyes (Fig. 8 A–B).</p> <p>Mouthparts: labrum ca. 0.5x width of head, anteriorly straight, laterally round; dorsally with dense and long hair-like setae, ventral surface with median groove, additional row of bristles on ventral anterior margin (Fig. 9A). Mandibles covered with numerous long setae along outer margins; prostheca with 6–7 fimbriate bristles, row of sparse setae below the mola (Fig. 9 B–C); outer incisor of left mandible with serrated margin; inner one with trifid apex; outer incisor of right mandible with serrated margin and forked apex; inner one divided into 2 sharp denticles (Fig. 9 B–C, G–H). Maxillae with scattered simple setae on ventral surface and branched distal dentisetae, proximal dentisetae bifid, 16 comb-shaped setae on crown of galea-lacinia (Figs 9F, 11 A–C); first segment of maxillary palp with sparse setae on both sides; second segment with long and dense setae on outer margin, third segment with setaceous brush (Fig. 9F). Hypopharynx: lingua bell-like, with tuft of setae on apex; superlinguae extended laterally, with round and curved apex, and row of hair-like setae along the outer margin from base to apex (Fig. 9D). Labium: glossae long ellipse, outer margin slightly expanded, inner margin with tuft of long setae; paraglossae expanded into distinct lobes; labial palp 2-segmented, outer margin of second segment with setae brush, dorsal surface with scattered golden setae (Fig. 9E).</p> <p>Thorax: pronotum extended laterally, subequal to head width (Fig. 8 A–B). Supracoxal spurs small and round. Femora of all legs pale and dorsally with 3 brown markings, middle dot V shaped and apical one dark brown, outer margin with long bristles, scattered spatulate setae on dorsal surface and blunt projection on apex (Fig. 10 A–C, 10G). Foretibiae 0.91x length of forefemora, outer margin and dorsal surface with rows of sparse setae, inner margin with row of spine-like setae; foretarsi yellowish, 0.38x length of tibiae, outer margin with tiny spine-like setae (Fig. 10A, 10D); tibiae of midlegs similar to foretibiae except 0.95X length of femora, outer margin with dense setae; tarsi similar to foretarsi except 0.28x length of tibiae (Fig. 10B); hindlegs similar to midlegs in structure except tibiae 0.8x of femora in length, tarsi 0.3x length of tibiae and with rows of setae on outer and inner margins (Fig. 10C). Claws of all legs with a large denticle and 5 subapical denticles, among those the first two smaller (Fig. 10D).</p> <p>Abdomen: terga I–IX each with median dorsal ridge only and row of small pointed spines on posterior margin, an additional brown stripe besides those spines; terga V–VI each light brown with pair of pale dots on median and pair of brown stripes laterally (terga I–IX each with pair of brown stripes but only terga V–VI visible obviously); tergum VIII pale with brown marking on posterior margin, terga IX–X dark brown, with pale dots (Fig. 8A, 8D); posterolateral angles of terga I–VII extended slightly into small round projections; posterior margin of sternum IX and tergum X slightly concave (Fig. 8C, 8E). Gill I banana-shaped, outer margin extended, lamella longer than fibrilliform portion (Fig. 10E); gills II–IV divided into 2 portions, the outer portion banana-shaped while inner portion round lobe-like (Fig. 10F); gills V–VI lamellae broad oval, each with round projection towards the posterior end (Fig. 10H); gill VII with lamella only, leaf-like, with blunt projection and slightly asymmetrical (Fig. 10I). Caudal filaments pale with whorls of spines on articulations (Fig. 8E).</p> <p>Male imago (in alcohol, Figs 12–13): body length 8.0–9.0 mm, forewing 8.0–9.0 mm, hindwing 2.8–3.0 mm, cerci 17.0–20.0 mm. Body pale with brown stripes (Fig. 12A); anterior margin of head not produced, compound eyes contiguous, upper portion grey and lower portion black (Fig. 12 C–D). Thoracic mesonotum with apparent transverse suture, lateral parapsidal sutures slightly straight, joining posterior transverse suture (Fig. 12C). Prosternum relatively flat; mesothoracic furcasternum parallel (Fig. 12D). Forewing hyaline, crossveins pigmented dark brown between C, Sc, R 1 and Rs, but crossveins reduced in number in the Sc and R 1 fields; Rs and MP forked sub- equidistant from base of wing to margin, MA forked over 1/2 of distance from base of wing to margin (Fig. 13A). Hindwing transparent, with a projection near basal costal vein (Fig. 13B). Femora of forelegs brown, with two dark dots on middle and apex, tibiae pale but basal part black, tarsi pale; midlegs and hindlegs similar to forelegs (Fig. 12A). Terga I–IX of abdomen pale, each with dark brown stripe on posterior margin, terga V–VIII with pair of oblique brown stripes laterally, those on terga V–VI hardly visible (Fig. 12E).</p> <p>Genitalia: styliger plate convex with 2 small lateral projections (Fig. 13 C–D). Forceps segment 2 straight, segments 3–4 less than half length of segment 2, segment 4 long oval, shorter than segment 3. Penes lobes fused with V shaped apical incision and well-developed apical sclerite, inner surface and stem base of penes with scleroses; with median spine-like titillators subapically and mesally (Fig. 13 C–D). Cerci pale with brown articulations (Fig. 12A).</p> <p>Female imago (in alcohol, Figs 12B, 12F, 13E): body length 7.0–9.0 mm, caudal filaments 13.0–15.0 mm, forewing 8.0–9.0 mm, hindwing 2.7–3.0 mm. Similar to male imago except as follows: terga I–IX each with pair of lateral brown stripes (Fig. 12F); pigmented crossveins of forewings present between Sc and R 1. Posterior margin of subgenital plate produced to 1/2 of sternum VIII; subanal plate with convex posterior margin (Fig. 13E). Articulations of cerci brown (Fig. 12B).</p> <p>Egg (Fig. 14): Egg ovoid, chorion decorated with irregular plate-like knob-terminated coiled threads (KCTs) and small tubercle-like projections (Fig. 14 A–B).</p> <p>Etymology: The Latin specific name lamellosus refers to blade or lamina. It indicates the nymphs of this species possess gills II–IV split into 2 portions.</p> <p>Diagnosis. This species can be distinguished from others in the genus Notacanthurus by the following combination of characters. In nymph: 1) dorsal lamellae of gills II–IV divided into 2 portions; 2) abdominal terga I–IX with small dorsal ridges; 3) claws with 5 subapical denticles; 4) femora of all legs with 3 brown markings on dorsal surface. In imagoes: 1) styliger plate with median convex posterior margin and 2 small lateral projections; penis lobes slightly expanded laterally, with sclerites apically and ventrally; 2) pigmented crossveins between Sc and R 1 of male imago reduce in number; 3) abdominal terga V–VIII with oblique stripes; 4) posterior margin of subgenital plate of female reaching half of sternum VIII.</p> <p>The nymph of N. lamellosus sp. n. is similar to N. edentatus Braasch (1986) by having a median dorsal ridge only, without posterior spines. However, compared to N. edentatus, the nymph of N. lamellosus sp. n. has smaller body size (7.0 mm), head width 1.6x of length, row of long setae up to the concave margin of the superlinguae. In contrast, the nymph of N. edentatus has larger body size (11.0– 12.3 mm), head width 1.4x of length, superlinguae with row of long setae along the outer margin from base to subapical portion.</p> <p>The male imago of N. lamellosus sp. n. can easily distinguished form other congeners by unspecialized anterior</p> <p>margin of head, color pattern of abdomen, shape of genitalia and reduced crossveins in the field of Sc and R 1.</p> <p>Additionally, the eggs of the two new species are different to those of N. baei. The eggs of the latter species have</p> <p>microgranules and crenulated granules while both N. maculatus sp. n. and N. lamellosus sp. n. have tubercle-like</p> <p>projections only. The plate-like KCTs of N. lamellosus sp. n. is unique within the genus.</p> </div>	https://treatment.plazi.org/id/03F3878EFFD6FFB963B9077FFBC96C48	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Wei;Zhang, Min;Han, Na;Zhou, Chang-Fa	Zhang, Wei, Zhang, Min, Han, Na, Zhou, Chang-Fa (2020): Two new species of the genus Notacanthurus from China (Ephemeroptera: Heptageniidae, Ecdyonurinae). Zootaxa 4802 (2): 335-348, DOI: 10.11646/zootaxa.4802.2.7
03F3878EFFDAFFB963B906FBFA206A17.text	03F3878EFFDAFFB963B906FBFA206A17.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Notacanthurus	<div><p>Key to the known species of the genus Notacanthurus (mature nymph)</p> <p>1. Median ridges on abdominal terga I–IX relatively small, without obvious posterior spines............................ 2</p> <p>- Median ridges on abdominal terga I–IX large, forming clear posterior spines...................................... 3</p> <p>2. Superlinguae with row of hair-like setae along outer margin from base to subapical portion; gill III broad and heart-like; gill VII leaf-like with round apex...................................................................... N. edentatus</p> <p>- Superlinguae with row of hair-like setae along outer margin from base to apex; gill III split into 2 portions; gill VII leaf-like with blunt apical projection.............................................................. N. lamellosus sp. n.</p> <p>3. Claws with denticles................................................................................... 4</p> <p>- Claws without denticles................................................................................ 7</p> <p>4. Claws with 2–3 denticles; gills V–VI each with arrow-like accessory lobe; pronotum expanded laterally................ 5</p> <p>- Claws with more denticles (10–11); gills V–VI each with blunt apical projection; posterolateral margin of pronotum fixed to the side of mesonotum.................................................................... N. islamabadicus</p> <p>5. Abdominal terga with oblique stripes; dorsal surface of femora with scattered simple stout setae....................... 6</p> <p>- Abdominal terga without distinct markings; dorsal surface of femora with stout setae but apically pointed........ N. baekdu</p> <p>6. Pronotum slightly wider than head; head width 1.4–1.8x of length; posterior margin of sternum IX straight.................................................................................................... N. maculatus sp. n.</p> <p>- Pronotum slightly narrower than head; head width 1.4x of length; posterior margin of sternum IX concave......... N. baei</p> <p>7. Pronotum with expanded anterolateral margin.................................................... N. ladakhensis</p> <p>- Pronotum expanded laterally............................................................................ 8</p> <p>8. Abdominal terga III–VIII with obvious markings laterally; trachea of gills invisible; gill VII ellipsoid.......... N. cristatus</p> <p>- Abdominal terga I–IX with dark oblique stripes laterally; trachea of gills visible; gill VII banana-shaped....... N. zhiltzovae</p></div> 	https://treatment.plazi.org/id/03F3878EFFDAFFB963B906FBFA206A17	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Zhang, Wei;Zhang, Min;Han, Na;Zhou, Chang-Fa	Zhang, Wei, Zhang, Min, Han, Na, Zhou, Chang-Fa (2020): Two new species of the genus Notacanthurus from China (Ephemeroptera: Heptageniidae, Ecdyonurinae). Zootaxa 4802 (2): 335-348, DOI: 10.11646/zootaxa.4802.2.7
