identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
5C2F211FFFEBFFFCFD0BFBEE68B3FE6C.text	5C2F211FFFEBFFFCFD0BFBEE68B3FE6C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius Irfan & Bashir & Peng 2021	<div><p>Acroterius gen. nov.</p><p>urn:lsid:zoobank.org:act: EEA7B37A-300B-43D9-87F3-82A380BC686D</p><p>Type species</p><p>Acroterius brevis gen. et sp. nov.</p><p>Diagnosis</p><p>Acroterius gen. nov. resembles Diplostyla; Kaestneria Wiehle, 1956; Laetesia Simon, 1908; Laperousea Dalmas, 1917 and Zhezhoulinyphia in: epigyne with parmula, originates from the posterior margin of posterior median plate with a socket ventrally (Fig. 8A–C; Ivie 1969: figs 105–108; van Helsdingen 1972: fig. 8; Millidge 1988: fig. 173; Irfan &amp; Peng 2018: figs 5c–d, 6c–d; Irfan et al. 2019: figs 1–2, 7, 9–10). In the male palp, the distal margin of the radix is semicircular and has teeth as in Laetesia, Laperousea and Zhezhoulinyphia (Figs 6A–C, 7A–B; Millidge 1988: figs 145–146; Irfan et al. 2019: figs 4a–b, d, 5c–e, 6a–b); the embolus and embolic membrane arise from the dorsal side of the distal margin of the radix as in Zhezhoulinyphia (Figs 6A–C, 7A–B; Irfan et al. 2019: figs 4a–b, d, 5c–e, 6a–b). It can be distinguished by the anterior wall of the epigyne which has a posterior projection on each side (Fig. 8A–B), but in species of Laetesia, the posterior arm of the anterior wall of the epigynal plate is long, with a copulatory opening on the posterior ventral end (Millidge 1988: figs 173, 187), and the posterior projection of the anterior wall absent in species of Diplostyla, Kaestneria and Zhezhoulinyphia (van Helsdingen 1972: fig. 8; Millidge 1988: fig. 173; Irfan &amp; Peng 2018: figs 5c–d, 6c–d; Irfan et al. 2019: figs 1–2, 7, 9–10). The spermathecae are situated near the base of the parmula (Fig. 8A–B) in Acroterius gen. nov., but towards the periphery of epigyne in species of Kaestneria, Laetesia and Zhezhoulinyphia (Millidge 1988: figs 187–189; Tao et al. 1995: figs 80–81; Irfan et al. 2019: figs 1–2, 7, 9–10). The cymbium has a cymbial retrolateral lobe (Figs 6B–D, 7B) as in species of Zhezhoulinyphia (Irfan et al. 2019: figs 4b, 5b, g, 6b), but it is absent in Kaestneria and Laetesia (Millidge 1988: figs 143–144; Paquin &amp; Dupérré 2003: figs 1544, 1547). The distal arm of the paracymbium of Acroterius gen. nov. has two or three projections and covers most of the proximal part of paracymbium (Figs 6B–C, 7B), the distal part of the paracymbium of all species of Kaestneria and Laetesia is simple U- or V-shaped and doesn’t cover the proximal part (Millidge 1988: figs 187–189; Paquin &amp; Dupérré 2003: figs 1544, 1547) and there is a large, distal arm longer than wide, tip pendulum-shaped in species of Zhezhoulinyphia (Irfan et al. 2019: figs 4b, 5f, 6b). The distal end of the distal suprategular apophysis of Acroterius gen. nov. and Kaestneria is not notched (Figs 6B–C, 7B; Tao et al. 1995: figs 77–78) (but notched in species of Laetesia, Millidge 1988: fig. 146), and proximally broad with teeth, has a distal part strongly curved into an inversed U-shape, almost touching the distal margin of the paracymbium in species of Zhezhoulinyphia (Irfan et al. 2019: figs 4b, 5b, g, 6b). The tegulum of Acroterius gen. nov. has a small tegular projection ventrally (Figs 6B–C, 7B), which is absent in Kaestneria (Paquin &amp; Dupérré 2003: figs 1544, 1547; Zhao &amp; Li 2014: figs 47b, 49b) and Laetesia (Millidge 1988: fig. 146). The embolic division of Acroterius gen. nov. comprises a distal semicircular part of the radix with a serrated margin anteriorly; the embolus and embolic membrane arise from the terminal part of the radix (Figs 6A–C, 7A–B) as in species of Zhezhoulinyphia (Irfan et al. 2019: figs 4a–b, 5c–e, 6a–b); the embolus and median membrane arise from the lateral (inner) side of the plate in Kaestneria and Laetesia (Millidge 1988: figs 145, 149; Zhao &amp; Li 2014: figs 47b, 49b) whereas in Diplostyla the embolus arises near the base of the cymbium and extends parallel along the full length of cymbium (Ivie 1969: figs 107–108). In Acroterius gen. nov. the proximal end of the radix has a radical apophysis (Figs 6A–C, 7A–B) as in species of Zhezhoulinyphia (Irfan et al. 2019: figs 4a–b, 5c–e, 6a–b), but it is absent in Diplostyla, Kaestneria and Laetesia (Ivie 1969: figs 107–108; Millidge 1988: figs 145, 149; Zhao &amp; Li 2014: figs 47b, 49b).</p><p>Etymology</p><p>The generic name is an arbitrary combination of letters. Gender masculine.</p><p>Description</p><p>MEASUREMENTS. Large sized, male total length 2.66–3.61; female total length 2.66–4.15.</p><p>HEAD. Cephalic region slightly elevated, yellowish to dark brown; fovea, cervical and radial grooves distinct; sternum longer than wide, green to yellowish to dark brown with spine-like hairs; labium wider than long, dark brown; maxillae long, distal end broader with scopulae. Eye region narrow, AER recurved, PER procurved slightly wider.</p><p>LEGS. All legs with annuli; patella of each leg with two spines; chaetotaxy: 2–2–2–2; Tm I and Tm IV present.</p><p>ABDOMEN. Oval, dorsally with pattern extending down to the base of spinnerets followed by irregular white patches dorso-laterally, and ventrally pale, greenish to brown with or without irregular white patches (Fig. 4A–B).</p><p>MALE PALP (Figs 1, 3, 6, 7, 10–12, 15–16, 24, 26, 30–31). Patella shorter than tibia, dorsally with a long spine;tibia cone shaped, with two retrolateral trichobothria, with some short and long setae on all surfaces; paracymbium highly sclerotized, proximal part simple, somewhat rectangular, distal arm with two to three projections (characterized as lateral, median and ventral projections); cymbium with retrolateral lobe, covered with long thick spines; tegulum with small projection ventrally; distal suprategular apophysis long, basally covered by embolic division. Radix with distal broad semicircular serrated part giving rise to embolus and embolic membrane, at proximal end with small radical apophysis and dorsal projection of embolic plate; dorsal projection of embolic plate long, slightly overlapping cymbium; embolic membrane curved and approachnig distal semicircular part, in prolateral view; embolus stout, short with pointed end.</p><p>EPIGYNE (Figs 8, 13, 17, 21A–D, 22, 27, 29A–D, 32, 34B–E, 36A–D, 37). Anterior wall of epigyne wider than long; posterior margin of anterior wall with a projection on each side; copulatory openings situated inside the atrium between the anterior wall and posterior median plate, connected with long, semicircular copulatory ducts joined to the spermathecae. Posterior median plate posteriorly with a parmula of variable length with a socket ventrally. Spermathecae slender, present near the posterior median plate. Fertilization ducts long, present laterally on the posterior median plate, extending mesally.</p><p>Distribution</p><p>China (Yunnan Province, Figs 38–39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFEBFFFCFD0BFBEE68B3FE6C	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFEDFFFCFDECFDE66862F87D.text	5C2F211FFFEDFFFCFDECFDE66862F87D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius absentus Irfan & Bashir & Peng 2021	<div><p>Acroterius absentus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 4E49A779-9374-40FB-B842-BEECDAD450A4</p><p>Figs 1–4, 38</p><p>Differential diagnosis</p><p>The new species can be distinguished from all other species of Acroterius gen. nov. by the absence of radical apophysis (Figs 1A–C, 3A–B).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ absens ’, meaning ‘absent’, referring to the radical apophysis absent in male palp.</p><p>Type material</p><p>Holotype CHINA • ♂; Yunnan Province, Baoshan City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.46054&amp;materialsCitation.latitude=24.43717" title="Search Plazi for locations around (long 98.46054/lat 24.43717)">Nankang Yakou</a> (National 320 Road); 24.43717° N, 98.46054° E; alt. 2186 m, 27 Oct. 2003; Guo Tang leg.; HNU-Tang031027.</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.61. Carapace 1.34 long, 1.14 wide, cephalothorax yellowish to light brown; clypeus 0.56 high (Fig. 4A–B); abdomen 2.27 long, 0.89 wide. Eye sizes and interdistances:</p><p>AME 0.09, ALE 0.12, PME 0.09, PLE 0.11, AME–AME 0.05, PME–PME 0.08, AME–ALE, 0.12,</p><p>PME–PLE 0.11, ALE–ALE 0.54, PLE–PLE 0.61, ALE–PLE contiguous.</p><p>CHELICERAE. With five promarginal and five retromarginal teeth, promargin with deep depression and with small teeth except proximal two long; proximal second tooth much longer and almost touching upper margin of fang, distal three teeth small (Fig. 2A–B).</p><p>LENGTH OF LEGS. I = 7.48 (1.89, 2.48, 2.03, 1.08), II = 5.9 (1.83, 1.92, 1.32, 0.83), III = 4.11 (1.41, 1.16, 0.97, 0.57), IV = 5.52 (1.72, 1.69, 1.49, 0.62). Leg formula I–II–IV–III.</p><p>PALP (Figs 1A–D, 3A–B). Paracymbium highly sclerotized, distal part with three projections (Figs 1B, 3B), lateral projection small, triangular; median projection broad, tongue-shaped and ventral projection thumb-like (Figs 1B, 3B); the distal suprategular apophysis robust with pointed end (Figs 1A–C, 3A–B); radical apophysis absent (Figs 1A–C, 3A–B). Embolus originating from distal serrated part of radix, stout, short with pointed end (Figs 1A–C, 3A–B).</p><p>Female</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFEDFFFCFDECFDE66862F87D	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFEEFFF5FDFDFAC66862FEC4.text	5C2F211FFFEEFFF5FDFDFAC66862FEC4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius brevis Irfan & Bashir & Peng 2021	<div><p>Acroterius brevis gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: F041D21F-15E7-4C22-895A-4AF2565105D4</p><p>Figs 5–9, 38</p><p>Differential diagnosis</p><p>The new species resembles A. camur gen. et sp. nov. in distal arm of paracymbium with three projection (Figs 6B, 7B, 10B, 11B), but can be distinguished from A. camur gen. et sp. nov. and all other Acroterius gen. nov. species by the ventral view, radical apophysis triangular and reaches to base of embolus (Figs 6D, 7A), but thumb-shaped and extends above embolus in A. camur gen. et sp. nov. (Figs 10D 12A). Spermathecae L-shaped, present near posterior median plate (Fig. 8A–B), but hook-shaped and separated by one and half-length of spermathecae in A. camur gen. et sp. nov. (Fig. 13A–B). Parmula 0.47 long (Fig. 8D), but 0.21 long in A. camur gen. et sp. nov. (Fig. 13D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ brevis ’ meaning ‘short’, referring to the short radical apophysis in male palp.</p><p>Type material</p><p>Holotype CHINA • ♂; Yunnan Province, Fugong County, Lumadeng Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.77975&amp;materialsCitation.latitude=27.16515" title="Search Plazi for locations around (long 98.77975/lat 27.16515)">Yaping Village</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.77975&amp;materialsCitation.latitude=27.16515" title="Search Plazi for locations around (long 98.77975/lat 27.16515)">Shibali</a>; 27.16515° N, 98.77975° E; alt. 2527 m; 1 May 2004; Guang-xu Peng leg.; HNU-20040501–1.</p><p>Paratypes (2 ♀♀)</p><p>CHINA • 1 ♀, same collection data as for holotype; HNU-20040501–2 • 1 ♀; Yunnan Province, Fugong County, Yaping, 3 km to Shibali; 27.1775° N, 98.7550° E; alt. 2527 m; 4 May 2004; Heng-mei Yan and Guang-xu Peng leg.; HNU-20040504 .</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 2.66. Carapace 1.40 long, 1.14 wide, cephalothorax dark brown; clypeus 0.56 high (Fig. 9A–B); abdomen 2.03 long, 1.60 wide. Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.08, PLE 0.07, AME–AME 0.03, PME–PME 0.06, AME–ALE 0.08, PME–PLE 0.07, ALE–ALE 0.45, PLE–PLE 0.49.</p><p>CHELICERAE. With four promarginal and four retromarginal teeth; proximal teeth of reteromargin much longer than distal one.</p><p>LENGTH OF LEGS. I = 4.89 (1.63, 1.47, 1.16, 0.63), II = 3.74 (1.11, 1.31, 0.83, 0.49), III = 3.17 (0.88, 0.96, 0.82, 0.51), IV = 4.35 (1.26, 1.26, 1.17, 0.66). Leg formula I–IV–II–III.</p><p>PALP (Figs 6A–D, 7A–B). Paracymbium highly sclerotized, distal arm with three projections; lateral projection large, curved, beak-shaped; median projection tongue-shaped; ventral projection sclerotized, thumb-shaped with blunt end, overlapping subtegulum (Figs 6B, 7B); distal suprategular apophysis long, robust with distal pointed end (in ventral view) (Figs 6B–D, 7B). Radix with small radical apophysis</p><p>with pointed end (Figs 6A–D, 7A–B); radical apophysis somewhat triangular with blunt end (Figs 6A, 7A). Embolus stout, short with pointed end (Figs 6A–D, 7A–B).</p><p>Female (HNU-20040501–2, Fig. 9C–D)</p><p>MEASUREMENTS AND COLOUR. Total length: 2.97. Carapace 0.94 long, 0.83 wide, cephalothorax dark brown; fovea, cervical and radial grooves distinct; clypeus 0.27 high (Fig. 9C–D); abdomen 1.8 long, 1.05 wide. Eye sizes and interdistances: AME 0.06, ALE 0.09, PME 0.08, PLE 0.07, AME–AME 0.06, PME–PME 0.07, AME–ALE 0.07, PME–PLE 0.07, ALE–ALE 0.41, PLE–PLE 0.45, ALE–PLE contiguous.</p><p>LENGTH OF LEGS. I = 4.40 (1.23, 1.39, 1.03, 0.75), II = 3.92 (1.15, 1.28, 0.91, 0.58), III = 3.07 (0.94, 0.93, 0.71, 0.49), IV = 4.11 (1.13, 1.35, 0.96, 0.67). Leg formula I–IV–II–III. Tm I and Tm IV present. Patella of each leg with two spines. Tibial dorsal spine formula: 2–2–2–2.</p><p>EPIGYNE. Parmula 0.47 long, 0.41 wide at base (Fig. 8A–C); the posterior margin of the anterior wall of epigynal plate with a beak-shaped projection on each side (Fig. 8A–C). Spermathecae slender, L-shaped (Fig. 8D).</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFEEFFF5FDFDFAC66862FEC4	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFE4FFE9FDFEFE5F6862FD21.text	5C2F211FFFE4FFE9FDFEFE5F6862FD21.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius camur Irfan & Bashir & Peng 2021	<div><p>Acroterius camur gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: B86B9669-F527-44A7-BAF0-40B777161195</p><p>Figs 10–14, 38</p><p>Differential diagnosis</p><p>The new species resembles Acroterius brevis gen. et sp. nov. (Figs 6A–D, 7A–B) in having similar embolus in the male palp and a short parmula in the epigyne (Figs 10A–D, 11A–D, 12A–B) as in A. inversus gen. et sp. nov. and A. longidentatus gen. et sp. nov.; it can be distinguished by the distal arm of paracymbium with three projections and similar embolus, the radical thumb-shaped apophysis extends above the embolus in ventral view (Figs 10D, 12A), but is triangular and reaches to the base of the embolus in A. brevis gen. et sp. nov. (Figs 6D, 7A). Spermathecae hook-shaped, separated by one and half-length of spermathecae (Fig. 13A–B), but L-shaped and present near the posterior median plate in A. brevis gen. et sp. nov. (Fig. 8A–D). Parmula somewhat triangular (Fig. 13A–D), but tongue-shaped in A. brevis gen. et sp. nov. (Fig. 8A–C), anteriorly rectangular and posteriorly spoon-shaped in A. inversus gen. et sp. nov. (Fig. 22A–C), finger-shaped in A. longidentatus gen. et sp. nov. (Fig. 29A–C).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ camur ’, meaning ‘curved’ and referring to the curved distal suprategular apophysis in the male palp.</p><p>Type material</p><p>Holotype CHINA • 1 ♂; Yunnan Province, Gongshan County, Bingzhongluo Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.62564&amp;materialsCitation.latitude=28.02499" title="Search Plazi for locations around (long 98.62564/lat 28.02499)">Niwaluo He</a>, just below Nujiang Road; 28.02499° N, 98.62564° E; alt. 1610 m; 8 Oct. 2002; D.H. Kavanaugh, P.E. Marek and Hong-bin Liang leg.; HNU-DHK–2002–038.</p><p>Paratypes (3 ♂♂, 23 ♀♀)</p><p>CHINA – Yunnan Province • 2 ♂♂, 17 ♀♀; same collection data as for holotype; HNU-DHK–2002–038 • 1 ♀; Cikai Township, Dabadi, North bank of Pula river; 27.78333° N, 98.51667° E; alt. 3030 m; 28 Sep. 2002; Heng–mei Yan leg.; HNU-Yan020928 • 1 ♀; Cikai Township, Dabadi to Gongshan, along Pula river downward; 27.7945833° N, 98.5071389° E; alt. 3025–3990 m; 4 Oct. 2002; Heng –mei Yan leg.; HNU-Yan021004 • 1 ♀; Lushui County, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.78333&amp;materialsCitation.latitude=25.78333" title="Search Plazi for locations around (long 98.78333/lat 25.78333)">Waluoyaku</a>; 25.78333° N, 98.78333° E; alt. 1070 m; 14 Oct. 2002; Heng–mei Yan leg.; HNU-Yan021014 • 2 ♀♀; Tengchong County, Wuhe Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.67439&amp;materialsCitation.latitude=24.89284" title="Search Plazi for locations around (long 98.67439/lat 24.89284)">Tongjia 12-dauzhuang Village</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.67439&amp;materialsCitation.latitude=24.89284" title="Search Plazi for locations around (long 98.67439/lat 24.89284)">Longchuanjiang River</a> (Longjiang bridge); 24.89284° N, 98.67439° E; alt. 1210 m; 24 May 2005; Heng-mei Yan and Ke-ji Guo leg.; HNU-GKJ020 • 1 ♂; Nujiang Prefecture, Nujiang State Nature Reserve, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.50244&amp;materialsCitation.latitude=27.71503" title="Search Plazi for locations around (long 98.50244/lat 27.71503)">No. 12 bridge Camp area</a>, 16.3 km W of Gongshan; 27.71503° N, 98.50244° E; alt. 2775 m; 15–19 Jul. 2000; Heng-mei Yan, D.H. Kavanaugh, Charles Griswold, Hongbin Liang, Darrell Ubick and Da-zhi Dong leg.; HNU-00–QD • 1 ♀; Nujiang Prefecture, Nujiang State Nature Reserve, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.45389&amp;materialsCitation.latitude=27.69655" title="Search Plazi for locations around (long 98.45389/lat 27.69655)">Dulong</a> / <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.45389&amp;materialsCitation.latitude=27.69655" title="Search Plazi for locations around (long 98.45389/lat 27.69655)">Gongshan Yakou area</a>, 21 km W of Gongshan; 27.69655° N, 98.45389° E; alt. 3300–3680 m; 16–17 Jul. 2000; Heng-mei Yan, D.H. Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick and Da-zhi Dong leg.; HNU-00–BY .</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 2.95. Carapace 1.41 long, 1.14 wide, cephalothorax brown; clypeus 0.56 high (Fig. 14A–B); abdomen 1.54 long, 1.02 wide (Fig. 14A–B). Eye sizes and interdistances: AME 0.06, ALE 0.07, PME 0.07, PLE 0.07, AME–AME 0.04, PME–PME 0.06, AME– ALE 0.08, PME–PLE 0.07, ALE–ALE 0.42, PLE–PLE 0.46.</p><p>CHELICERAE. With five promarginal and five retromarginal teeth (Fig. 14B); proximal two teeth of reteromargin much longer than distal one.</p><p>LENGTH OF LEGS. I = 6.11 (1.65, 1.92, 1.59, 0.95), II = 5.43 (1.62, 1.58, 1.38, 0.85), III = 4.13 (1.19, 1.26, 1.05, 0.63), IV = 5.61 (1.58, 1.79, 1.32, 0.92). Leg formula I–IV–II–III.</p><p>PALP (Figs 10A–D, 11A–D, 12A–B). Paracymbium highly sclerotized, distal arm with two projections; lateral projection small, somewhat triangular; ventral projection small with blunt end (Figs 10B, 12B); distal suprategular apophysis long, robust, distal part slightly curved with pointed end (Figs 10A–C, 12A–B). Radical apophysis thumb-shaped with blunt end extending above the embolus in ventral view (Figs 10A–D, 11A–D, 12A–B). Embolus stout, short with pointed end (Figs 10A–D, 11A–D, 12A–B).</p><p>Female (HNU-DHK–2002–038)</p><p>MEASUREMENTS AND COLOUR. Total length: 2.66. Carapace 1.17 long, 1.01 wide, cephalothorax brown; clypeus 0.24 high (Fig. 14C–D); abdomen 1.49 long, 1.21 wide (Fig. 14C–D). Eye sizes and interdistances: AME 0.05, ALE 0.09, PME 0.08, PLE 0.07, AME–AME 0.04, PME–PME 0.06, AME– ALE 0.06, PME–PLE 0.05, ALE–ALE 0.41, PLE–PLE 0.46, ALE–PLE contiguous.</p><p>CHELICERAE. With five promarginal and six retromarginal teeth; proximal teeth of reteromargin are much longer than distal one.</p><p>LENGTH OF LEGS. I = 4.73 (1.31, 1.54, 1.06, 0.82), II = 4.13 (1.28, 1.23, 1, 0.62), III = 3.45 (0.99, 1.07, 0.91, 0.48), IV = 4.41 (1.29, 1.32, 1.02, 0.78). Leg formula I–IV–II–III.</p><p>EPIGYNE. Parmula 0.21 long, 0.41 wide at base (Fig. 13A–B); the posterior margin of anterior wall of epigynal plate with a projection horizontal to anterior wall of epigynal plate margin in orientation (Fig. 13A–B). Spermathecae slender, distal part hook-shaped (Fig. 13D).</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFE4FFE9FDFEFE5F6862FD21	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFFAFFEEFD95FED96862FE4C.text	5C2F211FFFFAFFEEFD95FED96862FE4C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius circinatus Irfan & Bashir & Peng 2021	<div><p>Acroterius circinatus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 826A098B-3362-42BB-95F7-3E3E0C763F04</p><p>Figs 15–18, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius brevis gen. et sp. nov. (Figs 6A–D, 7A–B, 8A–D) in having a long distal suprategular apophysis and radix with broad circular serrated part, which give rise to the embolus at its distal end in the male palp, parmula with socket on ventral surface and copulatory ducts forming a semicircular loop before joining the spermathecae in epigyne (Figs 15A–D, 16A–B, 17A–D); it can be distinguished by the median projection of the distal arm of paracymbium wider than long (Figs 15B, 16B), but longer than wide in A. brevis gen. et sp. nov. (Figs 6B, 7B). The embolus basally broad, disk-shaped, robust and almost touches the semicircular serrated part of the radix (Figs 15A–D, 16A–B), but stout, thread–like and pointing away from the semicircular serrated part of the radix in A. brevis gen. et sp. nov. (Figs 6A–D, 7A–B). Radical apophysis thumb-shaped, curved (Figs 15B, 16B), but somewhat triangular in A. brevis gen. et sp. nov. (Figs 6B, 7B). The spermathecae situated dorso– mesally (Fig. 17D), but situated dorso–laterally in A. brevis gen. et sp. nov. (Fig. 8D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ circinatus ’, meaning ‘circular’ and referring to the circinate-shaped copulatory ducts in the ventral view of the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♂; Yunnan Province, Longyang County, Bawan Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.75806&amp;materialsCitation.latitude=24.92597" title="Search Plazi for locations around (long 98.75806/lat 24.92597)">Sancha He</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.75806&amp;materialsCitation.latitude=24.92597" title="Search Plazi for locations around (long 98.75806/lat 24.92597)">Luoshuidong area</a>; 24.92597° N, 98.75806° E; alt. 2300 m; 3 Jun. 2005; Charles Griswold leg.; HNU-CGY137.</p><p>Paratypes (9 ♂♂, 5 ♀♀)</p><p>CHINA – Yunnan Province, Longyang County • 7 ♂♂; same collection data as for holotype; HNU-CGY137 • 2 ♂♂; Bawan Township, Sanchahe, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.75564&amp;materialsCitation.latitude=24.94755" title="Search Plazi for locations around (long 98.75564/lat 24.94755)">Luoshuidong area</a>; 24.94755° N, 98.75564° E; alt. 2300 m; 3 Jun. 2005; Heng-mei Yan, Ke-ji Guo and Hong-bin Liang leg.; HNU-GKJ039 • 3 ♀♀; Bawan Dist., <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76472&amp;materialsCitation.latitude=24.83178" title="Search Plazi for locations around (long 98.76472/lat 24.83178)">Nankang Yakou</a>; 24.83178° N, 98.76472° E; alt. 2180 m; 25 May 2005; Charles Griswold and D.H. Kavanaugh leg.; HNU-2005–029A • 2 ♀♀; Bawan Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.75368&amp;materialsCitation.latitude=24.93167" title="Search Plazi for locations around (long 98.75368/lat 24.93167)">Dasheyao Yakou</a>; 24.93167° N, 98.75368° E; alt. 2488 m; on top of mountain; 30 May 2005; Heng-mei Yan and Ke-ji Guo leg.; HNU-CGY32 .</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.25. Carapace 1.56 long, 1.24 wide, cephalic region strongly elevated, yellowish; fovea, cervical and radial grooves distinct; clypeus 0.41 high (Figs 18A–C); abdomen 1.69 long, 1.21 wide (Fig. 18A–C). Eye sizes and interdistances: AME 0.08, ALE 0.09, PME 0.08, PLE 0.09, AME–AME 0.04, PME–PME 0.05, AME–ALE 0.9, PME–PLE 0.12, ALE–ALE 0.44, PLE–PLE 0.48, ALE–PLE contiguous.</p><p>CHELICERAE. With five promarginal and five retromarginal teeth.</p><p>LENGTH OF LEGS. I = 6.57 (1.71, 2.03, 1.88, 0.95), II = 5.78 (1.62, 1.81, 1.51, 0.84), III = 4.43 (1.29, 1.33, 1.13, 0.68), IV = 5.63 (1.64, 1.68, 1.49, 0.82). Leg formula I–II–IV–III.</p><p>PALP (Figs 15A–D, 16A–B). Paracymbium highly sclerotized, distal part with three projections, lateral projection large, slightly curved, tongue-shaped with blunt end in ventral view; median projection wider than long; ventral projection sclerotized, small with blunt end, strongly overlapping subtegulum (Figs 15B, 16B); distal suprategular apophysis long, distal part curved and pointing towards tegulum (Figs 15A–D, 16A–B). Radical apophysis slightly curved with blunt end, protruding upward above base of embolus (Figs 15A–D, 16A–B); embolic membrane protruding above distal semicircular part, in prolateral view (Figs 15A, 16A). Embolus highly sclerotized, robust, disk-shaped, almost touching semicircular serrated part of radix with pointed end (Figs 15A–D, 16A–B).</p><p>Female (HNU-CGY137)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.38. Carapace 1.42 long, 1.12 wide, yellowish; fovea, cervical and radial grooves distinct; clypeus 0.19 high (Fig. 18D–F); abdomen 1.96 long, 1.61 wide (Fig. 18D– F). Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.09, PLE 0.09, AME–AME 0.05, PME– PME 0.06, AME–ALE 0.07, PME–PLE 0.11, ALE–ALE 0.45, PLE–PLE 0.51, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and seven retromarginal teeth; reteromarginal teeth gradually decrease in length towards the distal end.</p><p>LENGTH OF LEGS. I = 5.32 (1.37, 1.69, 1.32, 0.94), II = 4.75 (1.36, 1.42, 1.15, 0.82), III = 3.43 (1.04, 1.04, 0.79, 0.56), IV = 4.58 (1.26, 1.44, 1.12, 0.76). Leg formula I–II–IV–III.</p><p>EPIGYNE. Parmula 0.55 long, 0.24 wide at base (Fig. 17A–B); posterior projection of anterior wall of epigynal plate circular, forming circinate appearance (Fig. 17A–B). Spermathecae slender, situated dorso-mesally near median septum pointing toward lateral walls (Fig. 17D).</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFFAFFEEFD95FED96862FE4C	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFFEFFE3FDEDF9156862FB9A.text	5C2F211FFFFEFFE3FDEDF9156862FB9A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius hamatus Irfan & Bashir & Peng 2021	<div><p>Acroterius hamatus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 754D348A-8F5C-47DA-9940-FDCEDD520F56</p><p>Figs 19–21, 38</p><p>Differential diagnosis</p><p>The new species resembles Acroterius brevis gen. et sp. nov. (Fig. 8A–D) in having the posterior median plate extending posteriorly with a parmula, but can be distinguished by: in dorsal view, parmula two times the width of parmula base, with distal part distinctly expanded (Fig. 19D), slightly longer than the width of parmula base (Fig. 19A–D), but distal part not expanded in A. brevis gen. et sp. nov. In lateral view, anterior wall of epigynal plate projection wider than long (Figs 19C, 21C), but longer than wide in A. brevis gen. et sp. nov. (Fig. 8C).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ hamatus ’, meaning ‘hook’ and referring to the hookshaped spermathecae in the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Gongshan County, Dulongjiang Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.33878&amp;materialsCitation.latitude=27.87961" title="Search Plazi for locations around (long 98.33878/lat 27.87961)">Kongdang Village</a>; 27.87961° N, 98.33878° E; alt. 1527 m; 25 Oct. 2004; Guo Tang leg.; HNU-Tang–04–04.</p><p>Paratypes (5 ♀♀)</p><p>CHINA – Yunnan Province, Gongshan County • 4 ♀♀; 77 km of new road to Donglongjiang; 27.91034° N, 98.41081° E; alt. 2183 m; 8–9 Nov. 2004; Guo Tang leg.; HNU-Tang–04–09 • 1 ♀; Dulongjiang Township, S/N of Dizhengdang Village along Silalong He; 28.07654° N, 98.32603° E; alt. 1890 m; 28 Oct. 2004; D.H. Kavanaugh leg.; HNU-DHK–2004–059 .</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.43. Carapace 1.41 long, 1.17 wide, cephalothorax brown; clypeus 0.41 high (Fig. 20A–B); abdomen 2.01 long, 1.41 wide. Eye sizes and interdistances:</p><p>AME 0.06, ALE 0.08, PME 0.07, PLE 0.07, AME–AME 0.04, PME–PME 0.07, AME–ALE 0.09, PME–PLE 0.08, ALE–ALE 0.49, PLE–PLE 0.53, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and six retromarginal teeth; reteromarginal teeth long and highly sclerotized protruding beyond fangs.</p><p>LENGTH OF LEGS. I = 5.39 (1.74, 1.40, 1.31, 0.94), II = 4.99 (1.42, 1.54, 1.17, 0.83), III = 3.95 (1.18, 1.25, 0.9, 0.62), IV = 4.94 (1.44, 1.53, 1.18, 0.79). Leg formula I–II–IV–III.</p><p>EPIGYNE. Parmula 0.53 long, 0.28 wide at base (Fig. 19A–C); posterior margin of anterior wall of epigynal plate with projection wider than long on each side (Fig. 19A–B). Spermathecae slender, distal part slightly curved, pointing towards posterior margin of epigyne (Fig. 19D).</p><p>VARIATION IN THE EPIGYNE (HNU-Tang–04–09, Fig. 21A–F). We noticed in the four out of five female paratypes that the epigynal parmulas are broken at the same point due to unknown reasons. All the other somatic and genitalic characters are found to be similar (Fig. 21A–D).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFFEFFE3FDEDF9156862FB9A	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFF2FFE6FDE2FB9F6862FDAA.text	5C2F211FFFF2FFE6FDE2FB9F6862FDAA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius inversus Irfan & Bashir & Peng 2021	<div><p>Acroterius inversus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 42879150-7E48-4E0F-8C7B-004DDB375847</p><p>Figs 22–23, 38</p><p>Differential diagnosis</p><p>The new species resembles Acroterius camur gen. et sp. nov. (Fig. 13A–D) in having the similar short parmula in epigyne as in A. brevis gen. et sp. nov. and A. longidentatus gen. et sp. nov. (Fig. 22A–D); it can be distinguished by: spermathecae sinuous (Fig. 22D), but hook-shaped in A. camur gen. et sp. nov. (Fig. 13D). Parmula anteriorly rectangular and posteriorly spoon-shaped (Fig. 22A–C), but tongueshaped in A. brevis gen. et sp. nov. (Fig. 8A–C), somewhat triangular in A. camur gen. et sp. nov. (Fig. 13A–C), finger-shaped in A. longidentatus gen. et sp. nov. (Fig. 29A–C).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ inversus ’, meaning ‘inverted’ and referring to the inverted L-shaped spermathecae in the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Lonyang County, Bawan Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76472&amp;materialsCitation.latitude=24.83178" title="Search Plazi for locations around (long 98.76472/lat 24.83178)">Nankang Yakou</a>; 24.83178° N, 98.76472° E; alt. 2180 m; 25 May 2005; Charles Griswold leg.; HNU-CGY115.</p><p>Paratypes (4 ♀♀)</p><p>CHINA – Yunnan Province • 2 ♀♀; Lonyang County, Baoshan City, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.46054&amp;materialsCitation.latitude=24.43717" title="Search Plazi for locations around (long 98.46054/lat 24.43717)">Nankang Yakou</a> (National 320 Road); 24.43717° N, 98.46054° E; alt. 2186 m; 30 Oct. 2003; Guo Tang leg.; HNU-Tang031031 • 1 ♀; Lushui County, Pianma Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.66651&amp;materialsCitation.latitude=25.99363" title="Search Plazi for locations around (long 98.66651/lat 25.99363)">Chanyan He</a>, 9.3 km to Pianma; 25.99363° N, 98.66651° E; alt. 2470 m; mixed broadleaf deciduous and evergreen forest; 13–14 May 2005; Charles Griswold leg.; HNU-CGY105 • 1 ♀; Longling County, Longjiang Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76001&amp;materialsCitation.latitude=24.82888" title="Search Plazi for locations around (long 98.76001/lat 24.82888)">Xiaoheishan Nature Reserve</a>; 24.82888° N, 98.76001° E; alt. 2020 m; broadleaf forest; 26 May 2005; Charles Griswold leg.; HNU- CGY124 .</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.33. Carapace 1.10 long, 1.08 wide, cephalic region slightly elevated, yellowish to light brown; fovea, cervical and radial grooves distinct; clypeus 0.26 high (Fig. 23A–B); abdomen 2.22 long, 1.81 wide (Fig. 23A–B). Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.08, PLE 0.07, AME–AME 0.04, PME–PME 0.06, AME–ALE 0.05, PME–PLE 0.11, ALE–ALE 0.44, PLE–PLE 0.48, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and six retromarginal teeth.</p><p>LENGTH OF LEGS. I = 5.04 (1.41, 1.62, 1.22, 0.79), II = 4.54 (1.37, 1.41, 1.05, 0.71), III = 3.37 (1.12, 0.93, 0.81, 0.51), IV = 4.61 (1.38, 1.42, 1.12, 0.69). Leg formula I–IV–II–III.</p><p>EPIGYNE. Posterior median plate extends posteriorly with short parmula with spoon-like deep socket ventrally (Fig. 22A–B); parmula 0.35 long, 0.25 wide at base (Fig. 22A–B); posterior margin of anterior wall of epigynal plate wider than long, with somewhat circle-like projection (Fig. 22A–B); copulatory openings situated inside atrium between anterior wall and posterior median plate (Fig. 22A–B), connected with long, semicircular copulatory ducts joined to spermathecae (Fig. 22D). Spermathecae slender, sinuous, forming almost complete wave (Fig. 22D). Fertilization ducts present laterally on posterior median plate (Fig. 22D).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFF2FFE6FDE2FB9F6862FDAA	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFF7FFD9FDF4FDAD6862FCE4.text	5C2F211FFFF7FFD9FDF4FDAD6862FCE4.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius latus Irfan & Bashir & Peng 2021	<div><p>Acroterius latus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 896C3469-C7F5-4931-ADBF-B423F6513F4A</p><p>Figs 24–28, 38</p><p>Differential diagnosis</p><p>The new species resembles Acroterius longimultus gen. et sp. nov. (Figs 30A–D, 31A–B) in having the distal arm of paracymbium with two projections in the male palp and the long parmula with a median incision in the epigyne (Figs 24A–D, 26A–B); it can be distinguished by: the distal suprategular apophysis short, retained below the apex of cymbium in retrolateral view (Fig. 24B), but long, swordshaped, protruding beyond the apex of cymbium in A. longimultus gen. et sp. nov. (Fig. 30B). The dorsal projection of embolic plate doesn’t touch the base of cymbium in prolateral view (Figs 24A, 26A), but almost touches the base of cymbium in A. longimultus gen. et sp. nov. (Figs 30A, 31A). The lateral projection of the distal arm of the paracymbium is finger-shaped, almost touches the posterior margin of the tibia (Figs 24B, D, 26B), but is tongue-shaped and away from the posterior margin of the tibia in A. longimultus gen. et sp. nov. (Figs 30B, D, 31B). The posterior projection of the anterior wall of the epigynal plate is wider than long and doesn’t protrude beyond the epigastric furrow (Fig. 27A–B), but is longer than wide and protruding beyond the epigastric furrow in A. longimultus gen. et sp. nov. (Fig. 32A–B). The distal part of the spermathecae is hook-shaped (Fig. 27D), but inverted L-shaped in A. longimultus gen. et sp. nov. (Fig. 32D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ latus ’ meaning ‘broad’, referring to the radical apophysis with a broad distal end in the male palp.</p><p>Type material</p><p>Holotype CHINA • ♂; Yunnan Province, Lonyang County, Bawan Distr., <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76472&amp;materialsCitation.latitude=24.83178" title="Search Plazi for locations around (long 98.76472/lat 24.83178)">Nankang Yakou</a>; 24.83178° N, 98.76472° E; alt. 2180 m; 25 May 2005; Charles Griswold and D.H. Kavanaugh leg.; HNU-CGY123.</p><p>Paratypes (3 ♀♀)</p><p>CHINA – Yunnan Province • 1 ♀; same collection data as for holotype; HNU-CGY123 • 1 ♀; Fugong County, 2 km down Shibali; 27.16284° N, 98.78989° E; alt. 2420 m; 2 May 2004; Guang–xu Peng leg.; HNU-20040502 • 1 ♀; Fugong County, Lishadi Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.7798&amp;materialsCitation.latitude=27.1052" title="Search Plazi for locations around (long 98.7798/lat 27.1052)">Shibali</a>; 27.10520° N, 98.77980° E; alt. 2530 m; 10 Aug. 2005; Guo Tang leg.; HNU-Tang–05–02 .</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.55. Carapace 1.84 long, 1.47 wide, cephalic region slightly elevated, dark brown, with longitudinal band starting from base of posterior lateral eyes extending to base of cephalothorax followed by fovea, cervical and radial grooves distinct; clypeus 0.34 high (Fig. 28A–B); abdomen 1.71 long, 1.29 wide. Eye sizes and interdistances: AME 0.06, ALE 0.09, PME 0.07, PLE 0.07, AME–AME 0.07, PME–PME 0.09, AME–ALE 0.11, PME–PLE 0.13, ALE–ALE 0.51, PLE–PLE 0.55, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and five retromarginal teeth; distal three teeth of promargin very small (Fig. 25B).</p><p>LENGTH OF LEGS. I = 6.59 (1.79, 1.99, 1.67, 1.14), II = 4.88 (1.66, 1.69, 1.32, 1), III = 3.95 (1.34, 1.39, 0.76, 0.46), IV=5.98 (1.74, 1.82, 1.46, 0.96). Leg formula I–IV–II–III.</p><p>PALP (Figs 24A–D, 26A–B). Paracymbium highly sclerotized, distal arm with two projections (Figs 24B, 26B), lateral projection finger-like in ventral view and almost touches posterior margin of paracymbium in retrolateral view; ventral projection thumb-like with blunt end; distal suprategular apophysis slightly protruding above cymbium in ventral view (Figs 24D, 26B). Radical apophysis relatively large, tongueshaped, slightly curved with blunt end in ventral view (Figs 24A–D, 26A–B). Embolus stout, short with pointed end (Figs 24A–C, 26A–B).</p><p>Female (HNU-CGY123)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.03. Carapace 1.26 long, 1.01 wide, cephalic region slightly elevated, dark brown, with a longitudinal band starting from base of posterior lateral eyes extending to base of cephalothorax; fovea, cervical and radial grooves distinct; clypeus 0.25 high (Fig. 28C–D);</p><p>abdomen 1.75 long, 1.33 wide. Eye sizes and interdistances: AME 0.07, ALE 0.09, PME 0.07, PLE 0.08, AME–AME 0.05, PME–PME 0.10, AME–ALE 0.08, PME–PLE 0.07, ALE–ALE 0.43, PLE–PLE 0.47, ALE–PLE contiguous.</p><p>CHELICERAE. In dorsal view, chelicerae with depression at proximal end slightly below reteromargin with six promarginal and seven retromarginal teeth; reteromarginal teeth gradually decreasing in length towards base of fang (Fig. 25A–B).</p><p>LENGTH OF LEGS. I = 4.30 (1.29, 1.48, 0.89, 0.64), II = 4.05 (1.26, 1.34, 0.86, 0.59), III = 2.27 (1.02, 1.06, 0.69, 0.52), IV = 4.39 (1.23, 1.34, 1.03, 0.79). Leg formula I–IV–II–III.</p><p>EPIGYNE. Parmula 0.45 long, 0.14 wide at base (Fig. 27A–B); posterior projection of anterior wall of epigynal plate margin of epigyne wider than long, not protruding beyond epigastric furrow (Fig. 27A– B). Spermathecae slender, distal part of spermathecae hook-shaped, slightly curved, pointing towards lateral wall of epigyne (Fig. 27D).</p><p>Distribution</p><p>China (Yunnan Province, Fig. 38).</p></div>	https://treatment.plazi.org/id/5C2F211FFFF7FFD9FDF4FDAD6862FCE4	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFCDFFDEFD83FED96862FE22.text	5C2F211FFFCDFFDEFD83FED96862FE22.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius longidentatus Irfan & Bashir & Peng 2021	<div><p>Acroterius longidentatus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: F372CAB7-6C3F-403D-809D-4FDA72FB7B10</p><p>Figs 29, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius brevis gen. et sp. nov. (Fig. 8A–D) in having a similar short parmula as in A. camur gen. et sp. nov. and A. longidentatus gen. et sp. nov. and the C-shaped distal part of spermathecae in epigyne (Fig. 29A–D); it can be distinguished by: the posterior projection of the anterior wall of the epigynal plate C-shaped in ventral view, somewhat triangular in lateral view and retained below the lateral margin of anterior wall of the epigyne in the new species (Fig. 29A–C), but beak-shaped in ventral view, protruding above the lateral margin in A. brevis gen. et sp. nov. (Fig. 8A–C). The spermathecae are situated near the median septum (Fig. 29D), but situated away from the median septum in A. brevis gen. et sp. nov. (Fig. 8D). Parmula finger-shaped (Fig. 29A–C), but tongue-shaped in A. brevis gen. et sp. nov. (Fig. 8A–C), anteriorly rectangular and posteriorly spoon-shaped in A. inversus gen. et sp. nov. (Fig. 22A–C) and somewhat triangular in A. camur gen. et sp. nov. (Fig. 13A–C).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ longus ’ + ‘ dentatus ’, meaning ‘long’ + ‘teeth’ and referring to the long and highly sclerotized teeth on the retrolateral margin of the chelicerae in the female.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Longling County, Longjiang Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76001&amp;materialsCitation.latitude=24.82888" title="Search Plazi for locations around (long 98.76001/lat 24.82888)">Xiaoheishan Nature Reserve</a>; 24.82888° N, 98.76001° E; alt. 2020 m; broadleaf forest; 28 May 2005; Charles Griswold and D.H. Kavanaugh leg.; HNU-2002–033A.</p><p>Paratypes (5 ♀♀)</p><p>CHINA – Yunnan Province • 4 ♀♀; same collection data as for holotype; HNU-2002–033A • 1 ♀; Longling County, Longjiang Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.76185&amp;materialsCitation.latitude=24.83671" title="Search Plazi for locations around (long 98.76185/lat 24.83671)">Xiaoheishan Nature Reserve</a>; 24.83671° N, 98.76185° E; alt. 2067 m; hand collecting; 28 May 2005; Heng-mei Yan and Guo Ke-ji leg.; HNU-GKJ029 .</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.73. Carapace 1.27 long, 1.18 wide, cephalic region slightly elevated, yellowish brown, with distinct pattern starting from the base of posterior median eyes; fovea, cervical and radial grooves distinct; clypeus 0.27 high (Fig. 29E–F); abdomen 2.47 long, 1.81 wide. Eye sizes and interdistances: AME 0.07, ALE 0.11, PME 0.08, PLE 0.08, AME–AME 0.05, PME–PME 0.08, AME–ALE 0.11, PME–PLE 0.09, ALE–ALE 0.51, PLE–PLE 0.55, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and six retromarginal teeth; reteromarginal teeth long and highly sclerotized.</p><p>LENGTH OF LEGS. I = 6.13 (1.67, 1.95, 1.55, 0.96), II = 5.50 (1.45, 1.75, 1.51, 0.79), III = 3.50 (0.98, 1.07, 0.91, 0.54), IV = 5.02 (1.23, 1.61, 1.36, 0.82). Leg formula I–II–IV–III.</p><p>EPIGYNE. Parmula 0.36 long, 0.23 wide at base (Fig. 29B); the posterior projection of anterior wall of epigynal plate circular in ventral view; somewhat triangular and retained below lateral wall of epigynal plate in lateral view (Fig. 29A–C). Spermathecae slender, distal part C-shaped and situated near median septum (Fig. 29D).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFCDFFDEFD83FED96862FE22	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFCFFFD2FD98FE256862FDAE.text	5C2F211FFFCFFFD2FD98FE256862FDAE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius longimultus Irfan & Bashir & Peng 2021	<div><p>Acroterius longimultus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: A79B8C4E-1540-4031-A067-7F12809D5B95</p><p>Figs 30–33, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius latus gen. et sp. nov. (Figs 24A–D, 26A–B) in having the distal arm of the paracymbium with two projections in the male palp and the long parmula with a median incision in the epigyne (Figs 31A–B, 32A–D); it can be distinguished by: the distal suprategular apophysis long, sword-shaped, protruding beyond the apex of cymbium in retrolateral view (Figs 30B, 31B), but short, retained below the apex of cymbium in A. latus gen. et sp. nov. (Figs 24B, 26B). The dorsal projection of the embolic plate almost touches the base of the cymbium in prolateral view (Figs 30A, 31A), but doesn’t touch the base of the cymbium in A. latus gen. et sp. nov. (Figs 24A, 26A). The lateral projection of the distal arm of the paracymbium is tongue-shaped, away from the posterior margin of the tibia (Figs 30B, D, 31B), but finger-shaped, almost touching the posterior margin of the tibia in A. latus gen. et sp. nov. (Figs 24B, D, 26B). The posterior projection of the anterior wall of the epigynal plate is longer than wide, protruding beyond the epigastric furrow (Fig.32A–B), but wider than long, not protruding beyond the epigastric furrow in A. latus gen. et sp. nov. (Fig. 27A–B). The distal part of spermathecae inverted L-shaped (Fig. 32D), but hook-shaped in A. latus gen. et sp. nov. (Fig. 27D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ longus ’ + ‘ multus ’, meaning ‘long’ + ‘much’ and referring to the very long distal suprategular apophysis in the male palp.</p><p>Type material</p><p>Holotype CHINA • ♂; Yunnan Province, Fugong County, Lumadeng Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.77975&amp;materialsCitation.latitude=27.16515" title="Search Plazi for locations around (long 98.77975/lat 27.16515)">Yaping Village</a>, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.77975&amp;materialsCitation.latitude=27.16515" title="Search Plazi for locations around (long 98.77975/lat 27.16515)">Shibali</a>; 27.16515° N, 98.77975° E; alt. 2527 m; 1 May 2004; Guang–xu leg.; HNU-20040501–1.</p><p>Paratypes (1 ♂, 1 ♀)</p><p>CHINA • 1 ♂, 1 ♀; same collection data as for holotype; HNU-20040501–2 .</p><p>Description</p><p>Male (holotype)</p><p>MEASUREMENTS. Total length: 3.18. Carapace 1.53 long, 1.23 wide, cephalic region slightly elevated, brown; fovea, cervical and radial grooves distinct; clypeus 0.21 high (Fig. 33A–B); abdomen 1.65 long, 1.19 wide (Fig. 33A–B). Eye sizes and interdistances: AME 0.07, ALE 0.08, PME 0.07, PLE 0.09, AME–AME 0.04, PME–PME 0.07, AME–ALE 0.08, PME–PLE 0.08, ALE–ALE 0.44, PLE–PLE 0.51.</p><p>CHELICERAE. With five promarginal and five retromarginal teeth; teeth of reteromargin almost equal in length.</p><p>LENGTH OF LEGS. I = 5.56 (1.39, 1.61, 1.63, 0.93), II = 4.80 (1.32, 1.43, 1.28, 0.77), III = 3.87 (1.21, 1.08, 1.04, 0.54), IV = 5.45 (1.39, 1.73, 1.61, 0.72). Leg formula I–IV–II–III.</p><p>PALP (Figs 30A–D, 31A–B). Paracymbium highly sclerotized, distal arm with three projections; lateral projection large, curved, beak-shaped with pointed end in retrolateral view; median projection tongueshaped, wider than long; ventral projection sclerotized, tip curved with blunt end, strongly overlapping subtegulum (Figs 30B, 31B); distal suprategular apophysis much longer than that of all other species in this genus, sword-shaped, protruding above cymbium (Figs 30A–D, 31A–B). Radical apophysis longer than wide, finger-shaped with broad blunt end, pointing towards distal margin of radix in ventral view (Figs 30A–D, 31A–B). Dorsal projection of embolic plate with broad, round end, curved and almost touching base of cymbium in prolateral view (Figs 30A, 31A). Embolus stout, short with pointed end (Figs 30A–C, 31A–B).</p><p>Female (HNU-20040501–02)</p><p>MEASUREMENTS. Total length: 2.67. Carapace 1.13 long, 0.91 wide, cephalic region slightly elevated, yellowish brown, with longitudinal band starting from base of posterior lateral eyes extending to middorsal; fovea, cervical and radial grooves distinct; Clypeus 0.24 high (Fig. 33D–E); abdomen 1.54 long, 1.16 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.06, PLE 0.07, AME–AME 0.04, PME–PME 0.05, AME–ALE 0.06, PME–PLE 0.09, ALE–ALE 0.39, PLE–PLE 0.42, ALE–PLE contiguous.</p><p>CHELICERAE. With five promarginal and five retromarginal teeth. LENGTH OF LEGS. I = 3.88 (1.19, 1.31, 0.86, 0.52), II = 3.74 (1.15, 1.08, 0.88, 0.63), III = 2.62 (0.8, 0.84, 0.61, 0.37), IV = 3.37 (0.93, 1.03, 0.86, 0.55). Leg formula I–II–IV–III.</p><p>EPIGYNE. Lateral margin of parmula wave-like on each side (Fig. 32A–C); parmula 0.45 long, 0.15 wide at base (Fig. 32A–C); posterior projection of anterior wall of epigynal plate longer than wide and protruding beyond epigastric furrow (Fig. 32A–B). Spermathecae slender, inverted L-shaped (Fig. 32D).</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFCFFFD2FD98FE256862FDAE	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFC2FFD3FD8FFED86862F87D.text	5C2F211FFFC2FFD3FD8FFED86862F87D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius longiprojectus Irfan & Bashir & Peng 2021	<div><p>Acroterius longiprojectus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 5E2F3303-07EE-4A75-9FE8-62EC8372BB8C</p><p>Figs 34, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius hamatus gen. et sp. nov. (Fig. 19A–D) in having long parmula in epigyne (Fig. 34B–E); it can be distinguished by: the posterior projection of the anterior wall of the epigynal plate longer than wide (Figs 34B–C), but wider than long in A. hamatus gen. et sp. nov. (Figs 19A–B, 21A–B). In ventral view, the distal part of parmula is not expanded (Fig. 34B–C), but distinctly expanded in A. hamatus gen. et sp. nov. (Fig. 19A–B). The spermathecae are not curved (Fig. 34E), but the tip is curved, pointing towards the posterior margin of the epigyne in A. hamatus gen. et sp. nov. (Figs 19D, 21D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ longus ’ + ‘ projectus ’ meaning ‘long’ + ‘projection’, referring to the long posterior projection of the anterior wall of the epigynal plate in the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Fugong County, Lumadeng Township, Yakou of old Shibali; 27.06430° N, 98.75123° E; alt. 3270 m; 13 Aug. 2005; Guo Tang leg.; HNU-Tang–05–06.</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3.15. Carapace 1.33 long, 0.97 wide, cephalic region slightly elevated, brown, dorsally with distinct pattern starting from base of posterior eyes extending to proximal part of cephalothorax; fovea, cervical and radial grooves distinct; clypeus 0.26 high (Fig. 34A);Abdomen 1.83 long, 1.48 wide (Fig. 34A). Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.06, PLE 0.07 AME–AME 0.04, PME–PME 0.06, AME–ALE 0.07, PME–PLE 0.09, ALE–ALE 0.42, PLE–PLE 0.45, ALE–PLE contiguous.</p><p>CHELICERAE. With six promarginal and six retromarginal teeth; reteromarginal teeth long and highly sclerotized.</p><p>LENGTH OF LEGS. I = 4.66 (1.14, 1.35, 1.2, 0.77), II = 3.78 (0.95, 1.2, 1.11, 0.52), III = 2.45 (0.84, 1.02, 1.11, 0.49), IV = 4.16 (1.17, 1.23, 1.11, 0.65). Leg formula I–IV–II–III.</p><p>EPIGYNE. Parmula 0.49 long, 0.27 wide at base (Fig. 34B–C); posterior projection of anterior wall of epigynal plate longer than wide on either side (Fig. 34B–C). Spermathecae slender, long, almost touches lateral wall of epigyne on each side (Fig. 34E).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFC2FFD3FD8FFED86862F87D	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFC5FFD7FDFEFA616862FD43.text	5C2F211FFFC5FFD7FDFEFA616862FD43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius ovatus Irfan & Bashir & Peng 2021	<div><p>Acroterius ovatus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 33E64A5A-FD47-48ED-B075-B721D9EDE3A3</p><p>Figs 35–36, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius longidentatus gen. et sp. nov. (Fig. 29A–C) in having a similar circular posterior projection of the anterior wall of the epigynal plate in the epigyne (Fig. 36A–C); it can be distinguished by the anterior wall of the oval epigynal plate margin (Fig. 36A–B), but semicircular in A. longidentatus gen. et sp. nov. (Fig. 29A–B). In dorsal view, parmula with wave-like margin and almost four times as long as median septum (Fig. 36D), but tongue-shaped and as long as median septum in A. longidentatus gen. et sp. nov. (Fig. 29D). The spermathecae are hook-shaped (Fig. 36D), but C-shaped in A. longidentatus gen. et sp. nov. (Fig. 29D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ ovatus ’, meaning ‘oval’ and referring to the oval anterior wall of the epigynal plate margin of the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Tengchong County, Mingguang Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.62406&amp;materialsCitation.latitude=25.79808" title="Search Plazi for locations around (long 98.62406/lat 25.79808)">Zizhi Village</a>; 25.79808° N, 98.62406° E; alt. 2756 m; 19 May 2006; Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg.; HNU-YHY06.</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 3. Carapace 1.01 long, 0.96 wide, cephalic region slightly elevated, dark brown, dorsally with distinct pattern starting from base of posterior eyes extending to proximal part of cephalothorax; fovea, cervical and radial grooves distinct; clypeus 0.23 high (Fig. 35A– B); abdomen 1.99 long, 1.49 wide (Fig. 35A–B). Eye sizes and interdistances: AME 0.06, ALE 0.09, PME 0.08, PLE 0.07, AME–AME 0.04, PME–PME 0.06, AME–ALE 0.09, PME–PLE 0.07, ALE–ALE 0.45, PLE–PLE 0.48, ALE–PLE 0.02.</p><p>CHELICERAE. With five promarginal and six retromarginal teeth; reteromarginal teeth long and highly sclerotized, protruding beyond fangs.</p><p>LENGTH OF LEGS. I = 4.34 (1.19, 1.35, 1.07, 0.73), II = 4.03 (1.14, 1.28, 0.89, 0.72), III = 2.76 (0.94, 0.72, 0.65, 0.45), IV = 3.56 (1.15, 1.08, 0.74, 0.59). Leg formula I–II–IV–III.</p><p>EPIGYNE. Lateral margin of parmula wave-like (Fig. 36A–B); parmula 0.57 long, 0.18 wide at base (Fig. 35A–B); anterior wall of epigynal plate margin oval (Fig. 36A–B); posterior projection of anterior wall of epigynal plate somewhat circular on each side (Fig. 36A–B). Spermathecae slender, hook-shaped pointing towards lateral margin of epigyne (Fig. 36D).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFC5FFD7FDFEFA616862FD43	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
5C2F211FFFC6FFC9FDF8FCC66862FD53.text	5C2F211FFFC6FFC9FDF8FCC66862FD53.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acroterius parvus Irfan & Bashir & Peng 2021	<div><p>Acroterius parvus gen. et sp. nov.</p><p>urn:lsid:zoobank.org:act: 959DFFDC-D4A9-41C5-B099-B7AA5047F2D8</p><p>Figs 37, 39</p><p>Differential diagnosis</p><p>The new species resembles Acroterius brevis gen. et sp. nov. in having similar hook-shaped spermathecae; it can be distinguished by the triangular parmula, shorter than the median septum in the new species (Fig. 37A, D), but tongue-shaped and longer than the median septum in A. brevis gen. et sp. nov. (Fig. 8A–B, D).</p><p>Etymology</p><p>The species name comes from the Latin adjective ‘ parvus ’, meaning ‘small’, referring to the small parmula of the epigyne.</p><p>Type material</p><p>Holotype CHINA • ♀; Yunnan Province, Gongshan County, Bingzhongluo Township, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=98.47389&amp;materialsCitation.latitude=27.97928" title="Search Plazi for locations around (long 98.47389/lat 27.97928)">Chukuai</a>; 27.97928° N, 98.47389° E; alt. 3725 m; 19 Aug. 2006; Peng Hu leg.; HNU-Hu060819.</p><p>Paratype (1 ♀)</p><p>CHINA • 1 ♀; same collection data as for holotype; HNU-Hu060819 .</p><p>Description</p><p>Female (holotype)</p><p>MEASUREMENTS AND COLOUR. Total length: 4.15. Carapace 1.60 long, 2.90 wide, cephalic region slightly elevated, brown, dorsally with dark brown longitudinal band starting from base of posterior eyes extending to proximal part of cephalothorax; fovea, cervical and radial grooves distinct; clypeus 0.41 high (Fig. 37E–F); abdomen 2.55 long, 2.35 wide. Eye sizes and interdistances: AME 0.13, ALE 0.1, PME 0.09, PLE 0.12, AME–AME 0.06, PME–PME 0.08, AME–ALE 0.07, PME–PLE 0.12, ALE–ALE 0.51, PLE–PLE 0.62, ALE–PLE 0.03.</p><p>CHELICERAE. With six promarginal and six retromarginal teeth; reteromarginal teeth long and highly sclerotized.</p><p>LENGTH OF LEGS. I = 7.25 (1.97, 2.24, 1.83, 1.21), II = 6.48 (1.87, 1.89, 1.69, 1.03), III = 4.63 (1.52, 1.34, 1.16, 0.61), IV = 6.02 (1.75, 1.84, 1.54, 0.89). Leg formula I–II–IV–III.</p><p>EPIGYNE. Posterior median plate extends posteriorly with small triangular parmula, wider than long (Fig. 37A–B); parmula 0.26 long, 0.26 wide at base (Fig. 37A–B); posterior projection of anterior wall of epigynal plate circular in ventral view, somewhat triangular in lateral view on each side (Fig. 37A–B). Spermathecae slender, distal part slightly curved and pointing towards fertilization ducts (Fig. 37D).</p><p>Male</p><p>Unknown.</p><p>Distribution</p><p>China (Yunnan Province, Fig. 39).</p></div>	https://treatment.plazi.org/id/5C2F211FFFC6FFC9FDF8FCC66862FD53	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.		Plazi	Irfan, Muhammad;Bashir, Shahida;Peng, Xianjin	Irfan, Muhammad, Bashir, Shahida, Peng, Xianjin (2021): Acroterius gen. nov. (Araneae: Linyphiidae: Linyphiinae) with twelve new species from Yunnan, China. European Journal of Taxonomy 743: 1-53, DOI: 10.5852/ejt.2021.743.1293, URL: http://dx.doi.org/10.5852/ejt.2021.743.1293
