78,598 research outputs found
Ptocasius davidi Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius davidi</i> sp. nov. <p>urn:lsid:zoobank.org:act: 95B9B5D4-9038-4F59-9868-56C1B621657C</p> <p>Figs 8–9, 43</p> Diagnosis <p> The new species resembles <i>P. urbanii</i> (Żabka, 1981) (Żabka 1981: figs 25–26), but can be distinguished by: (1) atrium outline V-shaped in ventral view (Figs 8B, 9A), while almost parallel to each other in <i>P. urbanii</i> (Żabka 1981: fig. 25); (2) posterior margin of pockets two times as wide as long in ventral view (Figs 8B, 9A), while as long as wide in <i>P. urbanii</i> (Żabka 1981: fig. 25); (3) interdistance of pockets almost as wide as pocket width in ventral view (Figs 8B, 9A), while almost four times wider in <i>P. urbanii</i> (Żabka 1981: fig. 25).</p> Etymology <p>The specific name is the patronym in honor of Dr David Kavanaugh, who collected the type specimen.</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♀; Yunnan Province, Nujiang Prefecture, Gongshan County, Nujiang State Nature Reserve, Qiqi, 9.9 km West of Gongshan; 27°42′55″ N, 98°33′55″ E; 2000 m a.s.l.; 9–14 Jul. 2000; Heng-mei Yan, David Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick and Da-zhi Dong leg.; HNU-00–QF–3A.</p> <p> <b>Paratypes</b> (29 ♀♀)</p> <p> CHINA – <b>Yunnan Province</b> • 1 ♀; same collection data as for holotype; HNU-00–QF–3P • 1 ♀; Lushui County, Yaojiaping He at Pianma Road 44.7 Km; 25°58′29″ N, 98°42′36″ E; 2516 m a.s.l.; 20 May 2005; Charles Griswold and David Kavanaugh leg.; disturbed forest; night collection in forest and along road cuts; HNU-CGY113 • 1 ♀; Lushui County, Pianma Township, Chanyan He, 9.3 km ESE of Pianma; 25°59′37″ N, 98°39′59″ E; 2470 m a.s.l.; 13–14 May 2005; Charles Griswold leg.; mixed broadleaf deciduous and evergreen forest; night collecting; HNU-CGY105 • 1 ♀; Tengchong County, Jietou Township, Datang Village, on the road from Daheling Ganjiao to Dashu Dujuan; 25°46′40″ N, 98°42′29″ E; 2430 m a.s.l.; 17 May 2006; Xian-jin Peng, Xin-ping Wang and Peng Hu leg.; HNU-Peng060517 • 1 ♀; Tengchong County, Jietou Township, Dahetou Lingganjiao; 25º44′22′′ N, 98º41′46′′ E; 2010 m a.s.l.; 16 May 2006; David Kavanaugh and Roberta Brett leg.; HNU-DHK– 2006–025A • 1 ♀; Tengchong County, Mingguang Township, Zizhi Village, up slope; 25°48′35″ N, 98°37′14′′ E; 2880 m a.s.l.; 25°47′53″ N, 98°37′26″ E; 2756 m a.s.l.; 19 May 2006; Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg.; down slope; HNU-YHY06 • 14 ♀♀; Tengchong County, China, Yunnan Province, Tengchong County, Jietou Township, 2 km down the road from 8# boundary post of Yakou; 25°48′30″ N, 98°37′14″ E; 2890 m a.s.l.; 23 May 2006; Xian-jin Peng, Xin-ping Wang and Peng Hu leg.; HNU-Wang060523–2 • 1 ♀; Longling County, Longjiang Township, Xiaoheishan Nature Reserve (Guchengshan Mountain); 24º49′43″ N, 98º45′33″ E; 2010 m a.s.l.; 25 May 2005; Heng-mei Yan and Ke-ji Guo leg.; general collecting along river; HNU-GKJ024 • 5 ♀♀; Tengchong County, Qushi Township, Heiyuhe Landscape; 25°13′18″ N, 98°34′18″ E; 1550 m a.s.l.; 2 Jun. 2006; Chang-min Yin, Jia-fang Hu, Ming-wei Yang and Shao-xian He leg.; HNU-YHY20–1 • 3 ♀♀; Tengchong County, Puchuan Township, Miguo Village; 24°45′40″ N, 98°32′13′′E; 1920 m a.s.l.; 5 Jun. 2006; Chang-min Yin, Jia-fang Hu, Ming-wei Yang and Shao-xian He leg.; HNU-YHY30.</p> Description <p> <b>Female</b> (holotype)</p> <p>BODY AND HEAD. Total length 5.30. Prosoma 2.00 long, 1.45 wide. Opisthosoma 3.30 long, 2.00 wide. Clypeus height 0.10. Carapace (Fig. 8A) light yellow; carapace margin and eye base black; ocular area brown, sparsely covered with long black hairs. Fovea reddish brown, radial groove indistinct. Eye diameter and interdistances: AME 0.45, ALE 0.25, PLE 0.25, AERW 1.40, PERW 1.30, EL 0.90. Sternum scutiform, covered with fine brown hairs; median area slightly bulged, yellowish brown, margin grayish brown. Clypeus light brown, covered with long light brown hairs. Endites and labium light brown, distal area yellowish brown, covered with grayish black hairs.</p> <p>CHELICERAE (Fig. 9C). Light brown, anterior base grayish black, distal area covered with long brown hairs, two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. Light brown to yellowish brown, annuli indistinct, spines thin. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of long ventral spines.</p> <p>LEG MEASUREMENTS. I = 3.15 (1.00, 1.25, 0.50, 0.40), II = 3.00 (1.00, 1.15, 0.50, 0.35), III = 3.45 (1.05, 1.20, 0.60, 0.60), IV = 4.00 (1.20, 1.40, 0.80, 0.60). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 8A). Oval, dorsum pale with many irregular twills; the posterior median area with three grayish black herring bones; posteriorly with a large grayish black marking; ventral light yellow, the median area with a discrete grayish black longitudinal band, sides with irregular grayish-black spots. Spinnerets dark brown.</p> <p>EPIGYNUM (Figs 8B–C, 9A–B). Longer than wide; the pockets angular, close to copulatory openings, interdistance of pockets almost as wide as pocket width in ventral view; copulatory ducts S-shaped; spermathecae slightly folded.</p> <p> <b>Male</b></p> <p>Unknown.</p> Distribution <p>China (Yunnan Province, Fig. 43).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 13-16, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
Ptocasius angulatus Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius angulatus</i> sp. nov. <p>urn:lsid:zoobank.org:act: ADD08C18-F5BB-443A-9F52-11DF387097FD</p> <p>Figs 1–2, 41</p> Diagnosis <p> The new species resembles <i>P. strupifer</i> Simon, 1901 (Peng 2020: fig. 275a–g), but can be distinguished by: (1) pockets present anteriorly parallel to copulatory openings in ventral view (Figs 1B, 2A), while pockets present in median area below copulatory openings in <i>P. strupifer</i> (Peng 2020: fig. 275f); (2) lateral margins of spermathecae extending dorso-laterally outside of copulatory ducts in dorsal view (Figs 1C, 2B), while spermathecae dorso-median inside of copulatory ducts in <i>P. strupifer</i> (Peng 2020: fig. 275f–g).</p> Etymology <p> The specific name derives from the Latin adjective ‘ <i>angulatus</i> ’ (‘provided with angles’).</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♀; Yunnan Province, 9 km Southeast of Pianma; 25º59′38″ N, 98º39′49″ E; 2400 m a.s.l.; 15–17 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–EP–1A.</p> <p> <b>Paratype</b> (1 ♀)</p> <p> CHINA – <b>Yunnan Province</b> • 1 ♀; same collection data as for holotype; HNU-98–EP– 1P.</p> Description <p> <b>Female</b> (holotype)</p> <p>BODY AND HEAD. Total length 4.10. Prosoma 2.10 long, 1.60 wide. Opisthosoma 2.30 long, 1.45 wide. Clypeus height 0.10. Carapace (Fig. 1A) brown, sides with dense white hairs; carapace margins and eye base black; ocular area covered with long rough dark brown hairs, anterior and lateral margins black with dense white hairs. Fovea short, reddish brown, cervical groove indistinct, radial groove dark brown, distinct. Eye diameter and interdistances: AME 0.50, ALE 0.25, PLE 0.25, AERW 1.50, PERW 1.40, EL 0.90. Sternum olive-shaped, densely covered with short brown hairs; median area bulged and light yellow, margin grayish yellow. Clypeus light brown with grayish black markings; anterior margin with long white hairs, narrow, height less than ½ AME. Endites and labium brown, distal area light brown, covered with black hairs.</p> <p>CHELICERAE (Fig. 2C). Dark brown, distal area covered with long brown hairs, two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. No visible markings or annuli, light yellowish brown to brown. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of long ventral spines.</p> <p>LEG MEASUREMENTS. I = 3.40 (1.10, 1.40, 0.50, 0.40), II = 3.30 (1.10, 1.30, 0.50, 0.40), III = 3.90 (1.30, 1.30, 0.80, 0.50), IV = 4.30 (1.40, 1.40, 1.00, 0.50). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 1A). Oval, dorsum yellowish brown with dark brown markings, sides with dark longitudinal bands, marginal area with one light incision; cardiac marking long and bar-shaped, the terminal area with black spots, mid-dorsally with two pairs of sigillae; ventral grayish white, the median area with a gray longitudinal band, lateral dark brown. Spinnerets brown.</p> <p>EPIGYNUM (Figs 1B–C, 2A–B). Longer than wide; with angular pockets present antero-laterally; copulatory openings longitudinal, outline almost U-shaped, spermathecae sinuous, much complicated and close to each other, extending dorso-laterally, the distance between the margins of spermathecae indistinctly wider than that between the copulatory ducts.</p> <p> <b>Male</b></p> <p>Unknown.</p> Distribution <p>China (Yunnan Province, Fig. 41).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 5-7, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
Ptocasius umbellulatus Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius umbellulatus</i> sp. nov. <p>urn:lsid:zoobank.org:act: A7702891-DDE2-4044-BFB8-298276C98381</p> <p>Figs 34–35, 45</p> Diagnosis <p> The new species resembles <i>P. davidi</i> sp. nov. (Figs 8–9), but can be distinguished by: (1) anterior interval of copulatory openings slightly wider than posterior interval in ventral view (Figs 34B, 35A), while three times as wide as posterior interval in <i>P. davidi</i> (Figs 8B, 9A); (2) posterior margin of pockets almost two times as wide as long in ventral view (Figs 34B, 35A), while almost as long as wide in <i>P. davidi</i> (Figs 8B, 9A); (3) copulatory ducts L-shaped in ventral view (Figs 34B, 35A), while S-shaped in <i>P. davidi</i> (Figs 8B, 9A).</p> Etymology <p> The specific name is derived from the combination of the Latin noun ‘ <i>umbella</i> ’ (‘parasol’) and the adjective ‘ <i>latus</i> ’ (‘broad’), referring to the form of the pockets and copulatory tube.</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♀; Yunnan Province, Nujiang Prefecture, Gongshan County, Nujiang State Nature Reserve, Qiqi, 9.9 km West of Gongshan; 27°42′55″ N, 98°33′55″ E; 2000 m a.s.l.; 9–14 Jul. 2000; Heng-mei Yan, David Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick and Da-zhi Dong leg.; HNU-00–QF–9A.</p> <p> <b>Paratypes</b> (25 ♀♀)</p> <p> CHINA – <b>Yunnan Province</b> • 1 ♀; same collection data as for holotype; HNU-00–QF–10P • 1 ♀; 0.4 km Southeast from Shibali, guesthouse; 27°09′48″ N, 98°46′55″ E; 2475 m a.s.l.; 5 May 2004; Charles Griswold and David Kavanaugh leg.; HNU-CGY30 • 5 ♀♀; Gongshan County, Dulongjiang Township, Mokewang bridge; 27º50′17″ N, 98º19′15″ E; 1455 m a.s.l.; 6–7 Nov. 2004; Guo Tang leg.; HNUTang–04–08 • 1 ♀; Gongshan County, Dabadi of new road; 27º28′30″ N, 98º18′04″ E; 3013 m a.s.l.; 12 Nov. 2004; Guo Tang leg.; HNU-Tang–04–11 • 2 ♀♀; Gongshan County, Heiwadi of new road; 27º28′15″ N, 98º21′19″ E; 1850 m a.s.l.; 13–16 Nov. 2004; Guo Tang leg.; HNU-Tang–04–12B • 4 ♀♀; Lushui County, Pianma Township, Chanyan He, 9.3 km Southeast of Pianma; 25°59′37″ N, 98°39′59″ E; 2470 m a.s.l.; 14 May 2005; Charles Griswold leg.; mixed broadleaf deciduous and evergreen forest; beating understory vegetation; HNU-CGY107 • 1 ♀; Tengchong County, Jietou Township, Datang Village, Daheling Ganjiao camping site; 25°25′39″ N, 98°24′46″ E; 1952 m a.s.l.; 20 May 2006; Xin-ping Wang and Peng Hu leg.; HNU-Wang060520 • 3 ♀♀; Longling County, Longjiang Township, Xiaoheishan Nature Reserve (Guchengshan Mountain); 24º49′43″ N, 98º45′33″ E; 2010 m a.s.l.; 26 May 2005; Heng-mei Yan leg.; in the forest; HNU-GKJ026–3 • 2 ♀♀; Fugong County, Lumadeng Township, Yakou of old Shibali; 27º03′51″ N, 98º45′04″ E; 3270 m a.s.l.; 13 Aug. 2005; Guo Tang leg.; HNUTang–05–06A • 1 ♀; Tengchong County, Qushi Township, Daba Village; 25°17′13″ N, 98°42′10″ E; 2170 m a.s.l.; 14 May 2006; Chang-min Yin, Jia-fang Hu and Ming-wei Yang leg.; HNU-YHY01 • 1 ♀; Tengchong County, Mingguang Township, Zizhi Village; 25°46′57″ N, 98°36′58″ E; 2200 m a.s.l.; 21 May 2006; leg Ming-wei Yang leg.; HNU-YHY10 • 1 ♀; Gongshan County, Du Longjiang Township, Maku; 27º41′07″ N, 98º18′15″ E; 1814 m a.s.l.; 28 Aug. 2006; Peng Hu leg.; HNU-Hu060828 • 1 ♀; Gongshan County, Dulongjiang Township, Maku; 27º40′42″ N, 98º17′50″ E; 1970 m a.s.l.; 30 Aug. 2006; Peng Hu leg.; HNU-Hu060830 • 1 ♀; Gongshan County, Dulongjiang Township, Maku; 27º41′09″ N, 98º17′47″ E; 2097 m a.s.l.; 2 Sep. 2006; Peng Hu leg.; HNU-Hu060902–2.</p> Description <p> <b>Female</b> (holotype)</p> <p>BODY AND HEAD. Total length 5.80. Prosoma 2.10 long, 1.60 wide. Opisthosoma 3.70 long, 2.20 wide. Clypeus height 0.10. Carapace (Fig. 34A) light brown, carapace margin and eyes base black; with a pair of dark longitudinal bands extending from back of ALE to retromargin of carapace; ocular area covered with sparse long black hairs, lateral margins black. Fovea reddish brown, longitudinal bar-shaped. Radial groove distinct; ocular area sparsely covered with long black hairs. Eye diameter and interdistances: AME 0.50, ALE 0.25, PLE 0.25, AERW 1.45, PERW 1.35, EL 0.90. Sternum scutiform, covered with fine grayish black hairs; the median area slightly bulged, greenish brown; margin grayish brown. Clypeus light brown with long brown hairs covering the area between the AMEs and a row of long white hairs covering the promargin. Endites and labium light brown, distal area covered with grayish black hairs.</p> <p>CHELICERAE (Fig. 35C). Brown, distal area covered with dense long dark brown hairs; two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. Yellowish brown to dark brown, annuli grayish black; spines short. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of long ventral spines.</p> <p>LEG MEASUREMENTS. I = 3.65 (1.15, 1.50, 0.50, 0.50), II = 3.40 (1.10, 1.30, 0.50, 0.50), III = 4.10 (1.30, 1.30, 0.80, 0.70), IV = 4.60 (1.40, 1.50, 0.90, 0.70). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 34A). Long ovoid, dorsum light yellow; each side with a grayish black longitudinal band and black twills; the posterior portion with three grayish black herring bones, the posterior end with a grayish black spot; with two pairs of small, reddish brown sigillae; ventral light yellow; the median area with a grayish black longitudinal band, sides with irregular grayish black markings and twills. Spinnerets dark brown.</p> <p>EPIGYNUM (Figs 34B–C, 35A–B). As long as wide; the pockets present below, relatively diverging from copulatory openings, posterior margin of pockets almost two times as wide as long; copulatory openings V-shaped; copulatory ducts L-shaped in ventral view.</p> <p> <b>Male</b></p> <p>Unknown.</p> Distribution <p>China (Yunnan Province, Fig. 45).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 47-50, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
Ptocasius circulus Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius circulus</i> sp. nov. <p>urn:lsid:zoobank.org:act: 56D8C9A4-03B4-4646-80DC-49E5A3D730A2</p> <p>Figs 3–4, 42</p> Diagnosis <p> The new species resembles <i>P. strupifer</i> Simon, 1901 (Peng 2020: fig. 275f) in having the similar outline of copulatory openings and the position of pockets, but can be distinguished by: spermathecae relatively well folded, complicated in dorsal view (Figs 3C, 4B), while globular in <i>P. strupifer</i> (Peng 2020: fig. 275g).</p> Etymology <p> The specific name is derived from the Latin noun ‘ <i>circulus</i> ’ (‘circle’) in apposition, referring to the circular outline of the atrium.</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♀; Yunnan Province, Nujiang Prefecture, Gongshan County, Nujiang State Nature Reserve, Qiqi, 9.9 km West of Gongshan; 27°42′55″ N, 98°33′55″ E; 2000 m a.s.l.; 9–14 Jul. 2000; Heng-mei Yan, David Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick and Da-zhi Dong leg.; HNU-00–QF–1.</p> <p> <b>Paratype</b> (1 ♀)</p> <p> CHINA – <b>Yunnan Province</b> • 1 ♀; Nujiang Prefecture, Gongshan County, Danzhu, 13.5 km Southwest of Gongshan; 27°37′50″ N, 98°37′14″ E; 2700 m a.s.l.; 30 Jun.–5 Jul. 2000; David Kavanaugh, Charles Griswold, Hong-bin Liang, Darrell Ubick, Heng-mei Yan and Da-zhi Dong leg.; HNU-00–GD–1.</p> Description <p> <b>Female</b> (holotype)</p> <p>BODY AND HEAD. Total length 6.00. Prosoma 2.50 long, 1.85 wide. Opisthosoma 3.50 long, 2.20 wide. Clypeus height 0.10. Carapace (Fig. 3A) light brown; carapace margin and eye base black; ocular area dark brown, lateral margins black sparsely with long brown hairs. Fovea reddish brown, cervical and radial groove black, distinct. Eye diameter and interdistances: AME 0.53, ALE 0.30, PLE 0.30, AERW 1.70, PERW 1.65, EL 1.10. Sternum scutiform, covered with short brown hairs; the median area slightly bulged, yellowish brown, with dark brown margin. Clypeus dark brown, between sides and AMEs with three clusters long dark brown hairs; promargin with row of long hairs. Endites and labium brown, distal area light brown, covered with grayish black hairs.</p> <p>CHELICERAE (Fig. 4C). Dark brown, distal area covered with long brown hairs, two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. Grayish black with black annuli, densely covered with grayish black hairs, bearing long and strong spines. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of long ventral spines.</p> <p>LEG MEASUREMENTS. I = 4.35 (1.35, 1.70, 0.70, 0.60), II = 4.00 (1.30, 1.50, 0.60, 0.60), III = 4.80 (1.45, 1.70, 0.90, 0.75), IV = 5.35 (1.60, 1.85, 1.20, 0.70). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 3A). Oval, dorsum long oval, light yellow, each side with a wide grayish black longitudinal band, the marginal area with a light incision; the posterior portion with five light markings, mid-dorsally with two pairs of sigillae; ventral light yellow, the median area with a grayish black longitudinal band, sides with irregular grayish black markings and twills. Spinnerets dark brown.</p> <p>EPIGYNUM (Figs 3B–C, 4A–B).Almost as long as wide; the pockets triangular, almost touching copulatory openings; epigynum with a transverse W-shaped band between connecting the bases of copulatory openings; atrium outline almost circular; spermathecae folded, much complicated.</p> <p> <b>Male</b></p> <p>Unknown.</p> Distribution <p>China (Yunnan Province, Fig. 42).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 7-9, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
Malaxis henanensis D. H. Peng & K. Yang 2023, sp. nov.
No full textMalaxis henanensis D.H.Peng & K.Yang, sp. nov. (Figs 1, 2) Type:— CHINA. Henan Province: Neixiang County, 1722 m, Baotianman National Nature Reserve, 26 Jul 2021, Peng M001 (FAFU). The new species differs from M. malipoensis in height, inflorescence structure, number of leaves and flowers, colour of flower bracts, long-ovate sepals, longer petals and ovoid, apically narrow lip (Table 1). Terrestrial, erect herbs, 9–25 cm. Leaves usually 2, one larger, base contracted into petiole, clasping, ovate to long ovoid, apex attenuate, 5.0–12.0 × 2.5–5.0 cm. Inflorescence arising from leaf axils, erect, 12–22 cm long, 3.0– 3.5 mm in diameter; racemes 10–15 cm long, 40–80 flowers; floral bracts lanceolate, 1.5–2.0 mm long, yellowish green; pedicel and ovary 3.0– 3.5 mm long, pedicels twisted in a right-handed spiral; fully open flowers 3 mm in diameter, yellowish green; sepals subequal, long-ovate, 1.5–1.8 × 0.7–1.0 mm; petals linear, 1.3–1.5 × 0.2–0.3 mm; lip uppermost (non-resupinate), ovoid, apically narrow, 1.3–1.5 × 0.9–1.2 mm; disk oblate, slightly concave in the middle, both margins hypertrophic and warty, with a short auricles on both sides of the base; column 0.6 mm long; pollinia 4, in 2 pairs, waxy. Phenology:— Flowering July and August. Distribution and ecology:— Known only from Neixiang County, Henan Province, growing in humus-rich soil. Etymology:— Named after Henan Province. Conservation:— Although we investigated areas in the southern and western hilly regions of Henan that would be suitable for this orchid, we did not find plants. The greatest threat to the survival of the new species in the area is human activity and being eaten by wild boars. Notes:— Most Malaxis species have small greenish flowers (Jermakowicz et al. 2022), which also applies to M. henanensis and M. moliponesis (Table 1).Published as part of Shi, Xiao-Ling, Kang, Yang, Liu, Yu-Ying, Tu, Song, Peng, Hong-Jun, Liu, Zhong-Jian & Peng, Dong-Hui, 2023, Malaxis henanensis (Orchidaceae, Malaxideae), a new species from China, pp. 293-295 in Phytotaxa 589 (3) on pages 293-295, DOI: 10.11646/phytotaxa.589.3.9, http://zenodo.org/record/777703
Facial expression recognition and expression intensity estimation
No full textSeventy years ago, psychologist categorized the facial expression into seven categories: angry, disgust, fear, happiness, sadness, surprise and neutral. Through analyzing the expression, psychologists want to predict the emotions behind the expression. Due to all kinds of potential applications on human emotion analysis, automatical analysis of human affective expressions has attracted increasing attention from researchers in psychology, computer science, linguistics, neuroscience, and related disciplines. Researchers have done lots of works on this topic in the past thirty years, and proposed lots of promising approaches. Although many works have been done on this topic, these existing methods typically handle deliberately displayed and exaggerated expression of prototypical emotions. There are still some hard problems not solved well for the real system to handle naturally occurring emotions such as exploring discriminative features, time wrapping, and expression intensity estimation. Our work focuses on these real problems, analyzes the challenges in the real system and proposes the sounded solutions for advancing human affect sensing technology.Ph.D.Includes bibliographical referencesIncludes vitaby Peng Yan
Ptocasius longapophysis Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius longapophysis</i> sp. nov. <p>urn:lsid:zoobank.org:act: 9D525100-B97A-4CD7-8383-FEB52FE4588A</p> <p>Figs 21–23, 42</p> Diagnosis <p> The male of the new species resembles that of <i>P. pseudoflexus</i> (Liu, Yang & Peng, 2016) (Liu <i>et al.</i> 2016: figs 13–17), but can be distinguished by: (1) tibial apophysis band-shaped, terminal end extending beyond anterior margin of genital bulb in ventral view (Figs 21B–C, 23A–B), while finger-shaped and retained below anterior margin of genital bulb in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 14–17). The female of the new species resembles that of <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 19–24), but can be distinguished by: (1) pockets eyebrow-shaped, away from copulatory openings in ventral view (Figs 22B, 23D), while angular-shaped, close to copulatory openings in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 20, 22); (2) top margins of spermathecae close to copulatory openings in dorsal view (Figs 22C, 23E), while away from copulatory openings in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 21, 23).</p> Etymology <p> The specific name is derived from the Greek noun ‘ <i>apophysis</i> ’ (‘prominence’) in combination with the Latin adjective ‘ <i>longus</i> ’ (‘long’), referring to the long tibial apophysis.</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♂; Yunnan Province, Tengchong County, Houqiao Township, 2 km down the road from Guyong Forestry Station; 25°23′44″ N, 98°18′44″ E; 2374 m a.s.l.; 27 May 2006; Xin-ping Wang and Peng Hu leg.; HNU-Wang060527–3A.</p> <p> <b>Paratypes</b> (37 ♂♂, 9 ♀♀)</p> <p> CHINA – <b>Yunnan Province</b> • 11 ♂♂, 6 ♀♀; same collection data as for holotype; HNU-Wang060527–3P • 1 ♂; Tengchong County, Old Pass, 28 km East of Tengchong; 24º57′00″ N, 98º45′00″ E; 2300 m a.s.l.; 26–31 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–OP–1 • 2 ♂♂, 1 ♀; Tengchong County, Houqiao Township, Danzha Forest Station, Zhaobitang Village, 25°32′16″ N, 98°12′33″ E; 2480 m a.s.l.; 29 May 2006; Xin-ping Wang and Peng Hu leg.; HNU-Wang060529–1 • 7 ♂♂; Baoshan City, Bawan Village, 40 km of the road Bawan to Tengchong; 24º33′16″ N, 98º27′11″ E; 2320 m a.s.l.; 16 Oct. 2003; Guo Tang leg.; HNU-Tang031016 • 14 ♂♂, 1 ♀; Baoshan City, Bawan Village, Luoshuidong cave of Yakou, 41 km of the Road Bawan to Tengchong; 24º33′44″ N, 98º27′04″ E; 2440 m a.s.l.; 15 Oct. 2003; Guo Tang leg.; HNU-Tang031015–2 • 2 ♂♂, 1 ♀; Baoshan City, Bawan Village, 41–42 km of the road Bawan to Tengchong (Yakou); 24º33′22″ N, 99º27′05″ E; 2416 m a.s.l.; 13 Oct. 2003; Guo Tang leg.; HNU-Tang031013.</p> Description <p> <b>Male</b> (holotype)</p> <p>BODY AND HEAD. Total length 4.34. Prosoma 2.18 long, 1.62 wide. Opisthosoma 2.33 long, 1.36 wide. Clypeus height 0.15. Carapace (Fig. 21A) brown, carapace margin and eyes base black; lateral area of carapace and median area of thoracic region yellowish brown; ocular area covered with dense hairs, anterior and lateral margins black, covered with long brown hairs. Fovea reddish brown and sulciform. Cervical groove indistinct, radial groove brown. Eye diameters and interdistances: AME 0.40, ALE 0.20, PLE 0.20, AERW 1.35, PERW 1.20, EL 0.90. Sternum scutiform, yellowish brown, covered with short brown hairs; marginal areas brown. Clypeus dark brown. Endites and labium light yellow, distal area densely covered with grayish hairs.</p> <p>CHELICERAE (Fig. 23C). Reddish brown, covered with white hairs, two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. Brown, sparsely covered with short brown hairs, bearing numerous short spines. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of ventral spines.</p> <p>LEG MEASUREMENTS. I = 4.20 (1.30, 1.60, 0.80, 0.50), II = 3.70 (1.20, 1.40, 0.60, 0.50), III = 4.10 (1.30, 1.40, 0.80, 0.60), IV = 4.50 (1.40, 1.60, 0.90, 0.60). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 21A). Almost oval, dorsum yellowish brown, densely covered with white hairs and sparse brown hairs; each side with a discontinuous gray longitudinal band, mid-dorsally with two pairs of sigillae; the posterior median with two discontinuous herring bones; ventral yellow, covered with white hairs; the median area with a gray longitudinal band; ventral side with little black twills. Spinnerets dark brown, densely covered with long brown hairs.</p> <p>PALP (Figs 21B–C, 23A–B). Longer than wide; embolus slender and sinuous, as long as the genital bulb, originates at about 10:00 o’clock position; genital bulb with membranous structure, the terminal area with a square genital lobe; tibial apophysis long, band-shaped, apex extending beyond genital bulb margin.</p> <p> <b>Female</b> (paratypes)</p> <p>BODY AND HEAD. Total length 4.55. Prosoma 1.92 long, 1.40 wide. Opisthosoma 2.62 long, 1.57 wide. Clypeus high 0.09. Carapace (Fig. 22A) yellowish white, sides yellowish brown; carapace margin and eyes base black; ocular area densely covered with hairs, anterior and lateral margins black, covered with long brown hairs. Fovea reddish brown and sulciform, covered with white hairs. Cervical groove indistinct, radial groove dark brown. Eye diameters and interdistances: AME 0.37, ALE 0.17, PLE 0.20, AERW 0.90, PERW 1.00, EL 0.80. Sternum scutiform, yellowish brown, margin darker, densely covered with brown hairs. Clypeus dark brown. Endites and labium dark brown, covered with long brown hairs; distal area yellowish brown with dense grayish brown hairs.</p> <p>CHELICERAE (Fig. 23F). Dark brown, covered with black hairs, distal area yellowish brown, two promarginal teeth and one retromarginal denticle.</p> <p>LEGS. Yellowish brown, sparsely covered with long yellowish-brown hairs, bearing numerous short spines; tibiae I strong, dark brown, covered with long brown hairs. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of ventral spines.</p> <p>LEG MEASUREMENTS. I = 3.04 (0.93, 1.20, 0.50, 0.41), II = 2.81 (0.91, 1.07, 0.40, 0.43), III = 3.38 (1.12, 1.13, 0.62, 0.51), IV = 3.77 (1.29, 1.15, 0.78, 0.55). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 22A). Oval, the posterior portion slightly pointed. Dorsum yellowish white, densely covered with white and sparse long brown hairs; margin sparsely covered with long brown hairs; the median area yellowish white, sparsely covered with brown dot spots; each side with a wide longitudinal band; the posterior inner with four inclined markings; the posterior median with four to five continuity herring bones. Ventral yellowish white, densely covered with white hairs; the median area with a grayish longitudinal band; sides with black twills. Spinnerets dark brown, densely covered with long brown hairs.</p> <p>EPIGYNUM (Figs 22B–C, 23D–E). Longer than wide; the pockets eyebrow-shaped, away from copulatory openings; copulatory openings about arc-shaped; atrium about rectangular in dorsal view; spermathecae large, close to each other, the top margins of spermathecae close to copulatory openings.</p> Distribution <p>China (Yunnan Province, Fig. 42).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 29-34, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
Meta yinae Wang & Zhou & Irfan & Yang & Peng 2020, sp. nov.
No full textMeta yinae sp. nov. urn:lsid:zoobank.org:act: 07066DE2-94F3-431C-A28C-5ED596CA782B Figs 1 G–H, 13–15 Differential diagnosis Meta yinae sp. nov. can be distinguished from the other Chinese Meta species by the wide conductor, the Y-shaped cymbial ectobasal process of the male palp (Figs 13, 15 A–C), and the bean-shaped spermathecae of the epigyne (Figs 14B, 15E). Meta yinae sp. nov. resembles M. yani sp. nov. (Figs 10– 12), but can be distinguished from the latter by the following characters. Metaine embolic apophysis not bifurcated in ventral view in M. yinae sp. nov. (Figs 13D, 15B), bifurcated in M. yani sp. nov. (Figs 10D, 12B). The spine-like apophysis of the cymbial ectobasal process arises from the top of CEP and points towards the genital bulb in M. yinae sp. nov. (Figs 13B, 15C), it forms the median portion of CEP and points towards the cymbium in M. yani sp. nov. (Figs 10B, 12C). The posterior margin of the epigynal plate almost round in M. yinae sp. nov. (Figs 14A, 15D), centrally incised in M. yani sp. nov. (Figs 11A, 12D). Spermathecae longitudinal, present posteriorly in M. yinae sp. nov. (Figs 14B, 15E), whereas horizontal, present anteriorly in M. yani sp. nov. (Figs 11B, 12E). Etymology The specific epithet is taken from the family name of Prof. Changmin Yin, in honour of her great contribution to Chinese arachnology; noun. Type material Holotype CHINA • ♂; Yunnan Province, Fugong County, Pihe Township, Yueliangtian Village; 26°34′04″ N, 98°54′32″ E; alt. 1520 m; 20–24 Aug. 2005; G. Tang leg.; HNU-Tang-05-08. Paratypes (15 ♂♂ and 18 ♀♀) CHINA – Yunnan Province – Fugong County • 7 ♂♂, 13 ♀♀; same collection data as for holotype; HNU-Tang-05-08 • 1 ♂; Lumadeng Township, Yaping Village, 7.2 km up of Shibali; 27°10′47″ N, 98°43′35″ E; alt. 3059 m; 4 May 2004; H.M. Yan and G.X. Peng leg.; HNU-20040504-3 • 1 ♂, 3 ♀♀; 10.1–11.5 km from Shibali to Yaping; 27°12′02″ N, 98°42′49″ E– 27°12′24″ N, 98°43′03″ E; alt. 3225– 3290 m; 8 May 2004; C. Griswold and D.H. Kavanaugh leg.; HNU-CGY40 • 1 ♀; Lumadeng Township, Yaping Village, Yaping Yakou; 27°10′47″ N, 98°43′35″ E; alt. 3280– 3100 m; 8 May 2004; H.M. Yan leg.; HNU-20040508. – Lushui County • 2 ♂♂; Luzhang Township, Yaojiaping Forest Station; 25°58′31″ N, 98°42′36″ E; alt. 2515 m; 20 May 2005; K.J. Guo leg.; HNU-GKJ013. – Longyang County • 1 ♂; Bawan Township, Sancha River, Luoshuidong area; 24°55′33″ N, 98°45′29″ E; alt. 2300 m; 3 June 2005; Charles Griswold leg.; HNU-CGY137. – Tengchong County • 1 ♂; Jietou Township, No. 8 Boundary Post of Yakou; 25°48′32″ N, 98°37′15″ E; alt. 2890 m; 23 May 2006; X.J. Peng, X.P. Wang and P. Hu leg.; HNU-Wang060523-2. – Gongshan County • 1 ♀; Cicai Township, Dahaituo; 27°47′04″ N, 98°27′37″ E; alt. 3363 m; 13 Aug. 2006; P. Hu leg.; HNU-Hu060813 • 1 ♂; Qiqi No. 12 bridge; 27°42′59″ N, 98°30′11″ E; alt. 2738 m; 28 Sep. 2007; X.J. Peng leg.; HNU-20070928 • 1 ♂; Qiqi Dongshaofang; 27°41′43″ N, 98°29′07″ E; alt. 3208 m; 29 Sep. 2007; X.J. Peng leg.; HNU-20070929. Description Male (holotype, Fig. 1G) MEASUREMENTS. Total length 5.29. Prosoma 2.45 long, 2.00 wide; opisthosoma 3.28 long, 1.95 wide. Eye sizes and interdistances: AME 0.14, ALE 0.16, PME 0.15, PLE 0.16; AME–AME 0.09, AME–ALE 0.13, PME–PME 0.09, PME–PLE 0.19, ALE–PLE 0.03. MOA 0.44 long, front width 0.37, back width 0.42. Clypeus 0.11 high. CHELICERAE. Strong, brown, with three promarginal and four retromarginal teeth. GNATHOCOXAE AND LABIUM. Brown, longer than wide. DORSUM OF PROSOMA. Yellowish brown, with longitudinal dark brown band. Cervical groove distinct, radial furrows indistinct (Fig. 1G). STERNUM. Brown, scutellate, with sparse brown hairs. LEGS. Brown, with annuli. Length of legs: I, 13.40 (3.82, 4.68, 3.41, 1.49); II, 10.48 (3.02, 3.73, 2.51, 1.22); III, 6.00 (2.01, 1.89, 1.39, 0.71); IV, 7.71 (2.50, 2.45, 1.91, 0.85). Leg formula: 1243. OPISTHOSOMA. Oval, dorsum with two pairs of sigillae, yellowish brown, with several irregular black markings (Fig. 1G). Venter of opisthosoma yellowish brown, with black markings. PALP (Figs 13, 15 A–C). Cymbial ectobasal process Y-shaped, with hook-shaped tip. Paracymbium strong and rod-like, with sparse long, brown hairs. Metaine embolic apophysis longer than wide, tongueshaped. Embolus long, thin, proximally covered by conductor. Conductor longer than wide, slightly curved, arising meso-retrolaterally from bulb, extending clockwise, with a membranous end. Female (HNU-Tang-05-08, Fig. 1H) MEASUREMENTS. Total length 6.17. Prosoma 2.44 long, 2.09 wide; opisthosoma 4.25 long, 3.38 wide. Eye sizes and interdistances: AME 0.15, ALE 0.18, PME 0.17, PLE 0.16; AME–AME 0.09, AME–ALE 0.14, PME–PME 0.10, PME–PLE 0.18,ALE–PLE 0.04. MOA anterior width 0.39, posterior width 0.45, anterior width 0.46. Clypeus 0.12 high. LEGS. Leg measurements: I, 11.06 (3.20, 3.86, 2.73, 1.27); II, 8.53 (2.52, 3.01, 2.03, 0.97); III, 5.07 (1.63, 1.68, 1.10, 0.66); IV, 7.18 (2.35, 2.45, 1.65, 0.73).Leg formula: 1243. Other morphological characteristics same as in male. EPIGYNE (Figs 14, 15 D–E). Copulatory ducts thick and short. Spermathecae bean-shaped, present posteriorly. Fertilization ducts relatively long and thick. Variation The total length in male specimens examined ranges from 4.79 to 5.29, in female specimens from 4.95 to 6.74. Distribution China, Yunnan Province (Fugong, Lushui, Longyang, Tengchong, Gongshan) (Fig. 16).Published as part of Wang, Luyu, Zhou, Guchun, Irfan, Muhammad, Yang, Sufang & Peng, Xianjin, 2020, Five new species of Meta Koch, 1836 (Araneae: Tetragnathidae) from Gaoligong Mountains, China, pp. 1-25 in European Journal of Taxonomy 624 on pages 18-23, DOI: 10.5852/ejt.2020.624, http://zenodo.org/record/375114
Ptocasius tengchongensis Yang & Peng 2023, sp. nov.
No full text<i>Ptocasius tengchongensis</i> sp. nov. <p>urn:lsid:zoobank.org:act: BCCDBA23-A7BE-42DB-97D6-68C4F5C8C0DF</p> <p>Figs 31–33, 44</p> Diagnosis <p> The male of the new species resembles that of <i>P. pseudoflexus</i> (Liu, Yang & Peng, 2016) (Liu <i>et al.</i> 2016: figs 13–17), but can be distinguished by: (1) embolus originating at about 8:00 o’clock position in ventral view (Figs 31B, 33A), while originating at about 9:00 o’clock in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 15, 17); (2) the median area of the genital bulb with a conic bulge in retrolateral view (Figs 31C, 33B), while absent in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 14, 16). The female of the new species resembles that of <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 19–24), but can be distinguished by: (1) pockets close to copulatory openings, almost two times as wide as long in ventral view (Figs 32B, 33D), while away from posterior margin of copulatory openings, almost as long as wide in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 20, 22); (2) top of pockets below anterior margin of copulatory openings in ventral view (Figs 32B, 33D), while above anterior margin of copulatory openings in <i>P. pseudoflexus</i> (Liu <i>et al.</i> 2016: figs 20, 22).</p> Etymology <p>The specific name is derived from the type locality Tengchong County.</p> Type material <p> <b>Holotype</b></p> <p>CHINA • ♂; Yunnan Province, Tengchong County, Old Pass, 28 km East of Tengchong; 24º57′00″ N, 98º45′00″ E; 2300 m a.s.l.; 26–31 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–OP–2A.</p> <p> <b>Paratypes</b> (6 ♂♂, 6 ♀♀)</p> <p> CHINA – <b>Yunnan Province</b> • 4 ♂♂, 3 ♀♀; same collection data as for holotype; HNU-98–OP–2P • 2 ♀♀; Tengchong County, Nankang; 24º49′00″ N, 98º46′59″ E; 2100 m a.s.l.; 4–7 Nov. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-NK–21 • 1 ♂; Tengchong County, Old Pass, 28 km East of Tengchong; 24º57′00″ N, 98º45′00″ E; 2300 m a.s.l.; 26–31 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–OP–23 • 1 ♀; Tengchong County, Old Pass, 28 km East of Tengchong; 24º57′00″ N, 98º45′00″ E; 2300 m a.s.l.; 26–31 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–OP–24 • 1 ♂; 9 km Southeast of Pianma; 25º59′38″ N, 98º39′49″ E; 2400 m a.s.l.; 15–17 Oct. 1998; Charles Griswold, David Kavanaugh and Chun-lin Long leg.; HNU-98–EP–34.</p> Description <p> <b>Male</b> (holotype)</p> <p>BODY AND HEAD. Total length 5.40. Prosoma 2.60 long, 1.90 wide. Opisthosoma 2.80 long, 1.70 wide. Clypeus height 0.15. Carapace (Fig. 31A) brown, sides with white hairs; carapace margin and eyes base black; three yellowish-brown longitudinal bands present in median and lateral areas, respectively; ocular area with black lateral margins, anterior area covered with dense white and sparse brown rough hairs. Fovea reddish brown, line-shaped. Cervical groove indistinct, radial groove dark brown. Eye diameter and interdistances: AME 0.50, ALE 0.30, PLE 0.30, AERW 1.70, PERW 1.60, EL 1.10. Sternum scutiform, densely covered with short brown hairs; margin dark brown. Clypeus dark brown, covered with long brown hairs, promargin with sparse hairs. Endites have a brown base, distal area greenish brown, densely covered with dark brown hairs. Labium dark brown, distal area brown, covered with dark brown hairs.</p> <p>CHELICERAE (Fig. 33C). Brown to dark brown, covered with brown hairs; two promarginal teeth one retromarginal denticle.</p> <p>LEGS. Yellowish brown to dark brown, tibiae I dark brown, femur dark brown; bearing numerous long spines. Tibiae I and II with three pairs of long ventral spines, metatarsi I and II with two pairs of ventral spines.</p> <p>LEG MEASUREMENTS. I = 4.55 (1.65, 2.20, 1.00, 0.70), II = 4.80 (1.60, 1.80, 0.80, 0.60), III = 4.90 (1.60, 1.60, 1.00, 0.70), IV = 5.40 (1.75, 1.75, 1.20, 0.70). Leg formula: IV–III–II–I.</p> <p>ABDOMEN (Fig. 31A). Cylindric, dorsum yellowish brown, with three pairs of sigillae; each side with a grayish black longitudinal band and many black twills; the posterior portion with arc markings; ventral yellowish white with many black spots; the median area with a black longitudinal band, sides with few black twills. Spinnerets dark brown.</p> <p>PALP (Figs 31B–C, 33A–B). Longer than wide; embolus slender, originating at about 8:00 o’clock position; genital lobe protrusive; the median area of genital bulb with a triangular outgrowth in retrolateral view; tibial apophysis needle-shaped.</p> <p> <b>Female</b> (paratypes)</p> <p>BODY AND HEAD. Total length 5.40. Prosoma 2.40 long, 1.85 wide. Opisthosoma 3.00 long, 1.90 wide. Clypeus (Fig. 32A) height 0.15. Eye diameter and interdistances: AME 0.50, ALE 0.30, PLE 0.25, AERW 1.65, PERW 1.55, EL 1.00. Clypeus height 0.15.</p> <p>LEG MEASUREMENTS. I = 4.30 (1.40, 1.70, 0.70, 0.50), II = 3.90 (1.30, 1.50, 0.60, 0.50), III = 4.80 (1.40, 1.70, 0.90, 0.80), IV = 5.20 (1.60, 1.90, 1.00, 0.70). Leg formula: IV–III–I–II.</p> <p>ABDOMEN (Fig. 32A). Female body slightly colored, markings and other morphological features same as in male.</p> <p>EPIGYNUM (Figs 32B–C, 33D–E). As long as wide; pockets long angular, distinctly close to copulatory openings; top of pockets almost close to anterior margin of copulatory openings; copulatory openings ()-shaped.</p> Distribution <p>China (Yunnan Province, Fig. 44).</p>Published as part of <i>Yang, Su-Fang & Peng, Xian-Jin, 2023, A review of the Ptocasius Simon, 1885 spiders of Gaoligong Mountains, China (Araneae: Salticidae), pp. 1-61 in European Journal of Taxonomy 903 (1)</i> on pages 43-47, DOI: 10.5852/ejt.2023.903.2321, <a href="http://zenodo.org/record/10119638">http://zenodo.org/record/10119638</a>
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