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Sinoderces nawanensis Li & Li, sp. nov. (Figs 9–10, 15) Material examined. Holotype male, China, Guangxi Zhuang Autonomous Region, Nanning City, Longan County, Nanxu Town, Nawan Village, cave without name (23º12.528’N, 107º35.020’E; elev. 113 m), 13 May 2015, leg. F. Li & Z. Chen. Paratypes. 1 male, 2 females, same data as holotype (IZCAS). Etymology. The species name is an adjective refering to the type locality. Diagnosis. The male of this species is easily recognized by the sickle-shaped embolus (Figs 9 A–D). Females of the two species of Sinoderces Li & Li, sp. nov. are very similar but can be distinguished as follows. The female of this species is diagnosed by the elongate, curved spermathecae which narrow distally (Fig. 10A) (versus spermathecae of same width throughout their length in S. exilis). Description. Male (holotype). Total length 2.02; carapace 0.70 long, 0.75 wide; abdomen 1.13 long, 0.63 wide. Carapace round, yellow with some brown bands of differing width (Fig. 10C). Fovea shallow. Chelicerae yellow. Cheliceral promargin with distinct lamina and no teeth, retromargin with one small tooth, posterior surface of fang with 12 small denticles. Clypeus slanting, brown. Labium slanting, brown, triangular. Sternum brown. Abdomen elongate with complex patterns dorsally and ventrally. Legs brown, measurements: I missing, II missing, III 5.09 (1.48, 0.23, 1.52, 1.17, 0.69), IV 7.46 (2.10, 0.26, 2.30, 1.80, 1.00). Palp (Figs 9 A–D): tibia swollen, cymbium with numerous long macrosetae distally; bulb yellow, oval; conductor small, lamina-like; embolus slender, sickle-shaped; conductor and embolus separated basally, arising from bulb distally. Female. Similar to male in coloration and general features, but slightly larger (Figs 10 D–E). Measurements: total length 2.23; carapace 0.65 long, 0.55 wide; abdomen 1.58 long, 1.11 wide. Leg measurements: I 6.31 (1.75, 0.28, 1.88, 1.50, 0.90), II missing, III 4.04 (1.10, 0.23, 1.22, 0.94, 0.55), IV 5.65 (1.41, 0.25, 1.80, 1.33, 0.86). Vulva with two pairs of transparent, distinctly curved, duct-like spermathecae, narrowing distally (Fig. 10A). Distribution. Known only from the type locality (Fig. 15).

Qiongocera hongjunensis Li & Li, sp. nov. (Figs 5���6, 15) Material examined. Holotype male, China, Hainan Province, Wanning City, Liulian Mountain, Hongjun Cave (18��57.925���N, 110��25.316���E; elev. 290 m), 03 July 2014, leg. F. Li & X. Wang. Paratype. 1 female, same data as holotype (IZCAS). Etymology. The species name is an adjective refering to the type locality. Diagnosis. This species is easily recognized by the complex conductor and short embolus of the male palp and the single pair of enormous spermathecae in the female. Description. Male (holotype). Total length 2.08; carapace 0.71 long, 0.80 wide; abdomen 1.19 long, 0.56 wide. Carapace round, yellow, with three longitudinal brown bands of which middle band twice as wide as laterals (Fig. 6C). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae yellow. Cheliceral promargin with lamina and no teeth, retromargin with one small tooth, posterior surface of fang with 19 small denticles. Clypeus slanting, brown, with two pale rounded areas basally. Labium slanting, brown. Sternum brown. Abdomen elongate with complex patterns dorsally and ventrally. Legs brown; measurements: I missing, II missing, III 7.02 (2.10, 0.27, 2.10, 1.86, 0.69), IV 10.07 (3.13, 0.27, 3.28, 2.97, 1.05). Palp (Figs 5 A���D): femur slender, patella angled ventrally, tibia strongly deflected prolaterally, cymbium with single protrusion; bulb yellow, pyriform, ending with a laminal, acuminate apophysis (Fig. 5B); conductor flat and short, arising distally on bulb, divided into two unequal parts; embolus dark, short, arising distally from bulb adjacent to base of conductor. Female. Similar to male in coloration and general features but slightly smaller (Figs 6 D���E). Measurements: total length 1.84; carapace 0.6 long, 0.75 wide; abdomen 1.26 long, 0.76 wide. Leg measurements: I 8.82 (2.50, 0.28, 2.62, 2.42, 1.00), II 6.29 (1.74, 0.28, 1.90, 1.74, 0.63), III 5.33 (1.55, 0.27, 1.47, 1.41, 0.63), IV 8.02 (2.25, 0.27, 2.28, 2.23, 0.99). Vulva with one pair of enormous spermathecae (Fig. 6A). Distribution. Known only from the type locality (Fig. 15)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 403, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

Luzonacera duan Li & Li, sp. nov. (Figs 3���4, 15) Material examined. Holotype male, Philippines, Luzon Island, Kalinga Province, Tabuk City, Pasil Area, Road to Lubuagan Village, rainforest on a steep slope, in humid litter (17��22.490���N, 121��10.864���E; elev. 915 m), 02 June 2015, leg. F. Ballarin & Y. Li. Paratypes. 2 females, same data as holotype (IZCAS). Etymology. The species name is a noun in apposition derived from the Chinese pinyin "du��n" ("short") and refers to the relatively short embolus. Diagnosis. Both sexes of the two species of Luzonacera gen. nov. are very similar; distinguishing them is discussed under L. chang Li & Li, sp. nov. Description. Male (holotype). Total length 3.48; carapace 0.95 long, 0.98 wide; abdomen 2.10 long, 0.69 wide. Carapace round, pink, with three longitudinal brown bands of which middle three times wider than laterals (Fig. 4C). Fovea shallow, brown. Anterior margin of thoracic region distinctly elevated. Chelicerae brown with lamina, promargin with one tooth, retromargin with two small teeth, posterior surface of fang with 22 small denticles. Clypeus slanting, brown with two pale rounded areas laterally. Labium slanting, brown. Sternum yellow, with complex patterns. Abdomen elongate, with complex patterns dorsally and ventrally. Legs brown, with white annulation; measurements: I 15.10 (4.50, 0.40, 4.20, 4.70, 1.30), II 11.48 (3.28, 0.38, 3.20, 3.52, 1.10), III 7.63 (2.25, 0.34, 2.18, 1.96, 0.90), IV 12.15 (3.68, 0.38, 3.44, 3.52, 1.13). Palp (Figs 3 A���D): tibia remarkably swollen; cymbium with distal protrusion; bulb light yellow, pyriform; conductor lacking, embolus a relatively short spiral extending subapically from bulb. Female. Similar to male in coloration and general features but slightly smaller (Figs 4 D���E). Measurements: total length 2.97; carapace 0.88 long, 0.88 wide; abdomen 1.70 long, 1.14 wide. Leg measurements: I - (3.32, 0.32, 3.40, 3.60, -), II missing, III 6.29 (1.76, 0.31, 1.78, 1.62, 0.82), IV 8.22 (2.72, 0.34, 2.72, 1.62, 0.82). Vulva with two pairs of elongate, distally swollen spermathecae (Fig. 4A). Distribution. Known only from the type locality (Fig. 15)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 400, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

3.3 Genus Relictocera Li & Li, gen. nov. Type species: Relictocera qiyi Li & Li, sp. nov. Etymology. The genus name is an arbitrary combination of letters. Gender is feminine. Diagnosis. The new genus is distinguished from all other genera of the family by the trifurcate projection on the male clypeus and the distinctly slender apical protrusion on the male cymbium. Description. Cheliceral promargin with dentoid lamina, retromargin with one denticle; male with short cymbium with single distinctly slender protrusion distally, clypeus with trifurcate projection medially (Figs 8 C–D), bulb oval with conductor present; female with external pair of translucent lobes laterally on genitalic area (Fig. 8B), vulva with single pair of slender elongate spermathecae (Fig. 8A). Distribution. Vietnam (Thua Thien Hue Province). Species composition. Relictocera qiyi Li & Li, sp. nov.

Thaiderces vulgaris (Deeleman-Reinhold, 1995) comb. nov. (Figs 13���14, 15) Psildoerces vulgaris Deeleman-Reinhold, 1995: 18, f. 29���32. Material examined. 1 male, 1 female, Thailand, Nakhon Nayok Province, Muang District Forest near Lah Rak waterfall (14��17.472���N, 101��14.888���E; elev. 82 m), 13 November 2014, leg. Q. Zhao. Diagnosis. The males of the two species of Thaiderces Li & Li, gen. nov. are very similar; distinguishing them is discussed under T. jian Li & Li, sp. nov. The female of this species is easily distinguished by the two pairs of relatively short spermathecae with the lateral pair longer than the medial pair (Fig. 14A). Description. Described by Deeleman-Reinhold (1995). Comments. This species is transfered to Thaiderces Li & Li, gen. nov. because it possesses the somatic characters that diagnose the genus. Distribution. Thailand (Nakhon Nayok Province)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 411-416, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

Luzonacera chang Li & Li, sp. nov. (Figs 1���2, 15) Material examined. Holotype male, Philippines, Rizal Province, Antipolo City, San Jose Village, Mystical Cave (large cave with a bird colony, 14��36.353���N, 121��12.521���E; elev. 212 m), 04 June 2015, leg. F. Ballarin & Y. Li. Paratypes. 1 male, 2 females, same data as holotype (IZCAS). Etymology. The species name is a noun in apposition derived from the Chinese pinyin "ch��ng" ("long") and refers to the long embolus. Diagnosis. Specimens of the two species of Luzonacera are very similar but can be distinguished as follows. The carapace in both sexes of L. chang Li & Li, sp. nov. has a medial rounded brown area (versus three longitudinal bands in both sexes of L. duan Li & Li, sp. nov.). The male of this species is easily recognized by the long spiral embolus (versus shorter in L. duan Li & Li, sp. nov.) and the relatively light constriction of the central part of the bulb (versus constriction more pronounced in L. duan Li & Li, sp. nov.). The female is diagnosed by the two pairs of curved, elongate, distally swollen spermathecae (versus curves of spermathecae relatively more twisted in L. duan Li & Li, sp. nov.). Description. Male (holotype). Total length 2.72; carapace 0.85 long, 0.92 wide; abdomen 1.70 long, 0.66 wide. Carapace round, pale yellow, with rounded brown patch medially and triangular brown patch posterior to ocular area (Fig. 2C). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae brown with lamina, promargin with one tooth, retromargin with two small teeth, posterior surface of fang with 25 small denticles. Clypeus slanting, brown with two pale rounded areas laterally. Labium slanting, yellow. Sternum yellow, with large brown spots medially. Abdomen elongate, with complex patterns dorsally and ventrally. Legs brown; measurements: I 15.75 (4.00, 0.30, 4.10, 4.75, 2.60), II 10.97 (3.03, 0.33, 3.13, 3.40, 1.08), III 7.27 (2.13, 0.35, 2.04, 1.92, 0.83), IV 11.69 (3.44, 0.32, 3.36, 3.52, 1.05). Palp (Figs 1 A���D): tibia remarkably swollen, cymbium with distal protrusion; bulb yellow, pyriform; conductor absent; embolus a slender spiral extending subapically from bulb. Female (paratype). Similar to male in coloration and general features but slightly larger (Figs 2 D���E). Measurements: total length 3.00; carapace 0.86 long, 0.88 wide; abdomen 1.90 long, 1.02 wide. Leg measurements: I - (3.72, 0.19, -, -, -), II 9.25 (2.56, 0.26, 2.80, 2.60, 1.03), III 9.92 (2.81, 0.28, 2.94, 3.06, 0.83), IV 6.24 (1.48, 0.31, 1.84, 1.80, 0.81). Vulva with two pairs of elongate, curved spermathecae with distal ends swollen (Fig. 2A). Distribution. Known only from the type locality (Fig. 15)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 397-400, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

3.5 Genus Thaiderces Li & Li, gen. nov. Type species: Thaiderces jian Li & Li, sp. nov. Etymology. The genus name is a combination of ���Thai��� (refers to Thailand) with the second part of ��� Psiloderces ���. Gender is masculine. Diagnosis. The new genus is distinguished (together with Sinoderces) from all other genera by the absence of an apical protrusion on the male cymbium. It is distinguished from Sinoderces by having two teeth on the cheliceral retromargin and the narrow, curved, needle-like tip of embolus. Description. Cheliceral promargin with dentoid lamina; retromargin with two denticles; male with simple, unmodified cymbium, conductor lacking, embolus arising apically from the bulb, tip of embolus very narrow, curved, needle-like; female with two pairs of spermathecae, one pair longer than the other. Distribution. Thailand (Yala Province). Species composition. Thaiderces jian Li & Li, sp. nov., Thaiderces vulgaris (Deeleman-Reinhold, 1995) comb. nov., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 411, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

Thaiderces jian Li & Li, sp. nov. (Figs 11���12, 15) Material examined. Holotype male, Thailand, Yala Province, Than To District, evergreen forest in front of Krasaeng Cave entrance (6��10.868���N, 101��11.605���E; elev. 155 m), 10 October 2015, leg. Q. Zhao, G. Zhou & Z. Chen. Paratype. 1 female, same data as holotype (IZCAS). Etymology. The species name is a noun in apposition derived from the Chinese pinyin "j��an" ("simple") and refers to the simple structure of the male palp. Diagnosis. The males of the two species of Thaiderces Li & Li, gen. nov. are very similar but can be distinguished as follows. The embolus of this species is relatively slender basally and the needle-like tip is smoothly curved (Figs 11 A���D) (versus relatively thick basally and with a slightly sinuous tip in T. vulgaris). The female of this species is easily distinguished by the relative length of the pairs of spermathecae: the medial spermathecae are elongate, the lateral spermathecae are greatly reduced (Fig. 12A). Description. Male (holotype). Total length 1.41; carapace 0.52 long, 0.51 wide; abdomen 0.75 long, 0.44 wide. Carapace round, brown, with two yellow longitudinal bands (Fig. 12C). Fovea shallow, brown. Anterior margin of thoracic region distinctly elevated. Chelicerae yellow with brown spots. Cheliceral promargin with dentoid lamina and no teeth, retromargin with two small teeth, posterior surface of fang with 15 small denticles. Clypeus slanting, pale brown. Labium slanting, brown. Sternum mostly brown with some small yellow areas. Abdomen elongate, light brown, with some yellow patterns dorsally and ventrally. Legs pale brown; measurements: I 5.58 (1.48, 0.20, 1.60, 1.50, 0.80), II 4.54 (1.25, 0.20, 1.25, 1.19, 0.65), III 3.60 (1.00, 0.20, 0.99, 0.94, 0.47), IV 5.31 (1.41, 0.21, 1.53, 1.41, 0.75). Palp (Figs 11 A���D): cymbium simple, unmodified; bulb pale yellow, oval; conductor lacking; embolus arising subapically from bulb, with relatively slender base and smoothly curved, needle-like tip. Female. Similar to male in coloration and general features but slightly larger (Figs 12 D���E). Measurements: total length 1.60; carapace 0.61 long, 0.54 wide; abdomen 1.05 long, 0.71 wide. Leg measurements: I missing, II - (1.03, 0.22, 1.17, 1.64, -), III 3.02 (0.80, 0.20, 0.79, 0.82, 0.41), IV missing. Vulva with elongate medial spermathecae and very short lateral spermathecae (Fig. 12A). Distribution. Known only from the type locality (Fig. 15)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 411, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

3.1 Genus Luzonacera Li & Li, gen. nov. Type species: Luzonacera chang Li & Li, sp. nov. Etymology. The genus name is a combination of ��� Luzon ��� (refers to Luzon, the Philippine Island) with the typical ending among genus names within this family. Gender is feminine. Diagnosis. The new genus is distinguished (together with Leclercera and Althepus) from all other genera of Ochyroceratidae by the large size, the presence of a denticle on the cheliceral promargin and the rounded maxillae. It is distinguished from Leclercera and Althepus by the absence of a retrolateral protrusion on the tibia or cymbium of the male palp and by the absence of a conductor. Description. Cheliceral promargin with lamina and one denticle, retromargin with two denticles; male with swollen palpal tibia, cymbium with distal protrusion, palp lacking retrolateral tibial or cymbial apophysis, bulb pyriform, central part remarkably constricted, spiral whip-like embolus extending subapically, conductor lacking; female with two pairs of elongate, distally swollen spermathecae. Distribution. Philippines (Rizal Province). Species composition. Luzonacera chang Li & Li, sp. nov., Luzonacera duan Li & Li, sp. nov., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 397, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

3.4 Genus Sinoderces Li & Li, gen. nov. Type species: Sinoderces nawanensis Li & Li, sp. nov. Etymology. The genus name is a combination of “ Sino ” (refers to Chinese) with the second part of “ Psiloderces ”. Gender is masculine. Diagnosis. The new genus is distinguished (together with Thaiderces) from all other genera by the absence of an apical protrusion on the male cymbium. It is distinguished from Thaiderces by the presence of one tooth on the cheliceral retromargin and the long embolus of the genital bulb. Description. Cheliceral promargin with lamina, retromargin with one tooth or denticle; genital bulb with long embolus, conductor present or absent, if present then embolus and conductor separated basally; female with two pairs of elongate, curved spermathecae (Fig. 10A). Distribution. China (Guangxi Zhuang Autonomous Region) Species composition. Sinoderces nawanensis Li & Li, sp. nov., Sinoderces exilis (Wang & Li, 2013) comb. nov.

3.2 Genus Qiongocera Li & Li, gen. nov. Type species: Qiongocera hongjunensis Li & Li, sp. nov. Etymology. The genus name is a combination of ��� Qiong ��� (refers to Hainan Province, China) with the typical ending among genus names within this family. Gender is feminine. Diagnosis. The new genus is distinguished (together with Flexicrurum) from all other genera by the inner turned tibia of the male palp and the complex conductor of the genital bulb. It is distinguished from Flexicrurum by the presence of one tooth on the cheliceral retromargin and the short embolus of the genital bulb. Description. Cheliceral promargin with lamina, retromargin with one denticle; male with palpal tibia strongly deflected prolaterally (Fig. 6C), cymbium with distal protrusion, bulb pyriform with complex conductor; female with single pair of enlarged spermathecae (Fig. 6A). Distribution. China (Hainan Province). Species composition. Qiongocera hongjunensis Li & Li, sp. nov., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 400-403, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

Sinoderces exilis (Wang & Li, 2013) comb. nov. Psiloderces exilis Wang & Li, 2013: 49, Figs 9 A–D, 10A–C, 11A–B, 12A–D. Material examined. 1 male, 2 females, China, Guangxi Zhuang Autonomous Region, Chongzuo City, Fuwei County, Dongmen Town, Ziyao Village, Yinhe Cave (22º32.939’N, 107º79.210’E; elev. 154m), 13 July 2011, leg. X. Wang (IZCAS). Diagnosis. The dark, hook-like conductor and shorter embolus diagnose the male of this species. Females of the two species of Sinoderces Li & Li, gen. nov. are very similar; the differences are discussed under S. nawanensis Li & Li, sp. nov. Description. See Wang & Li (2013). Comments. This species is transferred to Sinoderces Li & Li, gen. nov. because it possesses the somatic characters that diagnose the genus. Distribution. China (Guangxi Zhuang Autonomous Region)

Family Ochyroceratidae Fage, 1912 Key to the genera of the subfamily Psilodercinae (males only). 1. Cheliceral promargin with 1���2 large teeth and a lamina; maxillae mesodistally rounded....................................................................2 Cheliceral promargin with a dentoid lamina; maxillae mesodistally acuminate................................................................................... 4 2. Thoracic fovea a deep groove extending to posterior margin of carapace; cymbium with lateral protrusion bearing lanceolate apophysis and three slightly curved serrated bristles distally; bulb with embolus and conductor widely separated basally.................................................................................................................................................................................................... Althepus Thorell Fovea short or a simple depression; cymbium lacking lateral protrusion and lanceolate apophysis; bulb with conductor present or absent, if present embolus and conductor not widely separated basally...............................................................................................3 3. Palp with retrolateral protrusion on tibia or cymbium; conductor present......................................... Leclercera Deeleman-Reinhold Palp without retrolateral protrusion on tibia or cymbium; conductor absent........................................ Luzonacera Li & Li, gen. nov. 4. Cymbium without apical protrusion..................................................................................................................................................... 5 Cymbium with apical protrusion.......................................................................................................................................................... 6 5. Embolus long; conductor present or absent, if present then separated basally from embolus; cheliceral retromargin with one small tooth....................................................................................................................................................... Sinoderces Li & Li, gen. nov. Embolus short; conductor absent; cheliceral retromargin with two transparent small teeth.................. Thaiderces Li & Li, gen. nov. 6. Clypeus medially with trifurcate projection; conductor present; cheliceral retromargin with two small teeth.................................................................................................................................................................................................... Relictocera Li & Li, gen. nov. Clypeus medially with horn-shaped projection or unmodified; conductor present or absent; cheliceral retromargin with one or two small teeth............................................................................................................................................................................................7 7. Palpal tibia deflected prolaterally; bulb with complex conductor........................................................................................................8 Palpal tibia not deflected prolaterally; conductor otherwise................................................................................................................. 9 8. Embolus slender; abdomen oriented nearly perpendicular to thorax; cheliceral retromargin with two small teeth........................................................................................................................................................................................................ Flexicrurum Tong & Li Embolus short; abdomen oriented in line with thorax; cheliceral retromargin with one small tooth... Qiongocera Li & Li, gen. nov. 9. Conductor present or absent, if present then embolus and conductor not separated basally.................................... Psiloderces Simon Conductor present or absent, if present then separated basally from embolus........................................................... Merizocera Fage, Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on page 397, DOI: 10.11865/zs.201717, http://zenodo.org/record/5585652

Relictocera qiyi Li & Li, sp. nov. (Figs 7–8, 15) Material examined. Holotype male, Vietnam, Thua Thien Hue Province, Bach Ma National Park, Da Dung Village (16º13.203’N, 107º52.944’E; elev. 69m), 26 August 2015, leg. Q. Zhao, Y. Li & Z. Chen. Paratypes. 1 male, 2 females, same data as holotype (IZCAS). Etymology. The species name is a noun in apposition derived from the Chinese pinyin "qíyì" ("strange") and refers to the unique trifurcate projection on the male clypeus. Diagnosis. The male of this species is easily recognized by the distinctly slender elongate cymbial protrusion, the bifurcate conductor, and the flat embolus. The female is diagnosed by the single pair of slender elongate spermathecae. Description. Male (holotype). Total length 2.63; carapace 0.65 long, 0.76 wide; abdomen 1.36 long, 0.56 wide. Carapace round, yellow, with three longitudinal brown bands of which middle band 3–4 times wider than laterals (Fig. 8C). Fovea shallow, dark brown. Anterior margin of thoracic region distinctly elevated. Chelicerae light yellow. Cheliceral promargin with dentoid lamina and no teeth, retromargin with one small denticle, posterior surface of fang with 19 small denticles. Clypeus light yellow, slanting with trifurcate projection medially and two horn-like projections basally (Figs 8 C– D). Labium yellow, slanting. Sternum yellow, with a pair of irregular brown bands. Abdomen elongate, yellow, with brown bands dorsally and ventrally. Legs brown, femur and tibia each with white annulation; measurements: I 13.12 (3.60, 0.28 3.88, 4.30, 1.06), II 8.85 (2.50, 0.27, 2.49, 2.78, 0.81), III 6.99 (2.00, 0.27, 2.05, 2.02, 0.65), IV 6.83 (1.98, 0.28, 1.88, 2.02, 0.67). Palp (Figs 7 A–D): tibia and cymbium slender; tibia distinctly more than twice as long as cymbium; cymbium with slender apical protrusion nearly as long as cymbium; bulb yellow, oval; embolus flattened, conductor bifurcate, embolus and conductor both arising distally from bulb but separated basally. Female. Similar to male in coloration and general features, but slightly smaller and lacking trifurcate clypeal projection. Measurements: total length 2.10; carapace 0.63 long, 0.70 wide; abdomen 1.34 long, 0.76 wide. Leg measurements: I 10.56 (2.75, 0.25, 3.06, 3.44, 1.06), II 6.77 (1.82, 0.25, 1.92, 2.00, 0.78), III 5.14 (1.40, 0.23, 1.41, 1.48, 0.62), IV 8.39 (2.25, 0.25, 2.40, 2.61, 0.88). External genitalic area with pair of translucent lobes laterally (Fig. 8B). Vulva with pair of slender elongate spermathecae (Fig. 8A). Distribution. Known only from the type locality (Fig. 15)., Published as part of Liu, Chang, Li, Fengyuan, Li, Shuqiang & Zheng, Guo, 2017, Five new genera of the subfamily Psilodercinae (Araneae: Ochyroceratidae) from Southeast Asia, pp. 395-417 in Zoological Systematics 42 (4) on pages 403-408, DOI: 10.11865/zs.201717

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