taxonID	type	description	language	source
2B0187A97865AF18ED5FFE25FE690F2A.taxon	description	urn: lsid: zoobank. org: act: 55 B 68178 - 4 C 9 A- 4 AB 4 - 8 BCA- 7436486 B 7 DBB Figs 1 – 4	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	diagnosis	Diagnosis	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	etymology	Etymology The specific epithet is taken from the Indonesian word ‘ tikus ’, meaning ‘ mouse’ or ‘ rat’, referring to the small size. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 34.3 ″ S, 102 ° 34 ′ 52.6 ″ E; elev. 85 m; 5 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 3.1 _ AraSalt 018 N _ 001 (to be transferred to MZB). Paratype INDONESIA – Jambi Province • 1 ♀; Bajubang, Batang Hari, Bajubang, Pompa Air; 1 ° 49 ′ 33.3 ″ S, 103 ° 17 ′ 38.1 ″ E; elev. 51 m; 14 May 201; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ HJ 2.1 _ AraSalt 018 N _ 001 (to be transferred to MZB).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	description	Description Male (Figs 1 – 2) MEASUREMENTS. Total length 3.74. Carapace length 2.02; width 1.67. Opisthosoma length 1.72; width 1.29. Diameter of eyes: AME 0.52; ALE 0.25; PLE 0.21. Interdistances between eyes: ALE – ALE 1.07; ALE – PLE 0.70; PLE – PLE 1.22. Clypeus height 0.13. Leg measurements: leg I 4.19 (1.25, 0.80, 1.04, 0.69, 0.41); leg II 2.77 (0.91, 0.43, 0.55, 0.57, 0.31); leg III 2.91 (0.94, 0.36, 0.60, 0.63, 0.38); leg IV 2.86 (0.94, 0.37, 0.65, 0.58, 0.32). HABITUS AND COLORATION. Carapace reddish-brown, covered with cream-colored setae. Chelicerae colored darker than carapace; dentition: one promarginal, one bicuspid retromarginal. Opisthosoma oval; dorsally covered in light-brown scutum, as well as faint stripe in middle and one pair of dark zig-zag patterns on side; ventral side of opisthosoma pale, posterior half with dark patch; spinnerets surrounded by dark circle. Leg I stouter than other legs; femur to tibia uniformly colored and slightly darker than carapace; tarsus pale. Legs II – IV with alternating dark and pale color. Spinnerets basally brown, distally pale. PALP (Fig. 2). Tibia length-to-width ratio 1.25. RTA finger shaped; apex rounded; almost as long as palpal tibia and forming a 70 degrees angle towards it. Cymbium elongated. Cymbial process present. Tegular lobe wide, tip rounded. Embolus arising at 11: 30 position, approximately third of palpal bulb length, retrolaterally bent at distal third. Female (Figs 3 – 4) MEASUREMENTS. Total length 3.89. Carapace length 1.79; width 1.47. Opisthosoma length 2.10; width 1.59. Diameter of eyes: AME 0.39; ALE 0.24; PLE 0.16. Interdistances between eyes: ALE – ALE 1.09; ALE – PLE 0.56; PLE – PLE 0.85. Clypeus height 0.05. Leg measurements: leg I 2.35 (0.74, 0.35, 0.51, 0.41, 0.34); leg II 2.05 (0.66, 0.32, 0.41, 0.38, 0.28); leg III 2.34 (0.80, 0.34, 0.42, 0.48, 0.30); leg IV 2.55 (0.83, 0.27, 0.56, 0.55, 0.34). HABITUS AND COLORATION. Female habitus as in male, except following: leg I only slightly thicker than other legs and similarly striated; margins of sternum almost smooth; abdominal scutum absent, dark abdominal pattern more pronounced. EPIGYNUM (Fig. 4). Epigynal plate rectangular, slightly longer than wide. Copulatory openings oval; diameter one of fourth spermathecal length; spaced 1.5 diameter apart. Copulatory ducts as long as spermathecae, acutely bent at latter third. Spermathecae kidney shaped, slightly longer than wide, diagonally oriented. Accessory glands with wide base, abruptly narrowed in middle. Fertilisation ducts one-fourth length of spermatheca.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97865AF18ED5FFE25FE690F2A.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	description	urn: lsid: zoobank. org: act: CA 171 A 51 - 181 E- 4 A 2 F-AA 8 C-F 5 FDF 356 F 01 A Figs 5 – 6	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	diagnosis	Diagnosis Males of Dendroicius garigi Dhiya’ulhaq sp. nov. can be easily distinguished from those of the only other species Dendroicius hotaruae Lin & Li, 2020 by the finger-shaped tegular sclerite (Fig. 6 B, E vs sheet-like in D. hotaruae [Lin & Li 2020: fig. 3 b, e]), absence of dorsal embolic apophysis (vs present) and tibial apophyses merged into one large structure (Fig. 6 C, G vs multiple separate apophyses in D. hotaruae [Lin & Li 2020: fig. 3 e]).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	etymology	Etymology The specific epithet is taken from Jambi Malay, meaning ‘ denticles’, referring to the denticles on the palpal tibia. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Paoh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ BJ 5.1 _ AraSalt 008 N _ 001 (to be transferred to MZB).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	description	Description Male (Figs 5 – 6) MEASUREMENTS. Total length 2.86. Carapace length 1.53; width 1.03. Opisthosoma length 1.33; width 0.80. Diameter of eyes: AME 0.28; ALE 0.14; PLE 0.12. Interdistances between eyes: AME – AME 0.03; AME – ALE 0.03; ALE – ALE 0.61; ALE – PLE 0.32; PLE – PLE 0.75. Leg measurements: leg I 2.18 (0.63, 0.37, 0.55, 0.37, 0.26); leg II 1.50 (0.40, 0.26, 0.36, 0.28, 0.20); leg III 1.61 (0.57, 0.19, 0.33, 0.32, 0.20); leg IV 2.17 (0.70, 0.25, 0.51, 0.41, 0.30). HABITUS AND COLORATION. Carapace dark-brown, covered in black setae; lateral margins with thin stripe of white setae starting medially up to posterior end; small patch of white setae below ALE. Chelicerae colored slightly lighter than carapace; dentition: two promarginal, one retromarginal. Opisthosoma oval, yellow, laterally with thin longitudinal stripe of white setae in between stripes of black setae. Legs dorsally covered in white setae. Anterior legs brown except pale tarsus. Leg I stouter than other legs. Posterior legs pale. Spinnerets pale, except brown tip of PLS. PALP (Fig. 6). Tibia length-to-width ratio 0.60. RTA wide with three apices: ventral apex rounded, median and dorsal apices triangular. Numerous small denticles present along dorsal edge of RTA and towards distal edge of tibia. Cymbium rather broad. Tegular lobe wide and expanded; tegular bump rounded with wide base, right next to small membranous area. Sperm ducts inverted J-shaped retrolaterally; slightly curved prolaterally. Tegular sclerite pale, slightly shorter than embolus. Embolus needle-shaped, slightly more than third of length of bulb, forming 60 degree angle towards bulb. Female Unknown.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97861AF15ED72F952FAB30C08.taxon	discussion	Natural history The holotype was collected by canopy fogging in a jungle rubber plantation and is considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9786CAF12ED3FFAB2FD7D08B3.taxon	description	Figs 7 – 9	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9786CAF12ED3FFAB2FD7D08B3.taxon	diagnosis	Diagnosis and description See Sudhin et al. (2024 a).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9786CAF12ED3FFAB2FD7D08B3.taxon	materials_examined	Material examined INDONESIA – Jambi Province • 1 ♂; Batang Hari, Bajubang, Sungkai; 1 ° 51 ′ 28.4 ″ S, 103 ° 18 ′ 27.5 ″ E; elev. 53 m; 3 Jun. 2013; leg. J. Drescher; canopy fogging in oil palm plantation; GOET 2013 _ HO 3.2 _ AraSalt 103 N _ 001 (to be transferred to MZB) • 1 ♂; Batang Hari, Bajubang, Pompa Air; 1 ° 52 ′ 44.6 ″ S, 103 ° 16 ′ 28.4 ″ E; elev. 68 m; 17 May 2013; leg. J. Drescher; canopy fogging in rubber plantation; GOET 2013 _ HR 2.1 _ AraSalt 103 N _ 001 (to be transferred to MZB) • 2 ♀♀; Batang Hari, Bajubang, Sungkai; 1 ° 51 ′ 36.5 ″ S, 103 ° 18 ′ 00.6 ″ E; elev. 41 m; 2 Jun. 2013; leg. J. Drescher; canopy fogging in rubber plantation; GOET 2013 _ HR 3.2 _ AraSalt 103 N _ 001, 2013 _ HR 3.2 _ AraSalt 103 N _ 002 (to be transferred to MZB).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9786CAF12ED3FFAB2FD7D08B3.taxon	distribution	Distribution India, Thailand, Sumatra: Jambi Province (new record).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9786CAF12ED3FFAB2FD7D08B3.taxon	discussion	Natural history All specimens were collected by canopy fogging in oil palm and rubber monoculture plantations and are considered arboreal. Remarks The male specimen of Epeus tener (Simon, 1877) recorded by Patoleta et al. (2020: fig. 2 a – g) from Thailand does not appear to match with the illustration provided by Prószyński (1984: figs 13 – 15) of a specimen from Java and instead should belong to Epeus albus judging by the shape of the RTA, which has a truncated tip (vs rounded in E. tener).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	description	urn: lsid: zoobank. org: act: BF 5920 AA- 7784 - 4765 - A 2 B 5 - 67 A 6 AD 6780 BB Figs 10 – 13	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	diagnosis	Diagnosis Males of Epeus kepayang Dhiya’ulhaq sp. nov. are very similar to those of Epeus phamtri Tam & Hill, 2025 and Epeus hawigalboguttatus (Barrion & Litsinger, 1995) by their genitalia but can be differentiated from the latter two species by a thumb-shaped tegular lobe arising at 4.30 position (vs narrowed in middle in E. phamtri [Żabka 1985: fig. 109; Peng 2020: fig. 47 a]; bent, arising at 6.00 position in E. hawigalboguttatus [see illustration of holotype in Prószyński 2016]); additionally from E. hawigalboguttatus by a triangular cymbial process (vs curved, claw-shaped). Females of E. kepayang are very similar to those of E. phamtri but can be distinguished by a longer than wide atrium (Fig. 13 A – D vs wider than long in E. phamtri [Żabka 1985: figs 116 – 117, 119]); rather straight anterior (uncoiled) part of copulatory ducts (vs curved); proportionally smaller posterior (coiled) part of copulatory ducts, approximately one-third length of anterior part (vs half length of anterior part in E. phamtri); and spermathecae not dorsally covered by copulatory ducts (vs covered).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	etymology	Etymology The specific epithet is taken from the local word ‘ kepayang ’, a local name for the tree Pangium edule Reinw. The seeds of kepayang trees are poisonous, but are used as spice for local dishes. The dark-brown face of the male Epeus kepayang sp. nov. resembles the inside of kepayang seeds. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 30.8 ″ S, 102 ° 34 ′ 50.6 ″ E; elev. 91 m; 4 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 4.2 _ AraSalt 101 N _ 001 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♂; same data as for holotype; GOET 2013 _ BF 4.2 _ AraSalt 101 N _ 001 (to be deposited at MZB) • 1 ♀; Sarolangun, Pauh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ BJ 5.1 _ AraSalt 101 N _ 001 (to be transferred to MZB) • 2 ♂♂; Batang Hari, Hutan Harapan Conservation Area; 2 ° 09 ′ 09.3 ″ S, 103 ° 21 ′ 41.8 ″ E; elev. 65 m; 19 Jul. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031813, ZMH-A 0031814 • 2 ♀♀; Batang Hari, Hutan Harapan Conservation Area; 2 ° 11 ′ 15.3 ″ S, 103 ° 20 ′ 36.0 ″ E; elev. 69 m; 12 Sep. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031815, ZMH-A 0031816.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	description	Description Male (Figs 10 – 11) MEASUREMENTS. Total length 7.54. Carapace length 3.42; width 2.86. Opisthosoma length 4.12; width 1.74. Diameter of eyes: AME 0.87; ALE 0.35; PLE 0.34. Interdistances between eyes: AME – AME 0.04; AME – ALE 0.06; ALE – ALE 1.46; ALE – PLE 0.94; PLE – PLE 1.58. Clypeus height 0.22. Leg measurements: leg I 9.13 (2.63, 1.00, 2.67, 1.86, 0.97); leg II 9.45 (3.07, 0.86, 2.17, 2.38, 0.97); leg III 8.94 (2.76, 1.07, 2.35, 1.79, 0.97); leg IV 8.72 (2.60, 0.76, 2.21, 2.30, 0.85). HABITUS AND COLORATION. Carapace with high cephalic region; thoracic region yellow, gently sloping, posteriorly rounded; frontal side dark-brown; clypeus covered by white setae; eye region reddish-brown, posteriorly with erect red setae as well as white setae between ALE and PLE. Chelicerae dark-brown with purple-blue iridescence; dentition: promarginal absent, one retromarginal. Opisthosoma elongated, uniformly yellow; spinnerets black. Legs I and II predominantly dark-brown except yellow dorsal side of tibia, patella and basal half of femora; lateral side of tibia additionally with purple-blue iridescence; distal of metatarsus with dense brush of black setae, as well as along ventral side of femora. Spinnerets black, tips pale. PALP (Fig. 11). Tibia length-to-width ratio 1.30. RTA tapering, directed retrolaterally, apex slightly curved. Cymbium elongated, distally narrowed; cymbial process triangular. Tegulum oval, slightly oblique; tegular lobe thumb-shaped, arising at 4.30 position. Embolus long filiform, almost reaching apex of cymbium, arising at 7: 00 position. Female (Figs 12 – 13) MEASUREMENTS. Total length 7.34. Carapace length 2.93; width 2.37. Opisthosoma length 4.41; width 2.48. Diameter of eyes: AME 0.78; ALE 0.29; PLE 0.29. Interdistances between eyes: AME – AME 0.03; AME – ALE 0.05; ALE – ALE 1.51; ALE – PLE 0.81; PLE – PLE 1.38. Clypeus height 0.14. Leg measurements: leg I 6.75 (1.99, 0.76, 2.03, 1.26, 0.71); leg II 6.89 (2.14, 0.76, 1.90, 1.31, 0.78); leg III 7.74 (2.53, 0.76, 1.68, 1.82, 0.95); leg IV 7.37 (2.26, 0.63, 1.88, 1.85, 0.75). HABITUS AND COLORATION. Female habitus as in male, except following: base color of carapace and chelicerae uniformly yellow, erect hairs absent; cheliceral dentition: one promarginal, two retromarginal; legs all yellow, with small brown patches on tibiae-femora of leg I and II. EPIGYNUM (Fig. 13). Epigynal plate triangular. Copulatory openings facing each other, creating narrow, longer than wide atrium. Copulatory ducts long and convoluted; anterior part rather straight and oblique, ending in a u-turn posterior part consisting of three loops, ending in u-turn towards spermathecae. Spermathecae thumb-shaped, not dorsally covered by copulatory ducts, medially positioned. Fertilization ducts arising from anterior region of spermathecae, laterally oriented.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97868AF0DED61FECDFE690A1C.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97875AF09EEEFFECDFE690BCC.taxon	description	Figs 14 – 16	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97875AF09EEEFFECDFE690BCC.taxon	diagnosis	Diagnosis and description See Prószyński & Deeleman-Reinhold (2012).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97875AF09EEEFFECDFE690BCC.taxon	materials_examined	Material examined INDONESIA – Jambi Province • 1 ♀; Sarolangun, Bukit Duabelas National Park; 1 ° 59 ′ 42.6 ″ S, 102 ° 45 ′ 08.0 ″ E; elev. 69 m; 8 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 1.1 _ AraSalt 010 N _ 001 (to be transferred to MZB) • 1 ♀; Sarolangun, Bukit Duabelas National Park; 1 ° 58 ′ 55.2 ″ S, 102 ° 45 ′ 02.6 ″ E; elev. 73 m; 7 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 2.1 _ AraSalt 010 N _ 001 (to be transferred to MZB) • 1 ♂, 2 ♀♀; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 34.3 ″ S, 102 ° 34 ′ 52.6 ″ E; elev. 85 m; 5 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 3.1 _ AraSalt 010 N _ 001, 2013 _ BF 3.1 _ AraSalt 010 N _ 002, 2013 _ BF 3.2 _ AraSalt 010 N _ 001 (to be transferred to MZB) • 1 ♂, 2 ♀♀; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 30.8 ″ S, 102 ° 34 ′ 50.6 ″ E; elev. 91 m; 4 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031817 – 9 • 1 ♂; Sarolangun, Pauh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; ZMH ZMH-A 0031820 • 1 ♂; Batang Hari, Hutan Harapan Conservation Area; 2 ° 09 ′ 09.3 ″ S, 103 ° 21 ′ 41.8 ″ E; elev. 65 m; 19 Jul. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ HF 1.1 _ AraSalt 010 N _ 001 (deposited at SMF) • 1 ♂; Batang Hari, Hutan Harapan Conservation Area; 2 ° 10 ′ 42.4 ″ S, 103 ° 19 ′ 58.2 ″ E; elev. 54 m; 21 Jul. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ HF 3.1 _ AraSalt 010 N _ 001 (deposited at SMF).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97875AF09EEEFFECDFE690BCC.taxon	distribution	Distribution Sumatra: Jambi Province, West Sumatra Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97875AF09EEEFFECDFE690BCC.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	description	urn: lsid: zoobank. org: act: 4 E 42492 E- 827 B- 492 F- 950 C-B 1 F 9 A 9 EBCF 97 Figs 17 – 20	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	diagnosis	Diagnosis Indomarengo likaliku Dhiya’ulhaq sp. nov. is most similar to Indomarengo chandra Benjamin, 2004 and Indomarengo sarawakensis Benjamin, 2004, but males can be distinguished from those of I. chandra by an indistinct velum (vs pronounced in I. chandra [Benjamin 2004: fig. 42 a – b]), more coiled embolus (2.5 × vs 1.5 ×), broader palpal bulb, and tight sperm duct arrangement on retrolateral side of tegulum, touching each other (Fig. 18 B – C, D – E vs sperm duct rather loose); and from those of I. sarawakensis by a ventrally bent RTA (Fig. 18 C, E vs dorsally tilted in I. sarawakensis [Benjamin 2004: fig. 38 e]). Females can be distinguished from those of I. sarawakensis by a shorter epigynal atrium; distinct, pea-shaped spermathecae (vs rather indistinct, hardly discernible from copulatory ducts); and differences in posterior region of copulatory ducts, with more prominent horizontal coils (Fig. 20 B, D vs coils more prominently vertical [Benjamin 2004: fig. 39 b – c]).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	etymology	Etymology The specific epithet is taken from the Indonesian word ‘ lika-liku ’, roughly meaning ‘ twists and turns’, referring to the complex twists and turns of the copulatory and sperm ducts.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Pauh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ BJ 5.1 _ AraSalt 004 N _ 001 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♀; same data as for holotype; GOET 2013 _ BJ 5.1 _ AraSalt 004 N _ 002 (to be transferred to MZB) • 2 ♂♂, 1 ♀; Sarolangun, Bukit Duabelas National Park; 1 ° 59 ′ 42.6 ″ S, 102 ° 45 ′ 08.0 ″ E; elev. 69 m; 8 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031821 to ZMH-A 0031823 • 1 ♂; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 30.8 ″ S, 102 ° 34 ′ 50.6 ″ E; elev. 91 m; 4 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 4.2 _ AraSalt 004 N _ 001 (deposited at SMF).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	description	Description Male (Figs 17 – 18) MEASUREMENTS. Total length 3.22. Carapace length 1.77; width 1.16. Opisthosoma length 1.45; width 0.98. Diameter of eyes: AME 0.40; ALE 0.19; PLE 0.14. Interdistances between eyes: ALE – ALE 0.70; ALE – PLE 0.49; PLE – PLE 0.84. Clypeus height 0.09. Leg measurements: leg I 2.72 (0.80, 0.27, 0.89, 0.48, 0.28); leg II 2.04 (0.63, 0.23, 0.52, 0.40, 0.26); leg III 1.92 (0.61, 0.18, 0.42, 0.44, 0.27); leg IV 2.77 (0.94, 0.27, 0.70, 0.58, 0.28). HABITUS AND COLORATION. Carapace reddish-brown, flat, with dorsal protuberance on posterior half; surface granulated; patches of white setae on posterior end as well as between eyes. Chelicerae red; dentition: promarginal absent, three retromarginal. Opisthosoma oval, reddish-brown, posterior half darker in color, with faint transverse light band in middle; dorsally almost wholly covered in scutum. Leg I much thicker than other legs, especially tibia and tarsus; predominantly reddish-brown; tibia I with three pair of ventral spines and long tibial setae; metatarsus I with two pairs of ventral spines; rest of legs pale with lateral dark markings. Spinnerets basally light-brown, distally pale. PALP (Fig. 18). Tibia length-to-width ratio 1.40. RTA laterally tapering to narrow, rounded tip; slightly ventrally bent at anterior third. Cymbium oval. Tegulum bullet-shaped. Sperm duct S-shaped, tightly arranged on retrolateral side. Embolus long and thin, coiled approximately 2.5 times; apex slightly raised. Female (Figs 19 – 20) MEASUREMENTS. Total length 3.25. Carapace length 1.57; width 1.00. Opisthosoma length 1.68; width 1.18. Diameter of eyes: AME 0.37; ALE 0.14; PLE 0.15. Interdistances between eyes: ALE – ALE 0.68; ALE – PLE 0.42; PLE – PLE 0.67. Clypeus height 0.09. Leg measurements: leg I 2.17 (0.66, 0.28, 0.65, 0.35, 0.23); leg II 1.69 (0.53, 0.23, 0.40, 0.31, 0.22); leg III 1.58 (0.48, 0.17, 0.35, 0.35, 0.23); leg IV 2.36 (0.77, 0.25, 0.59, 0.52, 0.23). HABITUS AND COLORATION. Female habitus as in male, except following: opisthosoma without dorsal scutum; leg I less drastically thicker, with shorter tibial setae. EPIGYNUM (Fig. 20). Epigynal plate bell-shaped, longer than wide. Atrium semicircular. Copulatory openings facing anteriorly. Copulatory ducts very long and convoluted, with several bends and loops. Spermathecae small and pea-shaped. Fertilization ducts laterally oriented, twice length of spermathecae, arising from posterior region of latter.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97870AF04ED40FCF6FE690A69.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	description	urn: lsid: zoobank. org: act: 88022 A 02 - 9043 - 4 F 4 F- 8 F 01 - FB 2416 BF 0 D 5 E Figs 21 – 24	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	diagnosis	Diagnosis Pengmarengo gepeng Dhiya’ulhaq sp. nov. is most similar to Pengmarengo chelifer (Simon, 1900) and Pengmarengo yui (Wang & Li, 2020), but males can be distinguished from those of P. chelifer by the presence of an anterior-lateral process on tegulum (Fig. 22 B – E vs absent in P. chelifer [Benjamin 2004: fig. 25 a; Wanless 1978: fig. 9 b, e]); from those of P. yui by a rhombic-shaped tegulum (Fig. 22 B, D vs oval in P. yui [Wang & Li 2020: fig. 5 b – d]). Females can be distinguished from those of P. chelifer by having two small coils on the posterior part of copulatory ducts (Fig. 24 B, D vs one coil in P. chelifer [Benjamin 2004: fig. 26 b – c]) and circular copulatory openings (vs oval in P. chelifer); from those of P. yui by spermathecae having rounded bend (Fig. 24 B – C vs sharp bend in P. yui [Wang & Li 2022: fig. 11 b – c]) and oval copulatory openings (vs almost semi-circular in P. yui). Additionally, both males and females of P. gepeng lack paired white spots on the opisthosoma vs present in P. chelifer (Benjamin 2004: fig. 25 d) and P. yui (Wang & Li 2020: fig 6 a – b; 2022: fig. 11 d – f), as well as paired spots of white setae and distinct thoracic protuberance on carapace of P. yui.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	etymology	Etymology The specific epithet is taken from the Indonesian word ‘ gepeng ’, which can be translated to ‘ sprawl’ or ‘ flat’, referring to the flat body of this species. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Bukit Duabelas National Park; 1 ° 59 ′ 42.6 ″ S, 102 ° 45 ′ 08.0 ″ E; elev. 69 m; 8 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 1.1 _ AraSalt 007 N _ 001 (to be transferred to MZB). Paratype INDONESIA – Jambi Province • 1 ♀; Sarolangun, Bukit Duabelas National Park; 1 ° 56 ′ 30.8 ″ S, 102 ° 34 ′ 50.6 ″ E; elev. 91 m; 4 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; GOET 2013 _ BF 4.1 _ AraSalt 007 N _ 001 (to be transferred to MZB).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	description	Description Male (Figs 21 – 22) MEASUREMENTS. Total length 2.79. Carapace length 1.29; width 0.74. Opisthosoma length 1.50; width 0.67. Diameter of eyes: AME 0.26; ALE 0.10; PLE 0.09. Interdistances between eyes: ALE – ALE 0.50; ALE – PLE 0.33; PLE – PLE 0.53. Leg measurements: leg I 2.95 (0.83, 0.33, 0.96, 0.59, 0.24); leg II 1.32 (0.39, 0.16, 0.33, 0.28, 0.16); leg III 1.24 (0.38, 0.12, 0.28, 0.27, 0.19); leg IV 1.62 (0.50, 0.19, 0.38, 0.33, 0.22). HABITUS AND COLORATION. Carapace reddish-brown, elongated, flat surface pitted. Chelicerae red; dentition: two promarginal, three retromarginal. Opisthosoma slender oval, light brown; dorsally almost wholly covered in scutum. Leg I much thicker than other legs, especially tibia and tarsus; predominantly reddish-brown; tibia I with three pairs of ventral spines and flat tibial scales; metatarsus I with two pairs of ventral spines; rest of legs pale with dark lateral markings. Spinnerets basally light-brown, distally pale. PALP (Fig. 22). Tibia length-to-width ratio 0.95. RTA twice as long as tibia, tapering, distally slightly curved ventrally into rounded tip. Cymbium oval. Tegulum swollen, rhombic-shaped, divided by oblique cleft; short, rounded anterior-lateral process present. Embolus coiled approximately two times, coil width approximately two-thirds width of bulb; process of embolic disc membranous with blunt tip. Sperm duct thick, following retrolateral edge of tegulum. Female (Figs 23 – 24) MEASUREMENTS. Total length 2.87. Carapace length 1.27; width 0.69. Opisthosoma length 1.60; width 0.62. Diameter of eyes: AME 0.27; ALE 0.08; PLE 0.09. Interdistances between eyes: ALE – ALE 0.51; ALE – PLE 0.31; PLE – PLE 0.53. Leg measurements: leg I 2.14 (0.60, 0.22, 0.71, 0.41, 0.20); leg II 1.16 (0.31, 0.14, 0.29, 0.26, 0.16); leg III 1.09 (0.27, 0.12, 0.27, 0.24, 0.19); leg IV 1.61 (0.45, 0.15, 0.43, 0.39, 0.19). HABITUS AND COLORATION. Female habitus as in male, except following: opisthosoma with dorsal scutum covering only anterior third; leg I slightly less robust, especially femur; lateral markings on legs II – IV less distinct. EPIGYNUM (Fig. 24). Epigynal plate rectangular, much longer than wide. Copulatory opening large, located anteriorly. Copulatory ducts long, initially rather straight before turning into 2 large U-turns, followed by two small coils. Spermatheca large, kidney-shaped. Fertilization ducts broken off during dissection.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9787DAF3FED40FC11FB290D85.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	description	urn: lsid: zoobank. org: act: 76 D 95165 - AF 27 - 404 A-B 7 B 8 - 14 F 76 E 02 A 1 F 1 Figs 25 – 28	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	diagnosis	Diagnosis Body coloration of both males and females of Phintella candramawa Dhiya’ulhaq sp. nov. is identical to that of Phintella liui Wang, Mi & Peng, 2023 but is easily distinguished by the genitalia. Males have RTA with a long dorsal keel (Fig. 25 C, E vs absent in P. liui [Wang et al. 2023: fig. 20 b]); much longer embolus, approximately one fifth length of tegulum (Fig. 25 B, D vs embolus 1 / 25 length of tegulum in P. liui [Wang et al. 2023: fig. 20 a]); and trapezoid lamellar process, twice as long as wide (vs elongated, four times as long as wide). Females lack basal protrusion and atrial ridge present in P. liui (Fig. 28 A; Wang et al. 2023: fig. 21 a). In addition, female genitalia are very similar to those of Phintella accentifera (Simon, 1901), Phintella handersoni Sen, Sudhin & Caleb, 2024 and Phintella nilgirica Prószyński, 1992 but can be distinguished by vertical, slit-shaped copulatory openings (vs diagonal, oval-shaped in P. accentifera [Asima et al. 2024: figs 54, 61] and P. nilgirica [Prószyński 1992 a: figs 62 – 63]; circular in P. handersoni [Sudhin et al. 2024 b: fig. 4 g]).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	etymology	Etymology The specific epithet is taken from the Indonesian word ‘ candramawa ’ which refers to the black-andwhite pattern of certain cats, alluding to the male coloration of Phintella candramawa sp. nov. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Batang Hari, Muara Bulian, Singkawang; 1 ° 47 ′ 13.8 ″ S, 103 ° 16 ′ 14.7 ″ E; elev. 46 m; 7 Jun. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; GOET 2013 _ HO 4.2 _ AraSalt 104 N _ 001 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♀; same data as for holotype; GOET 2013 _ HO 4.2 _ AraSalt 104 N _ 002 (to be transferred to MZB) • 1 ♂; same data as for holotype; ZMH ZMH-A 0031826 • 2 ♀♀; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 32.1 ″ S, 102 ° 47 ′ 30.7 ″ E; elev. 71 m; 24 Jun. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; ZMH ZMH-A 0031824, ZMH-A 0031825.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	description	Description Male (Figs 25 – 26) MEASUREMENTS. Total length 3.86. Carapace length 1.75; width 1.30. Opisthosoma length 2.11; width 1.01. Diameter of eyes: AME 0.40; ALE 0.21; PLE 0.21. Interdistances between eyes: ALE – ALE 0.90; ALE – PLE 0.54; PLE – PLE 0.87. Clypeus height 0.09. Leg measurements: leg I 4.34 (1.28, 0.47, 1.21, 0.92, 0.46); leg II 3.45 (1.07, 0.37, 0.89, 0.66, 0.46); leg III missing; leg IV missing. HABITUS AND COLORATION. Carapace anteriorly dark-brown, as well as along edges; middle of carapace with wedge-shaped pale marking, followed by dark-brown stripe that goes around it posteriorly, followed in turn by pale stripe; fringe of white setae on clypeal margin, as well as between eyes. Chelicerae basally black, distally pale; dentition: three promarginal, one retromarginal. Opisthosoma elongated, pale, with dark stripe on each side; spinnerets black. Leg I dark-brown on femur and patella; tibia to tarsus predominantly pale with dark blotches; leg II pale. Spinnerets black, tip pale. PALP (Fig. 26). Tibia length-to-width ratio 1.40. RTA claw-shaped, gently curved, ventrally leaning, positioned at ventral edge of palpal tibia, followed by long, thin keel. Cymbium elongated, basal half dark-brown, distally pale. Tegulum with large trapezoid posterior lobe and smaller, rounded retrolateral lobe; lamellar process trapezoid, about two times as long as wide; tegular bump subtriangular. Sperm duct inverted J-shaped retrolaterally; slightly curved prolaterally. Embolus needle-shaped, forming 45 degree angle towards tegulum. Female (Figs 27 – 28) MEASUREMENTS. Total length 3.91. Carapace length 1.55; width 1.16. Opisthosoma length 2.36; width 1.29. Diameter of eyes: AME 0.42; ALE 0.21; PLE 0.20. Interdistances between eyes: ALE – ALE 0.82; ALE – PLE 0.53; PLE – PLE 0.84. Clypeus height 0.09. Leg measurements: leg I 3.03 (0.96, 0.37, 0.78, 0.58, 0.34); leg II 2.78 (0.87, 0.33, 0.70, 0.53, 0.35); leg III 3.21 (0.98, 0.41, 0.77, 0.71, 0.34); leg IV 3.64 (1.14, 0.30, 0.92, 0.89, 0.39). HABITUS AND COLORATION. Carapace pale; fringe of white setae on clypeal margin, as well as between eyes. Chelicerae pale; dentition: two promarginal, one retromarginal. Opisthosoma elongated, pale, without any markings; spinneret pale. Legs pale. EPIGYNUM (Fig. 28). Epigynal plate roughly triangular, wider than long. Copulatory openings vertical slit-shaped, positioned anteriorly. Copulatory ducts thick, as long as spermatheca, slightly curved. Spermathecae large, kidney-shaped. Fertilization ducts as long as spermatheca, arising from anterior end of spermatheca, oriented diagonally.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97846AF3AED4BFB2EFA9E0D96.taxon	discussion	Natural history All specimens were collected by canopy fogging in oil palm plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	description	urn: lsid: zoobank. org: act: 91 DB 34 AF-CDB 7 - 4 F 73 - 9563 - 42 F 2 E 383 D 41 F Figs 29 – 32	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	diagnosis	Diagnosis Males of Phintella castor Dhiya’ulhaq sp. nov. resembles those of Phintella australis (Simon, 1902) and Phintella rajbharathi Caleb, Sudhin & Sen, 2024 by a wide, lobed base of RTA but can be distinguished from the latter two species by an extremely short, needle-shaped embolus (Fig. 30 B, D vs claw-shaped in P. australis [Wesołowska 2012: fig. 25] and P. rajbharathi [Sudhin et al. 2024 b: figs 6 c – d, 8 f – g]); additionally from those of P. australis by distinct, triangular, retrolateral lobe (vs retrolateral lobe indistinct anterior to sperm duct) and from those of P. rajbharathi by an oblique, tapering ventral lobe of RTA, much longer than dorsal lobe (vs ventral lobe barely longer than dorsal lobe). Females can be distinguished from those of all congeners by having copulatory openings positioned medially in between spermathecae (Fig. 32 A – D), whereas in all other species with known females they are located either anterior or posterior to spermathecae.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	etymology	Etymology The specific epithet is taken from the celestial object which is the second-brightest component of the Gemini constellation. Castor is made up of six individual stars, which alludes to the six white spots on the opisthosoma of male Phintella castor sp. nov. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 15.2 ″ S, 102 ° 47 ′ 30.8 ″ E; elev. 54 m; 25 Jun. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; GOET 2013 _ BO 3.1 _ AraSalt 053 N _ 001 (deposited at SMF). Paratypes INDONESIA – Jambi Province • 1 ♂, 6 ♀♀; same data as for holotype; GOET 2013 _ BO 3.1 _ AraSalt 053 N _ 002 to GOET 2013 _ BO 3.1 _ AraSalt 053 N _ 006, 2013 _ BO 3.2 _ AraSalt 053 N _ 001 (to be transferred to MZB) • 1 ♀; Sarolangun, Air Hitam, Desa Baru; 2 ° 03 ′ 01.4 ″ S, 102 ° 45 ′ 12.1 ″ E; elev. 48 m; 11 Jul. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; GOET 2013 _ BO 4.1 _ AraSalt 053 N _ 001 (to be transferred to ZHM) • 1 ♀; Sarolangun, Pauh; 2 ° 06 ′ 49.6 ″ S, 102 ° 47 ′ 43.5 ″ E; elev. 57 m; 19 Jun. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; ZMH ZMH-A 0031827 • 1 ♀; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 36.0 ″ S, 102 ° 46 ′ 22.4 ″ E; elev. 54 m; 27 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; ZMH ZMH-A 0031828 • 1 ♂; Batang Hari, Bajubang, Sungkai; 1 ° 51 ′ 28.4 ″ S, 103 ° 18 ′ 27.5 ″ E; elev. 53 m; 3 Jun. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; ZMH ZMH-A 0031829.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	description	Description Male (Figs 29 – 30) MEASUREMENTS. Total length 4.27. Carapace length 1.96; width 2.13. Opisthosoma length 2.31; width 1.24. Diameter of eyes: AME 0.52; ALE 0.29; PLE 0.27. Interdistances between eyes: ALE – ALE 1.18; ALE – PLE 0.75; PLE – PLE 1.18. Clypeus height 0.06. Leg measurements: leg I 6.74 (1.92, 0.75, 1.90, 1.49, 0.68); leg II 4.69 (1.26, 0.54, 1.19, 1.17, 0.53); leg III 5.52 (1.62, 0.66, 1.18, 1.48, 0.58); leg IV 6.01 (1.80, 0.45, 1.46, 1.67, 0.63). HABITUS AND COLORATION. Carapace posteriorly rounded; dark-brown anteriorly, as well as around margins; posteriorly with large butterfly-shaped black marking surrounded by pale lines; ALE and PME surrounded by black patches; anterior half of carapace covered dorsally in iridescent scales; margin of clypeus with fringe of white setae. Chelicerae dark brown; dentition: two promarginal, one retomarginal. Opisthosoma yellow, covered in six white spots arranged in two rows (2 – 4), each spot followed by black spot; posterior end of opisthosoma with additional black spot. Leg I slightly more robust than other legs, predominantly dark brown; rest of legs mostly pale. Spinnerets light brown, tip pale. PALP (Fig. 30). Tibia length-to-width ratio 1.35. RTA bilobed with very wide base; dorsal lobe humpshaped curved into rounded corner; ventral lobe oblique, ventrally leaning, tapering into small, claw-shaped apex. Cymbium longer than wide. Tegulum with large triangular posterior lobe and smaller, triangular retrolateral lobe; lamellar process light curve, about three times as long as wide; tegular bump small and rounded. Sperm duct inverted J-shaped retrolaterally; long and slightly curved prolaterally. Embolus very short, barely distinct, needle-shaped with rounded tip. Female (Figs 31 – 32) MEASUREMENTS. Total length 3.09. Carapace length 1.69; width 1.41. Opisthosoma length 1.40; width 1.23. Diameter of eyes: AME 0.40; ALE 0.20; PLE 0.23. Interdistances between eyes: ALE – ALE 0.97; ALE – PLE 0.62; PLE – PLE 0.95. Clypeus height 0.08. Leg measurements: leg I 2.91 (0.95, 0.37, 0.72, 0.55, 0.32); leg II 2.94 (0.94, 0.36, 0.68, 0.58, 0.38); leg III 3.61 (1.22, 0.31, 0.78, 0.88, 0.42); leg IV 4.04 (1.39, 0.41, 0.94, 0.86, 0.44). HABITUS AND COLORATION. Carapace posteriorly rounded, slightly longer than wide; pale-colored with black spots around ALE and PME as well as large butterfly-shaped black marking posteriorly. Chelicerae white; dentition: two promarginal, one retomarginal. Opisthosoma yellow, with 4 white rectangular patches, each followed by black patch; posterior end of opisthosoma with additional black spot. Legs pale. Spinnerets pale. EPIGYNUM (Fig. 32). Epigynal plate oval, much wider than long. Copulatory openings small, medially positioned in between spermathecae. Copulatory ducts as long as spermatheca, bending at right angle. Spermatheca large, egg-shaped, diagonally oriented. Fertilization ducts as long as spermatheca, arising from anterior end of spermatheca, bending at right angle towards laterally.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97843AF35ED64FB7CFE6F08E3.taxon	discussion	Natural history All specimens were collected by canopy fogging in oil palm and rubber monoculture plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	description	urn: lsid: zoobank. org: act: 9 D 64923 D-C 179 - 4 AE 3 - 811 C-C 568 F 8 F 829 E 5 Figs 33 – 34	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	diagnosis	Diagnosis Males of Phintella siginjai Dhiya’ulhaq sp. nov. are most similar to those of Phintella fodingensis Wang, Mi & Peng, 2023 by the claw-shaped RTA but can be easily distinguished (as well as from those of all other congeners) by the presence of VTA and needle-shaped embolus with median bump (Fig. 34 A – E).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	etymology	Etymology The specific epithet refers to Keris Siginjai, a legendary keris (traditional dagger) which is the symbol of Jambi City. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 36.0 ″ S, 102 ° 46 ′ 22.4 ″ E; elev. 54 m; 27 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; GOET 2013 _ BR 4.1 _ AraSalt 115 N _ 001 (to be transferred to MZB). Paratype INDONESIA – Jambi Province • 1 ♂; Sarolangun, Air Hitam, Desa Baru; 2 ° 01 ′ 49.5 ″ S, 102 ° 46 ′ 14.8 ″ E; elev. 57 m; 12 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; ZMH ZMH-A 0031830.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	description	Description Male (Figs 33 – 34) MEASUREMENTS. Total length 3.67. Carapace length 1.70; width 1.60. Opisthosoma length 1.97; width 1.13. Diameter of eyes: AME 0.51; ALE 0.23; PLE 0.22. Interdistances between eyes: ALE – ALE 1.00; ALE – PLE 0.62; PLE – PLE 1.11. Clypeus height 0.10. Leg measurements: leg I 5.05 (1.46, 0.57, 1.36, 1.08, 0.58); leg II 3.71 (1.15, 0.39, 0.90, 0.85, 0.42); leg III 4.51 (1.34, 0.36, 1.05, 1.18, 0.58); leg IV 4.66 (1.30, 0.36, 1.17, 1.26, 0.57). HABITUS AND COLORATION. Carapace light-brown with dark margins; middle of carapace with wedge-shaped white marking, surrounded by brown setae; white setae covering clypeus, sides of carapace, as well as between eyes. Chelicerae light-brown; dentition: two promarginal, one retromarginal. Opisthosoma elongated, pale; each side of opisthosoma with stripe of black setae, and dorsally with four black spots; spinnerets light brown. Leg I predominantly dark-brown from femur to tibia; tibia dorsally with patch of white setae; leg IV femur laterally with two black patches on each side; rest of legs pale. Spinnerets pale. PALP (Fig. 34). Tibia length-to-width ratio 0.80. RTA claw shaped, tip curved, slightly leaning dorsally, positioned in middle of palpal tibia. VTA acutely triangular. Cymbium elongated, pale. Tegulum with rounded, subtriangular posterior lobe and rounded retrolateral lobe; lamellar process subtriangular, about two times as long as wide; tegular bump subtriangular. Sperm duct inverted J-shaped retrolaterally; long and slightly curved prolaterally. Embolus needle-shaped, with bump in middle.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9784DAF33ED6CFECCFDCE0873.taxon	discussion	Natural history All specimens were collected by canopy fogging in jungle rubber and rubber monoculture plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	description	urn: lsid: zoobank. org: act: 429 FBB 94 - 628 D- 47 F 3 - 9 F 4 F-E 11 FD 4896 E 09 Figs 35 – 38	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	diagnosis	Diagnosis Males of Poecilorchestes keciknyo Dhiya’ulhaq sp. nov. can be distinguished from all those of other congeners by a bullet-shaped tegulum (Fig. 36 B, E). Females can be distinguished from those of Poecilorchestes decoratus Simon, 1901 by posterior chambers of spermathecae positioned posterior to anterior chambers (Fig. 38 A, C vs posterior chambers parallel to anterior chambers [Chrysanthus 1968: fig. 77]) and from those of Poecilorchestes zhengi Wang & Li, 2021 by having an epigynal hood anterior to spermathecae (Fig. 38 A – C vs in between anterior and posterior chamber of spermathecae in P. zhengi [Wang & Li 2021: fig. 15 a]) and anterior chambers of spermathecae slightly smaller than posterior chambers (vs anterior chamber much larger than posterior chamber in P. zhengi).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	etymology	Etymology The specific epithet is taken from the Jambi Malay word ‘ keciknyo ’ meaning ‘ so small’, referring to the minute size of this species. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Pauh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ BJ 5.1 _ AraSalt 005 N _ 001 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♂, 2 ♀♀; same data as for holotype; GOET 2013 _ BJ 5.1 _ AraSalt 005 N _ 002 to GOET 2013 _ BJ 5.1 _ AraSalt 005 N _ 004 (to be transferred to MZB) • 1 ♂, 1 ♀; Sarolangun, Bukit Duabelas National Park; 1 ° 59 ′ 42.6 ″ S, 102 ° 45 ′ 08.0 ″ E; elev. 69 m; 8 Oct. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031831, ZMH-A 0031832 • 1 ♂; Sarolangun, Air Hitam, Desa Baru; 2 ° 00 ′ 56.8 ″ S, 102 ° 45 ′ 12.6 ″ E; elev. 64 m; 14 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; ZMH ZMH-A 0031833.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	description	Description Male (Figs 35 – 36) MEASUREMENTS. Total length 1.48. Carapace length 0.72; width 0.68. Opisthosoma length 0.76; width 0.74. Diameter of eyes: AME 0.19; ALE 0.10; PLE 0.07. Interdistances between eyes: ALE – ALE 0.43; ALE – PLE 0.17; PLE – PLE 0.58. Clypeus height 0.02. Leg measurements: leg I 1.11 (0.37, 0.21, 0.24, 0.15, 0.14); leg II 0.79 (0.28, 0.15, 0.13, 0.10, 0.13); leg III 0.69 (0.25, 0.09, 0.11, 0.09, 0.15); leg IV 0.84 (0.32, 0.09, 0.14, 0.11, 0.18). HABITUS AND COLORATION. Carapace box-shaped, reddish-brown. Chelicerae red; dentition: two promarginal, one bicuspid retromarginal. Opisthosoma round, slightly flattened dorso-ventrally; covered in light-brown scutum over whole dorsal surface; rest of opisthosoma and spinnerets pale. Legs rather short and thick; leg I stouter than other legs; most of legs dark-brown except tarsi, metatarsi II – IV and tibiae III – IV. Flattened, iridescent scales covering dorsal and frontal surface of carapace, dorsal and posterior-lateral surface of opisthosoma, as well as anterior legs and pedipalp. Spinnerets light brown, tip pale. PALP (Fig. 36). Tibia length-to-width ratio 1.30, dorsally covered in iridescent scales. Cymbium subtriangular. Tegulum bullet-shaped with slightly oblique, truncated base. Sperm duct following margins of tegulum, starting out broad, becoming narrow starting from posterior margin of bulb. Embolus curved, starting out from broad base, approximately half as long as tegulum. RTA absent. Female (Figs 37 – 38) MEASUREMENTS. Total length 1.54. Carapace length 0.72; width 0.65. Opisthosoma length 0.82; width 0.73. Diameter of eyes: AME 0.20; ALE 0.10; PLE 0.07. Interdistances between eyes: ALE – ALE 0.42; ALE – PLE 0.20; PLE – PLE 0.58. Clypeus height 0.01. Leg measurements: leg I 0.99 (0.32, 0.19, 0.21, 0.11, 0.16); leg II 0.81 (0.27, 0.15, 0.15, 0.10, 0.14); leg III 0.71 (0.25, 0.09, 0.12, 0.10, 0.15); leg IV 0.88 (0.34, 0.09, 0.15, 0.12, 0.18). HABITUS AND COLORATION. Female habitus as in male, except part of opisthosoma not covered in scutum dark-gray. EPIGYNUM (Fig. 38). Epigynal plate oval, wider than long. Copulatory openings small, separated from each other by approximately width of posterior spermathecal chambers. Copulatory ducts, as long as anterior spermathecal chambers. Epigynal hood located anteriorly. Spermatheca two-chambered; anterior chambers oval; posterior chambers oval, slightly larger than anterior chambers and positioned posterior to them; distance between anterior chambers larger than distance between posterior chambers. Fertilization ducts arising from anterior end of posterior spermatheca, diagonally oriented.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97848AF2DED5DFE8EFE6908E3.taxon	discussion	Natural history All specimens were collected by canopy fogging in rainforests and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	description	urn: lsid: zoobank. org: act: 9425 E 541 - 9 CED- 4126 - 9807 - E 89 C 404977 D 3 Figs 39 – 42	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	diagnosis	Diagnosis Males of Psenuc lalawa Dhiya’ulhaq sp. nov. resemble those of Psenuc manillaensis (Prószyński, 1992), Psenuc nuclearis (Prószyński, 1992), and Psenuc vesporum (Prószyński, 1992) in having an RTA with wide, trapezoid base extending into tapering ventral lobe but can be differentiated from those of the latter three species by a sharp dorsal corner of RTA (Fig. 40 E vs rounded / curved in P. manillaensis [Prószyński 1992 a: fig. 84]; P. nuclearis [Prószyński 1992 a: fig. 86]; and P. vesporum [Prószyński 1992 a: fig. 89]) and position of tegular bump, approximately at mid-length of tegulum (vs anterior third of tegulum in latter three species). Females resemble those of Psenuc solomonensis (Prószyński, 1992) in having large, thumb-shaped spermathecae but can be distinguished by almost vertical final part of copulatory ducts (Fig. 42 B – C vs almost horizontal in P. solomonensis [Prószyński 1992 a: fig. 102]) and longer accessory glands, three-quarters length of spermathecae (vs half length of spermathecae in P. solomonensis).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	etymology	Etymology The specific epithet is taken from the word ‘ lalawa ’ which is used to refer to spiders in the town of Lubuk Kepayang (Jambi Province, Sumatra, Indonesia). Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 05 ′ 43.0 ″ S, 102 ° 46 ′ 59.7 ″ E; elev. 73 m; 22 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; GOET 2013 _ BR 3.1 _ AraSalt 045 N _ 001 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♂; same data as for holotype; ZMH ZMH-A 0031834 • 1 ♀; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 36.0 ″ S, 102 ° 46 ′ 22.4 ″ E; elev. 54 m; 27 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; GOET 2013 _ BR 4.1 _ AraSalt 045 N _ 001 (to be transferred to MZB) • 1 ♀; Sarolangun, Pauh, Semaran; 2 ° 08 ′ 35.9 ″ S, 102 ° 51 ′ 04.5 ″ E; elev. 45 m; 16 Jul. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; ZMH ZMH-A 0031835.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	description	Description Male (Figs 39 – 40) MEASUREMENTS. Total length 3.23. Carapace length 1.47; width 1.10. Opisthosoma length 1.76; width 1.00. Diameter of eyes: AME 0.29; ALE 0.16; PLE 0.13. Interdistances between eyes: ALE – ALE 0.62; ALE – PLE 0.41; PLE – PLE 0.71. Clypeus height 0.02. Leg measurements: leg I 2.73 (0.82, 0.45, 0.78, 0.42, 0.26); leg II 2.04 (0.68, 0.24, 0.44, 0.41, 0.27); leg III 1.21 (0.61, 0.22, 0.37, 0.36, 0.26); leg IV 2.47 (0.82, 0.32, 0.65, 0.39, 0.29). HABITUS AND COLORATION. Carapace elongated, dark-brown; frontal and lateral margins covered in thin stripe of white setae; row of stridulatory setae present under posterior eyes. Chelicerae dark-brown; dentition: one promarginal, two retromarginal. Opisthosoma oval; dorsally with a gray cardiac mark and alternating pale and gray curved stripes, as well as a pale, divided, heart-shaped mark in middle; dark-gray ventrally as well as spinnerets. Leg I much stouter than other legs, tibia especially broadened, colored same as carapace; rest of legs light-brown. Spinnerets brown. PALP (Fig. 40). Dorsal surface of palp covered in flat, white setae. Tibia length-to-width ratio 0.95, dorsally covered in flat, white scales. RTA with wide, rectangular base; dorsal and anterior ramus straight, joining at almost right angle and creating sharp corner; ventral lobe as long as RTA base, tapering to pointed apex. Tegulum oval, slightly oblique. Tegular lobe rounded, approximately half width of bulb; tegular bump with curved apex and small membranous part beneath apex. Embolus arising at 8: 00 position, long and curved, following prolateral margin of cymbium. Female (Figs 41 – 42) MEASUREMENTS. Total length 3.75. Carapace length 1.53; width 1.01. Opisthosoma length 2.22; width 1.42. Diameter of eyes: AME 0.29; ALE 0.16; PLE 0.12. Interdistances between eyes: ALE – ALE 0.60; ALE – PLE 0.50; PLE – PLE 0.74. Clypeus height 0.02. Leg measurements: leg I 1.80 (0.58, 0.27, 0.48, 0.26, 0.21); leg II 1.55 (0.50, 0.28, 0.34, 0.25, 0.18); leg III 1.49 (0.53, 0.20, 0.38, 0.21, 0.17); leg IV 2.44 (0.79, 0.33, 0.62, 0.47, 0.23). HABITUS AND COLORATION. Female habitus as in male, except following: white setae of carapace only on lateral margins; leg I only slightly stouter than other legs, colored lighter than carapace. EPIGYNUM (Fig. 42). Epigynal plate oval, wider than long. Epigynal pockets thumb-shaped, located at posterior corner of epigynal plate. Copulatory openings narrow, located just anterior to inlet of spermatheca. Copulatory ducts looping twice, followed by very sharp turn, finishing into almost vertical straight tube. Spermathecae large, thumb-shaped. Fertilization ducts arising from anterior region of spermathecae, bent at right angle at basal third.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A97855AF27ED1CFE8FFDCE0A8D.taxon	discussion	Natural history All specimens were collected by canopy fogging in jungle rubber and rubber monoculture plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785EAF26ED0AFC31FD5608E2.taxon	description	Figs 43 – 46	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785EAF26ED0AFC31FD5608E2.taxon	diagnosis	Diagnosis and description See Wang & Li (2021).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785EAF26ED0AFC31FD5608E2.taxon	materials_examined	Material examined INDONESIA – Jambi Province • 1 ♂; Sarolangun, Air Hitam, Desa Baru; 2 ° 03 ′ 01.4 ″ S, 102 ° 45 ′ 12.1 ″ E; elev. 48 m; 11 Jul. 2013; J. Drescher leg.; canopy fogging in oil palm plantation; GOET 2013 _ BO 4.1 _ AraSalt 011 N _ 001 (deposited at MZB) • 1 ♂; Sarolangun, Pauh, Semaran; 2 ° 05 ′ 30.5 ″ S, 102 ° 48 ′ 08.4 ″ E; elev. 75 m; 20 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; GOET 2013 _ BR 1.1 _ AraSalt 011 N _ 001 (deposited at MZB) • 1 ♂; Sarolangun, Air Hitam, Lubuk Kepayang; 2 ° 04 ′ 36.0 ″ S, 102 ° 46 ′ 22.4 ″ E; elev. 54 m; 27 Jun. 2013; J. Drescher leg.; canopy fogging in rubber plantation; ZMH ZMH-A 0031836 • 2 ♂♂; Batang Hari, Hutan Harapan Conservation Area; 2 ° 11 ′ 15.3 ″ S, 103 ° 20 ′ 36.0 ″ E; elev. 69 m; 12 Sep. 2013; J. Drescher leg.; canopy fogging in rainforest; ZMH ZMH-A 0031837, ZMH-A 0031838 • 1 ♂; Batang Hari, Bajubang, Sungkai; 1 ° 50 ′ 58.7 ″ S, 103 ° 18 ′ 00.5 ″ E; elev. 56 m; 5 Jun. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ HJ 3.1 _ AraSalt 011 N _ 001 (deposited at SMF) • 2 ♂♂; Batang Hari, Muara Bulian, Singkawang; 1 ° 47 ′ 07.9 ″ S, 103 ° 16 ′ 37.4 ″ E; elev. 56 m; 18 Jun. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ HJ 4.1 _ AraSalt 011 N _ 001, 2013 _ HJ 4.1 _ AraSalt 011 N _ 002 (to be transferred to MZB) • 1 ♂; same data as for preceding; GOET 2013 _ HJ 4.2 _ AraSalt 011 N _ 001 (deposited at SMF) • 1 ♀; Batang Hari, Bajubang, Pompa Air; 1 ° 52 ′ 44.6 ″ S, 103 ° 16 ′ 28.4 ″ E; elev. 68 m; 17 May 2013; J. Drescher leg.; canopy fogging in rubber plantation; GOET 2013 _ HR 2.1 _ AraSalt 011 N _ 001 (to be transferred to MZB).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785EAF26ED0AFC31FD5608E2.taxon	distribution	Distribution China, Sumatra: Jambi Province (new record).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785EAF26ED0AFC31FD5608E2.taxon	discussion	Natural history All specimens were collected by canopy fogging in oil palm, rubber monocultures, and jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	description	urn: lsid: zoobank. org: act: 3 A 06 AE 45 - DD 90 - 4 CBB- 8 FC 3 - 7 E 535848 C 491 Figs 47 – 50	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	diagnosis	Diagnosis Males of Stertinius senja Dhiya’ulhaq sp. nov. resemble those of Stertinius nobilis (Thorell, 1890) by short, relatively straight embolus and rounded cymbial process, but can be easily distinguished by having subtriangular, anterior tegular lobe (Fig. 48 B, D vs absent in S. nobilis [Prószyński 1984: fig. 78]). Females resemble those of Stertinius borneensis Logunov, 2018 by genitalia but can be distinguished by posterior chambers of spermathecae bent at almost right angle in posterior view (Fig. 50 D vs lightly curved in S. borneensis [Logunov 2018: fig. 3]); absence of central pocket (present in S. borneensis [Logunov 2018: fig. 2]); and dark abdominal markings consisting of thick median stripe and five dark lateral stripes (Fig. 49 A, C vs reticulate in anterior half and covering most of posterior half [Logunov 2018: fig. 5]).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	etymology	Etymology The specific epithet is taken from the Indonesian word ‘ senja ’ meaning ‘ twilight’ or ‘ sunset’, as the yellow setae and iridescent scales of this species are reminiscent of the twilight during sunset. Noun in apposition.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	materials_examined	Material examined Holotype INDONESIA – Jambi Province • ♂; Batang Hari, Bajubang, Pompa Air; 1 ° 49 ′ 33.3 ″ S, 103 ° 17 ′ 38.1 ″ E; elev. 51 m; 14 May 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ HJ 2.1 _ AraSalt 069 N _ 011 (to be transferred to MZB). Paratypes INDONESIA – Jambi Province • 1 ♀; same data as for holotype; GOET 2013 _ HJ 2.1 _ AraSalt 069 N _ 012 (to be transferred to MZB) • 3 ♂♂, 7 ♀♀; same data as for holotype; ZMH ZMH-A 0031839 to ZMH-A 0031848 • 2 ♂♂, 3 ♀♀; same data as for holotype; GOET 2013 _ HJ 2.2 _ AraSalt 069 N _ 001 to 2013 _ HJ 2.2 _ AraSalt 069 N _ 005 (deposited at SMF) • 1 ♂, 2 ♀♀; Batang Hari, Bajubang, Sungkai; 1 ° 50 ′ 8.7 ″ S, 103 ° 18 ′ 00.5 ″ E; elev. 56 m; 5 Jun. 2013; J. Drescher leg.; canopy fogging in jungle rubber plantation; GOET 2013 _ HJ 3.1 _ AraSalt 069 N _ 001, 2013 _ HJ 3.1 _ AraSalt 069 N _ 002, 2013 _ HJ 3.2 _ AraSalt 069 N _ 001 (deposited at SMF).	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	description	Description Male (Figs 47 – 48) MEASUREMENTS. Total length 2.94. Carapace length 1.41; width 1.28. Opisthosoma length 1.53; width 1.13. Diameter of eyes: AME 0.36; ALE 0.16; PLE 0.14. Interdistances between eyes: ALE – ALE 0.81; ALE – PLE 0.62; PLE – PLE 1.08. Clypeus height 0.02. Leg measurements: leg I 2.11 (0.73, 0.35, 0.53, 0.27, 0.23); leg II 1.47 (0.50, 0.18, 0.31, 0.26, 0.22); leg III 1.38 (0.51, 0.20, 0.24, 0.24, 0.19); leg IV 1.80 (0.65, 0.26, 0.36, 0.28, 0.25). HABITUS AND COLORATION. Carapace box-shaped, posteriorly wider, reddish-brown; covered in yellow setae dorsally and white setae on lateral margins and clypeus. Chelicerae reddish-brown, dentition: two promarginal, one retromarginal. Opisthosoma oval; dorsally covered in yellow scutum as well as long, lobed dark marking along middle; five pairs of faint dark stripes on lateral side; dark median area on ventral side; anterior spinnerets dark-gray; posterior lateral spinnerets pale with long median segment. Leg I much stouter than other legs, with very broad femora, colored as carapace, covered in flat, iridescent scales; rest of legs light-brown. Spinnerets: PLS elongated, pale; ALS half of PLS length, light-brown. PALP (Fig. 48). Dorsal surface of palp covered in iridescent flat setae. Tibia length-to-width ratio 1.30. RTA as long as tibia, tapering to rounded apex, obliquely tilted dorsally. Cymbium rather broad, posterior margin oblique; cymbial process large, semicircular, partly hidden by RTA. Tegulum oval, possessing subtriangular anterior lobe. Sperm duct following margins of bulb, starting out broad on retrolateral margin, becoming thin on prolateral margin. Embolus arising at 11: 00 position, thorn-shaped. Female (Figs 49 – 50) MEASUREMENTS. Total length 2.81. Carapace length 1.24; width 1.06. Opisthosoma length 1.57; width 1.04. Diameter of eyes: AME 0.19; ALE 0.13; PLE 0.12. Interdistances between eyes: ALE – ALE 0.65; ALE – PLE 0.49; PLE – PLE 0.89. Clypeus height 0.02. Leg measurements: leg I 1.46 (0.55, 0.24, 0.34, 0.14, 0.19); leg II 1.20 (0.38, 0.15, 0.27, 0.19, 0.21); leg III 1.02 (0.39, 0.10, 0.22, 0.14, 0.17); leg IV 1.56 (0.55, 0.18, 0.33, 0.25, 0.25). HABITUS AND COLORATION. Female habitus as in male, except following: opisthosoma dorsally covered in six small scuta over sigillae; lateral dark markings on opisthosoma longer and more prominent; leg I not as stout as in male, colored lighter than carapace. EPIGYNUM (Fig. 50). Epigynal plate oval, wider than long. Copulatory openings small, widely separated from each other. Copulatory ducts short. Spermatheca two-chambered; anterior chamber large, oval. Posterior spermatheca kidney-shaped, diameter approximately half diameter of anterior spermatheca, bent at almost right angle in posterior view; inlet of posterior spermatheca right next to inlet of anterior spermatheca. Central pocket absent. Fertilization ducts short, half length of posterior spermatheca and arising from ventral side of it, diagonally oriented.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	distribution	Distribution Sumatra: Jambi Province.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
2B0187A9785AAF5FED66FE8DFAB30BB4.taxon	discussion	Natural history All specimens were collected by canopy fogging in jungle rubber plantations and are considered arboreal.	en	Dhiya’Ulhaq, Naufal Urfi, Buchori, Damayanti, Scheu, Stefan, Drescher, Jochen (2025): Eleven new species of jumping spiders (Araneae, Salticidae) from Sumatra. European Journal of Taxonomy 1015: 1-68, DOI: 10.5852/ejt.2025.1015.3061, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3061/13681
