First record of Siamspinops Dankittipakul & Corronca, 2009 from India, first description of the female of Makdiops shevaroyensis (Gravely, 1931), and a catalogue of Indian selenopid fauna (Araneae, Selenopidae) Author Sankaran, Pradeep M. Division of Arachnology, Department of Zoology, Sacred Heart College, Thevara, Cochin, Kerala 682 013, India. Author Kadam, Gautam 83 a Kapil Nagar, Vetal bambarde, Kudal, Sindhudurg, Maharashtra 416 520, India. Author Sudhikumar, Ambalaparambil Vasu 0000-0002-4479-4995 Centre for Animal Taxonomy and Ecology, Department of Zoology, Christ College, Irinjalakuda, Thrissur, Kerala 680 125, India. avsudhi @ rediffmail. com; https: // orcid. org / 0000 - 0002 - 4479 - 4995 avsudhi@rediffmail.com Author Tripathi, Rishikesh 0000-0003-0884-5625 Centre for Animal Taxonomy and Ecology, Department of Zoology, Christ College, Irinjalakuda, Thrissur, Kerala 680 125, India. avsudhi @ rediffmail. com; https: // orcid. org / 0000 - 0002 - 4479 - 4995 & rishikeshtripathi 14 @ gmail. com; https: // orcid. org / 0000 - 0003 - 0884 - 5625 rishikeshtripathi14@gmail.com text Zootaxa 2022 2022-10-04 5194 1 109 121 journal article 157355 10.11646/zootaxa.5194.1.6 ab96b6a5-c0ed-4a99-bd2f-fb0a5c439f6f 1175-5326 7142079 345FE712-0A1F-4EC8-B5EF-AC13FCF539E8 Siamspinops garoensis Kadam, Tripathi & Sankaran, 2022 sp. nov. Figs 1–4 , 8 Etymology. The specific epithet is an adjective and refers to the type locality of the new species. Type material. Holotype : ♂ from INDIA : Meghalaya : North Garo Hills : Resu Haluapara ( 25°55.42′N , 90°35.97′E ; 197 m a.s.l. ), 05 April 2022 , from tree trunk, by hand, G. Kadam (ZSI/ WGRC /I. R .-INV.20973) . Paratypes : 1 ♀ , same data as for the holotype ; 1 ♀ , same data as for the holotype except West Jaintia Hills : Raliang ( 25°30.41′N , 92°28.32′E ; 1089 m a.s.l. ), 08 April 2022 (ZSI/ WGRC /I. R .-INV.20974 & 20975) . Diagnosis. Siamspinops garoensis sp. nov. is most similar to Siamspinops formosensis (Kayashima, 1934) as both share a short, hook-shaped median apophysis, semi-circular posterior epigynal pockets, and M-shaped uterus externus, but can be distinguished by the following combination of characters: males by distally rounded ventral branch of retrolateral tibial apophysis (vs. distally narrow in S . formosensis ), dorsal branch of retrolateral tibial apophysis broad along its entire length in ventral view (vs. distally narrow in S . formosensis ) and conductor with sclerotised retrolateral apex ending at 3-o’ clock ventrally (vs. 4-o’ clock in S . formosensis ) (compare Figs 2H , 4A with Yu et al. 2019 : figs 9, 15); females by deep posteromedian excavation of epigyne (vs. less deep in S . formosensis ) and copulatory ducts with 14 turns (vs. 9 turns in S . formosensis ) (compare Figs 3H–I , 4C–E with Yu et al. 2019 : figs 4–5, 12–13). Description. Male ( holotype , Figs 2A–F , colouration in alcohol): Carapace, eye region, clypeus, chelicerae, endites, labium yellowish brown; sternum, leg and palp segments, opisthosoma, spinnerets creamy-white; carapace, dorsal chelicerae, dorsal and lateral opisthosoma, leg and palp segments with olive green blotches and streaks. Carapace covered with scattered fine white hairs, with brownish streaks; thoracic margin with curved setae ( Fig. 2B ). Eyes on low tubercles, encircled with black pigment ( Fig. 2C ). Chelicerae significantly longer than those of female; promargin with four and retromargin with two teeth ( Figs 2E–F ). Sternum round, hirsute ( Fig. 2D ). Opisthosoma sub-oval, hirsute ( Fig. 2A ). All tarsi with well-developed claw tufts. Body length 8.64. Carapace 4.07 long, 4.70 wide. Opisthosoma 4.58 long, 3.94 wide. Eye sizes and interdistances: ALE 0.11, AME 0.21, PLE 0.23, PME 0.21; ALE–ALE 1.71, AME–ALE 0.49, AME–AME 0.17, PLE–PLE 2.09, PME–PLE 0.41, PME–PME 0.84. Clypeus height at AMEs 0.12, at ALEs 0.26. Length of chelicerae 1.82. Length of palp and legs: palp 4.71 [1.62, 0.66, 0.82, 1.61], I 17.01 [5.11, 1.91, 4.55, 3.88, 1.56], II 21.96 [7.02, 2.11, 6.05, 5.12, 1.66], III 20.19 [6.98, 1.79, 5.42, 4.53, 1.47], IV 16.87 [5.81, 1.64, 4.36, 3.77, 1.29]. Leg formula: 2341. Spination of palp: femur pld 1 plv 3 do 3 rlv 5, patella pl 1 pld 2 do 2, tibia pl 2 pld 3 do 2 rl 1 rld 2, tarsus/cymbium pl 2 do 2 rld 1; legs: femur I pl 2 do 3, II–IV do 3; patellae I–IV 0; tibia I plv 7 rlv 8, II plv 7 rlv 7, III–IV 0; metatarsus I plv 6 rlv 6, II plv 6 rlv 5, III rlv 2, IV 0; tarsi I–IV 0. FIGURE 1. Field photographs of Siamspinops garoensis Kadam, Tripathi & Sankaran, 2022 sp. nov. (A–B). A paratype female 1 (ZSI/WGRC/I.R.-INV.20974); B paratype female 2 (ZSI/WGRC/I.R.-INV.20975); C–D distant and close-up views of the collection site of Siamspinops garoensis Kadam, Tripathi & Sankaran, 2022 sp. nov. Photo credit Gautam Kadam. Palp ( Figs 2G–J , 4A–B ): ventral branch of retrolateral tibial apophysis small, distally rounded and spoonshaped ( Figs 2H–I , 4A–B ; vRTA); dorsal branch of retrolateral tibial apophysis large, laminate, 2x wider than ventral branch of retrolateral tibial apophysis ( Figs 2H–J , 4A–B ; dRTA). Cymbium rounded, with long marginal setae ( Figs 2G, I–J ). Tegulum nearly flat, rounded ( Figs 2H , 4A–B; T ). Median apophysis small, unbranched, hookshaped ( Figs 2H–I , 4A–B ; MA). Conductor T-shaped, with long, folded, sclerotised and pointed retrolateral apex ( Figs 2H–I , 4A–B; C , arrow 1). Embolus filiform, originating retrolaterally at 3-o’ clock position (left palp in ventral view), encircling tegulum, with short and sclerotised embolic base, with chisel-shaped tip, with a slight constriction near the tip ( Figs 2G–I , 4A–B; E , EB, arrow 2). Female ( paratype , Figs 1A , 3A–F , colouration in alcohol): General aspects essentially as in male except the following: habitus dull pinkish creamy-white with pale dark blotches and streaks; opisthosoma posteriorly with indistinct chevron pattern ( Fig. 3A ). Chelicerae comparatively short; promargin with three teeth, retromargin with two ( Figs 3E–F ). Body length 10.36. Carapace 3.84 long, 4.56 wide. Opisthosoma 6.52 long, 4.95 wide. Eye sizes and interdistances: ALE 0.10, AME 0.19, PLE 0.21, PME 0.19; ALE–ALE 1.72, AME–ALE 0.50, AME–AME 0.14, PLE–PLE 1.91, PME–PLE 0.26, PME–PME 0.82. Clypeus height at AMEs 0.12, at ALEs 0.21. Length of chelicerae 1.47. Length of palp and legs: palp 3.61 [1.09, 0.60, 0.70, 1.22], I 13.80 [4.18, 1.63, 3.74, 3.02, 1.23], II 12.76 [4.19, 1.29, 3.38, 2.73, 1.17], III 16.12 [5.74, 1.55, 4.35, 3.33, 1.15], IV 14.14 [5.05, 1.37, 3.59, 3.01, 1.12]. Leg formula: 3412. Spination of palp: femur pld 1 plv 3 do 3 rld 1, tarsus pl 2 pld 2 do 2 rl 2 rld 1; legs: tibia I plv 8 rlv 8, II plv 7 rlv 7, III–IV pld 1; metatarsus II plv 6 rlv 5, III–IV 0. Genitalia ( Figs 3G–I , 4C–E ): epigyne with posteromedian excavation ( Figs 3G–I , 4C–E ; arrow 3), with semi-circular posterior epigynal pockets having sclerotised triangular prolateral rims, retrolateral rims indistinct ( Figs 3G–H , 4C ; EP). Copulatory openings small, semi-circular, obliquely oriented, with sclerotised prolateral rims ( Figs 3G–H , 4C ; CO), enclosing a broad epigynal median field having wavy lateral margins ( Figs 3G–H , 4C ; MF). Copulatory ducts long, compact, convoluted with 14 turns ( Figs 3I , 4D–E ; CD). Spermathecae short, lying posteromedially ( Fig. 4E; S ). Proximal part of copulatory ducts, spermathecae and fertilization ducts covered by M-shaped, hyaline uterus externus ( Figs 3I , 4D ; UE). Accessory bulbs of spermathecae thick, anteriorly oriented ( Figs 3I , 4D–E ; AB). Fertilization ducts leaf-like, diverging ( Fig. 4E ; FD). FIGURE 2. Siamspinops garoensis Kadam, Tripathi & Sankaran, 2022 sp. nov. , holotype male (ZSI/WGRC/I.R.-INV.20973). A habitus, dorsal; B carapace, dorsal; C habitus, frontal; D prosoma showing endites, labium and sternum, ventral; E–F left chelicera (E prolateral, F retrolateral); G–J left palp (G prolateral, H ventral, I retrolateral, J dorsal). Scale bars: A, 2 mm; B, D, 1 mm; C, E–J, 0.5 mm. Variation. Female (n=2): body length 9.43–10.36. Second female specimen ( Fig. 1B ) shows variation in leg spination as follows: tibia I plv 7 rlv 8, II plv 7 rlv 8, metatarsus II plv 5 rlv 5. Distribution. Known only from Meghalaya , India ( Figs 1C–D , 8 ). Remarks. First record of the genus from India .