Revealing the diversity of ant-eating spiders in Colombia I: morphology, distribution and taxonomy of the barronus group of the genus Tenedos O. Pickard-Cambridge, 1897 (Araneae: Zodariidae) Author Martínez, Leonel Author Brescovit, Antonio D. 0000-0002-1511-5324 antonio.brescovit@butantan.gov.br Author Quijano, Luis G. 0000-0001-5434-8588 luis.quijano@posgrado.ecologia.edu.mx text Zootaxa 2022 2022-05-02 5130 1 1 154 http://dx.doi.org/10.11646/zootaxa.5130.1.1 journal article 54143 10.11646/zootaxa.5130.1.1 cb1cf563-e6fb-49fe-a5c9-bacb69eb2576 1175-5326 6520717 ABF61117-DD64-4A32-BD61-20E577F80C3D Tenedos yurayaco sp. n. Figs 72 ; 75A, D ; 107 . Type material. Holotype : COLOMBIA . Caquetá : San José de Fagua , Alto del Río Yurayaco , Secondary forest fragment, Winkler extractor, 1000m [ 1°20′N , 76°6′W ], E. González leg., 7.IX.2000 , 1 ♂ (IAvH-I-44) . Paratypes : same data as the holotype, 1 ♂ (IAvH-I-645), 1 ♂ (IAvH-I-646) . Etymology. The specific name is a noun in apposition taken from the type locality. Diagnosis. Males of Tenedos yurayaco sp. n. , can be distinguished by bifid retrolateral tibial apophysis (RTA), with thin and pointed anterior branch (aRTA), curved, long posterior branch (pRTA); median apophysis (MA) with concave anterior branch (aMA); very short posterior branch (pMA) ( Figs 72C–F ; 75A, D ). Description. Male ( Holotype , IAvH-I-44). Coloration ( Fig. 72A–B ): carapace uniformly brown-reddish, dark brown in margins. Chelicerae with paturon brown, fangs brown-reddish. Endites light brown, white on anterior region. Labium and sternum brown. Legs: Coxae I–IV light yellow. Femora I–IV light brown. Patellae I–IV light brown. Tibia I pale yellow, I–IV light brown. Metatarsi-tarsi light brown. Abdomen: dorsally dark gray with seven white guanine spots organized as follows: two small and rounded spots, anteriorly positioned; two lateral spots larger than previous one, anteromedially positioned; two small and rounded spots with an anterior notch, medially positioned; a wide and transversal band, posteriorly positioned. Laterally dark gray with a very wide spot, posteriorly positioned. Ventrally dark gray covered by a large light spot. Spinnerets light brown. Measurements: total length 5.89, carapace length 2.98, width 1.87, height 1.22. Clypeus height 0.62. Eye diameters and interdistances: AME 0.11, ALE 0.13, PME 0.13, PLE 0.15; AME–AME 0.19, AME–ALE 0.24, AME–PME 0.27, PME–PME 0.29, PME–PLE 0.39, ALE–PLE 0.28. Chelicerae 0.91 length. Sternum length 1.23, width 1.10. Legs: I—femur 2.06/ patella 0.68/ tibia 1.99/ metatarsus 2.04/ tarsus 1.34/ total 8.11; II—1.75/ 0.69/ 1.46/ 1.67/ 1.03/ 6.60; III—1.51/ 0.53/ 1.01/ 1.75/ 0.86/ 5.66; IV—1.96/ 0.67/ 1.39/ 2.69/ 1.26/ 4.02. Abdomen length 2.61. Legs spines pattern as general pattern. Palp: retrolateral process of cymbium (RPC) long, wide, widening slightly towards base; tegulum (T) large, rounded, almost as long as wide, retrolateral excavation very accentuated; subtegulum (St) longer than wide; conductor (C) developed, wide with short; appendix (ApC) long, sharp; embolus (E) long, filiform towards apex; base of embolus (EB) with small projection, approximately two times as long as basal tegular membrane; basal tegular membrane (BTM) originated basally on tegulum, ending as very long appendix; spermatic ducts (SD) S-shaped with both folds full opened; ventral tibial apophysis (VTA) very small, tubular, strongly sclerotized; median apophysis (MA) large, bifid, anterior branch (aMA) squared with folded edges, posterior branch (pMA) very short; retrolateral tibial apophysis (RTA) with posterior branch (pRTA) longer than palpal tibia, ventrally projected ( Figs 72C–F ; 75A, D ). FIGURE 72. Tenedos yurayaco sp. n. A–B. Male habits (IAvH-I-44): A. Dorsal view. B. Ventral view. C–F. Male palp: C. Ventral view. D. Prolateral. E. Retroventral view. F. Retrolateral view. Scale bars: A–B: 2mm; C–F: 500µm. Variation. Males (n=3): total length: 4.88–5.61; carapace length: 2.71–2.98; femur I length: 1.50–2.06. Distribution. Known from Caquetá department ( Fig. 107 ).