Tenedos ayo, Martínez & Brescovit & Quijano, 2022

Martínez, Leonel, Brescovit, Antonio D. & Quijano, Luis G., 2022, 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), Zootaxa 5130 (1), pp. 1-154 : 27-31

Tenedos ayo sp. n.

Figs 15–17 ; 106 .

Type material. Holotype: COLOMBIA. Amazonas : Río Ayo , Corregimento La Pradera, Floodable forest, Pitfall trap, 70m [1°19′S, 69°35′W], F. Quevedo leg., 6-7.VI.2002, 1 ♂ (IAvH-I-2974) . Paratypes: same data as the holo-type, 1 ♀ (IAvH-I-2975), same collector, 16-20.VI.2002, 1 ♂ 1 ♀ (IAvH-I-3732) .

Etymology. The specific epithet is a noun in apposition to the type locality of the species.

Diagnosis. Tenedos ayo sp. n. resembles T. barronus ( Chamberlin, 1925) and T. hoeferi Jocqué & Baert, 2002 , by having similar structural organization of male palp: developed conductor (C): curved at prolateral side, short, conical retrolateral tibial apophysis (RTA) (see Jocqué & Baert, 2002: 87, 100, figs 10A–B; 18B–C; figs 12A–D; 13A–B; 14A–F), but can be recognized by laminar, long median apophysis (MA), thinner, apically sharp retrolateral tibial apophysis (RTA) ( Figs 16A–D ; 17A–B ). Females are similar to those of T. hoeferi Jocqué & Baert, 2002 and T. quadrangulatus Jocqué & Baert, 2002 , by long seminal receptacles (RTA), curved towards median septum of epigyne; knob-shaped median field plate (MFP) (see Jocqué & Baert, 2002: 87, 100, 116, figs 10C–D, 18D–E, 33A–B; figs 16E–F; 17C–D), but can be distinguished by thinner seminal receptacles (SR); smaller, basally rounded median field plate; rounded spermathecae (S), closely related to copulatory ducts (CD) ( Figs 16E–F ; 17C–D ).

Description. Male (IAvH-I-2974). Coloration ( Fig. 15A–B ): carapace brown-reddish with dark brown margins. Chelicerae brown with dark paturon base, fangs brown-reddish. Endites light brown, white on anterior region. Labium and sternum light brown. Legs: coxae I–IV light yellow. Femora-tarsi light brown. Abdomen: dorsally dark gray with nine white guanine spots organized as follows: four spots are dispositioned on anterior side: two rounded, central and are fused on medial region, and two lateral and wide, extending to ventral region; two central and rounded spots larger than previous ones, anteriorly projected, on sub-medial positioned; two very long and transversal bands, extending to ventral region, medially positioned; a large transversal spot, posteriorly positioned. Laterally dark gray spots as above. Ventrally pale beige. Spinnerets light brown. Measurements: total length 3.26, carapace length 1.67, width 1.10, height 0.56. Clypeus height 0.32. Eye diameters and interdistances: AME 0.07, ALE 0.08, PME 0.09, PLE 0.09; AME–AME 0.14, AME–ALE 0.17, AME–PME 0.21, PME–PME 0.17, PME–PLE 0.25, ALE–PLE 0.20. Chelicerae 0.55 length. Sternum length 0.68, width 0.66. Legs: I—femur 1.08/ patella 0.36/ tibia 0.91/ metatarsus 0.84/ tarsus 0.47/ total 3.66; II—0.94/ 0.40/ 0.70/ 0.62/ 0.41/ 3.07; III—0.85/ 0.35/ 0.63/ 0.76/ 0.39/ 2.98; IV—1.16/ 0.37/ 0.95/ 1.30/ 0.69/ 4.47. Abdomen length 1.38. Legs spines pattern (only the differences from the general pattern): III—tibia v1r-0-2, metatarsus v1r-0-1r; IV—tibia v1r-1r-2. Palp: retrolateral process of cymbium (RPC) wide, external edge rounded; tegulum (T) rounded, almost as wide as long; subtegulum (St) longer than wide, external edge rounded, small ventral projection; conductor (C) developed, long, thin sclerotized region at distal side; appendix (ApC) long, apically sharp; embolus (E) long, wide at base, filiform towards apex; base of embolus (EB) approximately as long as four times basal tegular membrane; basal tegular membrane (BTM) very short, apically rounded; spermatic ducts (SD) S-shaped, anterior fold closed, very wide, posterior fold open, thin; ventral tibial apophysis (VTA) short, apically straight; median apophysis (MA) laminar, long, apically folded; retrolateral tibial apophysis (RTA) conical almost as long as palpal tibia, apically sharp ( Figs 16A–D ; 17A–B ).

Female (IAvH-I-2975). Coloration ( Fig. 15C–D ): Coloration and abdominal spots pattern as male, carapace dark brown with Y-shaped paler spot anterior to fovea. Abdomen with separated central spots. Measurements: total length 4.20, carapace length 2.02, width 1.27, height 0.91. Clypeus height 0.41. Eye diameters and interdistances: AME 0.08, ALE 0.09, PME 0.09, PLE 0.11; AME–AME 0.14, AME–ALE 0.17, AME–PME 0.22, PME–PME 0.20, PME–PLE 0.36, ALE–PLE 0.21. Chelicerae 0.58 length. Sternum length 0.79, width 0.78. Legs: I—femur 1.15/ patella 0.46/ tibia 1.05/ metatarsus 0.85/ tarsus 0.62/ total 4.13; II—0.96/ 0.36/ 0.73/ 0.77/ 0.59/ 3.41; III—0.95/ 0.41/ 0.60/ 0.80/ 0.52/ 3.28; IV—1.31/ 0.46/ 0.99/ 1.37/ 0.74/ 4.87. Abdomen length 2.16. Legs spines pattern (only the differences from the general pattern): I—tibia v1r-0-0, metatarsus v2-0-2; II—metatarsus v1r-0-2; III—tibia v2-1p-2. Epigyne: lateral borders (LB) short, posteriorly positioned, delimiting rounded atrium (A); median field plate (MFP) wider than long, basal edge rounded; copulatory ducts (CD) very short, wide, almost undistinguished from spermathecae; seminal receptacles (SR) long, thin, curved towards median septum; spermathecae (S) large, rounded, posteriorly positioned; fertilization ducts (FD) approximately as long as spermathecae length ( Figs 16E–F ; 17C–D ).

Variation. Males (n=2): total length: 3.10–3.26; carapace length: 1.67–1.82; femur I length: 1.08–1.26.

Distribution. Known from Amazonas department, Colombia ( Fig. 106 ).

Figures

FIGURE 15. Tenedos ayo sp. n. A–B. Male habitus (IAvH-I-2974): A. Dorsal view. B. Ventral view. C–D. Female habitus (IAvH-I-2975): C. Dorsal view. D. Ventral view. Scale bar: A–D: 2mm.

FIGURE 16. Tenedos ayo sp. n. A–D. Male palp (IAvH-I-2974): A. Prolateral view. B. Retroventral view. C. Ventral view. D. Retrolateral view. E–F. Female epigyne (IAvH-I-2975): E. Ventral view. F. Dorsal view. Scale bars:A–B: 200µm; C–D: 500µm; E–F: 100µm.

FIGURE 17. Tenedos ayo sp. n. A–B. Male palp (IAvH-I-2974): A. Ventral view. B. Retrolateral view. C–D. Female epigyne (IAvH-I-2975): C. Ventral view. D. Dorsal view. Scale bars: A–B: 200µm; C–D: 500µm. Abbreviations: ApC, appendix of the conductor; C, conductor; E, embolus; FD, fertilization ducts; MA, median apophysis; MFP, median field plate; RPC, retrolateral process of the cymbium; S, spermathecae; St, subtegulum; SR, seminal receptacles.

FIGURE 106. Distribution map of the species belonging to barronus species group in Colombia.