Tenedos ayo Martínez & Brescovit & Quijano 2022, sp. n

Autor: Martínez, Leonel, Brescovit, Antonio D., Quijano, Luis G.
Rok vydání: 2022
Předmět:
DOI: 10.5281/zenodo.7625268
Popis: 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).
Published as part of 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), pp. 1-154 in Zootaxa 5130 (1) on pages 27-31, DOI: 10.11646/zootaxa.5130.1.1, http://zenodo.org/record/6520717
{"references":["Chamberlin, R. V. (1925) New North American spiders. Proceedings of the California Academy of Sciences, Series 4, 14, 105 - 142.","Jocque, R. & Baert, L. (2002) A revision of the Neotropical spider genera Tenedos O. P. - Cambridge and Ishania Chamberlin (Araneae, Zodariidae). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Entomologie, 72, 67 - 173."]}
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