Tenedos eberhardi, 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 : 90-94

Tenedos eberhardi sp. n.

Figs 63–65 ; 106 .

Type material. Holotype: COLOMBIA. Risaralda: Pereira, Santuario de Flora y Fauna Otún Quimbaya , Camino Cuchilla , Secondary forest of forest dominated by Quercus humboldti, Pitfall trap, 1960m [4°44′N, 75°35′W], G. López leg., 30.III-20.IV.2004, 1 ♂ (IAvH-I-659) . Paratypes: same data as the holotype, 1 ♀ (IAvH-I-585), Robledal, 1980m, same collector, 12-28.VII.2004, 1 ♂ (IAvH-I-660) .

Etymology. The specific epithet is a patronymic in honor of the eminent arachnologist William Eberhard by his many contributions on ethology and evolution of the spiders, mainly focused on the spider webs evolution.

Diagnosis. Males of Tenedos eberhardi sp. n., resembles T. santarosa sp. n. and T. tatama sp. n., by wide posterior branch of the retrolateral tibial apophysis (pRTA) and thin anterior branch (aRTA) ( Figs 64A–D ; 65A–B ; 67A–D ; 68A–B ; 70A–D ; 71A–B ), further this species is distinguished from T. santarosa sp. n. by having nine dorsal abdominal spots (vs thirteen T. santarosa sp. n.). Males are diagnosed by flattened median apophysis (MA) with very short anterior tip, wide posterior branch of the retrolateral tibial apophysis (pRTA). Females are characterized by lateral borders (LB) reaching the basal region of median field plate (MFP); median field plate flattened in dorsal surface; seminal receptacle forming glass-shaped lumen in dorsal view ( Figs 64E–F ; 65C–D ; 67E–F ; 68C–D ; 70E–F ; 71C–D ).

Description. Male (Holotype, IAvH-I-659). Coloration ( Fig. 63A–B ): carapace uniformly dark brown. Chelicerae with paturon brown, fangs brown-reddish. Endites brown, white on anterior region. Labium and sternum brown. Legs: Coxae I–IV light yellow. Femora I–IV brown, with a medial light patch. Patellae-tibiae dark brown. Metatarsus I pale yellow with brown patches on basal and distal sides, II–IV brown. Tarsi I–IV brown. Abdomen: dorsally dark gray with nine white guanine spots organized as follows: two elongated spots, anteriorly positioned; two oval spots larger than previous ones, medially positioned; two transversal and small spots, in posteromedial position; three transversal and wide spots joined in median region, posteriorly positioned. Laterally dark gray without spots. Ventrally dark gray with small spots on lateral sides and a long and wide central spot. Spinnerets light brown. Measurements: total length 6.15, carapace length 3.38, width 2.19, height 1.38. Clypeus height 0.67. Eye diameters and interdistances: AME 0.12, ALE 0.14, PME 0.11, PLE 0.17; AME–AME 0.25, AME–ALE 0.33, AME–PME 0.35, PME–PME 0.36, PME–PLE 0.47, ALE–PLE 0.35. Chelicerae 0.81 length. Sternum length 1.25, width 1.06. Legs: I—femur 2.07/ patella 0.78/ tibia 1.96/ metatarsus 1.61/ tarsus 1.42/ total 7.84; II—1.79/ 0.70/ 1.38/ 1.20/ 0.84/ 5.91; III—1.66/ 0.76/ 1.24/ 1.41/ 0.73/ 5.80; IV—2.15/ 0.98/ 1.69/ 2.17/ 1.02/ 8.91. Abdomen length 2.81. Legs spines pattern (only the differences from the general pattern): II—tibia v1r-1r-1r, metatarsus v1r-1r-2; IV— tibia v2-2-2. Palp: retrolateral process of cymbium (RPC) long, widening towards base; tegulum (T) rounded; subtegulum (St) large, longer than wide in ventral view; conductor (C) large, with short, thin sclerotized region on distal side; appendix (ApC) short, apically sharp; embolus (E) long, laminar at base, filiform towards apex; base of embolus (EB) approximately as long as half of basal tegular membrane; basal tegular membrane (BTM) very wide, originated basally on tegulum, reticulated, very short, apically rounded; spermatic ducts (SD) S-shaped, short, wide, with both folds full open; ventral tibial apophysis (VTA) large, anteriorly projected; median apophysis (MA) large, wide, strongly sclerotized, with small posterior projection very short, concave; posterior branch of the retrolateral tibial apophysis (pRTA) large, almost as long as palpal tibia ( Figs 64E–F ; 65C–D ).

Female (Paratype, IAvH-I-585). Coloration and abdominal pattern of spots as male, except legs uniformly brown ( Fig. 63C–D ). Measurements: total length 5.86, carapace length 3.01, width 1.95, height 1.27. Clypeus height 0.58. Eye diameters and interdistances: AME 0.11, ALE 0.12, PME 0.11, PLE 0.18; AME–AME 0.24, AME–ALE 0.28, AME–PME 0.37, PME–PME 0.33, PME–PLE 0.47, ALE–PLE 0.38. Chelicerae 0.85 length. Sternum length 1.16, width 1.04. Legs: I—femur 1.78/ patella 0.71/ tibia 1.57/ metatarsus 1.23/ tarsus 0.94/ total 6.23; II—1.52/ 0.77/ 1.21/ 1.02/ 0.77/ 5.29; III—1.38/ 0.61/ 0.92/ 0.93/ 0.58/ 4.42; IV—1.77/ 0.81/ 1.48/ 1.59/ 0.98/ 6.63. Abdomen length 3.02. Legs spines pattern (only the differences from the general pattern): I—tibia v2-0-0, metatarsus v1r-0-2; II—tibia v1r-1r-0, metatarsus v1r-0-2; III—metatarsus v2-0-2. Epigyne: lateral borders (LB) short, curved towards posteromedial region of epigyne, forming medial, large atrium (A), rounded in apex; median field plate (MFP) very large, sub-quadrangular-shaped; copulatory ducts (CD) short, wide, almost undistinguished from spermathecae; seminal receptacles (SR) long, wide at base, distally thin, lightly curved towards median septum; spermathecae (S) large, irregulars, posteriorly positioned; fertilization ducts (FD) longer than spermathecae length ( Figs 64E–F ; 65C–D ).

Variation. Males (n=2): total length: 5.26–3.15; carapace length: 2.90–3.38; femur I length: 1.93–2.07.

Distribution. Known from Risaralda department ( Fig. 106 ).

Figures

FIGURE 63. Tenedos eberhardi sp. n. A–B. Male habitus (IAvH-I-659): A. Dorsal view. B. Ventral view. C–D. Female habitus (IAvH-I-585): C. Dorsal view. D. Ventral view. Scale bar: A–D: 2.5mm.

FIGURE 64. Tenedos eberhardi sp. n. A–D. Male palp (IAvH-I-659):A. Prolateral view. B. Retroventral view. C. Ventral view. D. Retrolateral view. E–F. Female epigyne (IAvH-I-585): E. Ventral view. F. Dorsal view. Scale bars: A–B: 300µm; C–D: 500 µm; E–F: 200µm.

FIGURE 65. Tenedos eberhardi sp. n. A–B. Male palp (IAvH-I-659): A. Ventral view. B. Retrolateral view. C–D. Female epigyne (IAvH-I-585): 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; LB, lateral borders; MA, median apophysis; pRTA, posterior branch of the retrolateral tibial apophysis; MFP, median field plate; RPC, retrolateral process of the cymbium; S, spermathecae; SD, spermatic ducts; SR, seminal receptacles; T, tegulum; VTA, ventral tegular apophysis.

FIGURE 67. Tenedos santarosa sp. n. A–D. Male palp (IAvH-I-651):A. Prolateral view. B. Retroventral view. C. Ventral view. D. Retrolateral view. E–F. Female epigyne (IAvH-I-656): E. Ventral view. F. Dorsal view. Scale bars: A–B: 300µm; C–D: 500 µm; E–F: 200µm.

FIGURE 68. Tenedos santarosa sp. n. A–B. Male palp (IAvH-I-651): A. Ventral view. B. Retrolateral view. C–D. Female epigyne (IAvH-I-656): C. Ventral view. D. Dorsal view. Scale bars: A–B: 200µm; C–D: 500µm. Abbreviations: ApC, appendix of the conductor; FD, fertilization ducts; LB, lateral borders; pRTA, posterior branch of the retrolateral tibial apophysis; MFP, median field plate; S, spermathecae; SR, seminal receptacles; T, tegulum; VTA, ventral tegular apophysis.

FIGURE 70. Tenedos tatama sp. n. A–D. Male palp (IAvH-I-2965): A. Prolateral view. B. Retroventral view. C. Ventral view. D. Retrolateral view. E–F. Female epigyne (IAvH-I-666): E. Ventral view. F. Dorsal view. Scale bars: A–B: 300µm; C–D: 500 µm; E–F: 200µm.

FIGURE 71. Tenedos tatama sp. n. A–B. Male palp (IAvH-I-2965): A. Ventral view. B. Retrolateral view. C–D. Female epigyne (IAvH-I-666): C. Ventral view. D. Dorsal view. Scale bars: A–B: 200µm; C–D: 500µm. Abbreviations: ApC, appendix of the conductor; C, conductor; FD, fertilization ducts; MA, median apophysis; pRTA, posterior branch of the retrolateral tibial apophysis; MFP, median field plate; S, spermathecae; St, subtegulum; SR, seminal receptacles; VTA, ventral tegular apophysis.

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