Tenedos chiribiquete, Martínez & Brescovit & Martínez, 2023

Martínez, Leonel, Brescovit, Antonio D. & Martínez, Carlos Prieto, 2023, Revealing the diversity of ant-eating spiders in Colombia II: morphology, distribution, and taxonomy of the trilobatus group of the genus Tenedos O. Pickard-Cambridge, 1897 (Araneae: Zodariidae), Zootaxa 5328 (1), pp. 1-66 : 54-63

Tenedos chiribiquete sp. n. Martínez & Brescovit

Figs 40–43 ; 45

Type material. Holotype: COLOMBIA. Caquetá: Solano, Río Samarano, Parque Nacional Natural Chiribiquete , Bosque Aledaño al Campamento , pristine amazonian forest fragment, pitfall trap, 300 m, [0°10′47′′N, 72°36′24′′W], E. González leg., 15-17.IV.2000, 1 ♁ (IAvH-I-6199) . Paratypes: same data as the holotype, 1 ♀ (IAvH-I-6200), 1 ♀ (IAvH-I-6201), 3 ♁ (IAvH-I-6204), 1 ♁ (IAvH-I-6202), 1 ♁ (IAvH-I-6203). Vaupés: Lago Taraira, Reserva Natural Mosiro-Itajura, Caparú , Centro Ambiental Caparú , 60 m, [1°4′S, 69°31′W], M. Sharkey & D. Anas leg., 20.I-1.II.2003, 1 ♁ (IAvH-I-6205) .

Other material examined. COLOMBIA. Caquetá: Solano, Río Samarano, Parque Nacional Natural Chiribiquete , pitfall trap, bosque de tierra firme, 300 m (00°10’47’’N 72°37′24′′W), 03-05.IV.2000, E. González leg, 1 ♁ ( IBSP 324045 ) , same data, but (00°09′26′′N 72°37′45′′W), 09-11.IV.2000, bosque verde obscuro, 1♁ ( IBSP 324948 ) ; Río Cuñaré, Parque Nacional Natural Chiribiquete (00°31′03′′N 72°38′27,7′′W), 10-14.XI.2000, E. González, M. Ospina col., 300m, bosque verde manzana, winkler extractor, 1♀ ( IBSP 324949 ) .

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

Diagnosis. Males of Tenedos chiribiquete sp. n. can be distinguished by strongly sclerotized, wide median apophysis with pointed anterior tip, posterior branch of the retrolateral tibial apophysis (pRTA) short, knife-shaped, embolus base (EB) wide, strongly projected ( Figs 41A–D ; 42A–B ; 43A–F ). Females are distinguished by having very short copulatory ducts (CD) tangled with spermathecae (S) forming a rounded strongly sclerotized structure ( Figs 41E–F ; 42C–D ).

Description. Male (Holotype, IAvH-I-6199). Coloration ( Fig. 40A–B ): carapace orange, dark brown in margins. Chelicerae with brown paturon, fangs brown-reddish. Endites brown, white on anterior region. Labium and sternum brown slightly dark in margins. Legs: coxae I–IV pale yellow brown on prolateral and retrolateral sides. Femora I–IV whitish, apical and basally light brown. Patellae-tarsi I–IV light brown, except by tibia I, which is whitish. Abdomen: dorsally dark gray with five white guanine spots organized as follows: two small and oval spots very close to each other, anteriorly positioned; two transverse spots medially fused, medially positioned; one large, wide, transverse band, posteriorly positioned. Lateral dark gray without spots. Ventrally dark gray with a large spot, covering all abdominal area. Spinnerets pale brown. Measurements: total length 6.16, carapace length 3.46, width 2.01, height 1.39. Clypeus height 0.66. Eye diameters and interdistances: AME 0.11, ALE 0.13, PME 0.11, PLE 0.15; AME–AME 0.27, AME–ALE 0.28, AME–PME 0.33, PME–PME 0.31, PME–PLE 0.43, ALE–PLE 0.31. Chelicerae length 1.14 largo. Sternum length 1.23, width 1.19. Legs: I—femur 1.86/ patella 0.51/ tibia 2.26/ metatarsus 2.09/ tarsus 1.24/ total 7.96; II—1.63/ 0.45/ 1.73/ 1.74/ 0.94/ 6.49; III—1.81/ 0.53/ 1.59/ 1.87/ 0.89/ 6.69; IV—2.31/ 0.73/ 1.93/ 2.83/ 1.12/ 8.92. Abdomen length 2.73. Legs spines pattern (only the differences from the general pattern): I—tibia 1 r-1r-0, metatarsus v 1r-1r-2; II—tibia v 1r-1r-1r, metatarsus v 2-1p-2; III—tibia v 1p-2-2, metatarsus v 1r-1r-2. Palp: retrolateral process of cymbium (RPC) thin, long; tegulum (T) longer than wide, membranous; subtegulum (St) visible in ventral view as short, wide region with rounded external edge; conductor (C) with poorly projected prolateral laminar region, rounded strongly sclerotized distal projection; appendix (ApC) very wide, apically square; embolus (E) inserted basally on tegulum, very filiform; embolus base (EB) wide, notably projected; spermatic ducts (SD) S-shaped thin curved in the base; ventral tibial apophysis (VTA) inconspicuous; median apophysis (MA) large, laminar, with sharp anterior projection; retrolateral tibial apophysis (RTA) with (pRTA) shorter than palpal tibia, anterior branch (aRTA) reduced ( Figs 41A–D ; 42A–B ; 43A–F ).

Female (Paratype, IAvH-I-6200). Coloration and abdominal pattern of spots as male with some modifications: carapace uniformly brown, legs light brown, and abdominal spots rounded ( Fig. 41C–D ). Measurements: total length 3.33, carapace length 1.29, width 0.80, height 0.70. Clypeus height 0.26. Eye diameters and interdistances: AME 0.05, ALE 0.07, PME 0.05, PLE 0.07; AME–AME 0.10, AME–ALE 0.14, AME–PME 0.13, PME–PME 0.13, PME–PLE 0.21, ALE–PLE 0.12. Chelicerae 0.42 length. Sternum length 0.53, width 0.54. Legs: I—femur 0.42/ patella 0.22/ tibia 0.64/ metatarsus 0.34/ tarsus 0.43/ total 2.05; II—0.47/ 0.29/ 0.49/ 0.45/ 0.37/ 2.07; III—0.66/ 0.23/ 0.56/ 0.50/ 0.40/ 2.35; IV—0.81/ 0.31/ 0.62/ 0.80/ 0.45/ 2.99. Abdomen length 1.87. Legs spines pattern (only the differences from the general pattern): I—tibia v 1r-0-2, II—tibia v 1r-1r-0; IV—tibia v 1r-1r-1r, metatarsus v 2-1p-2. Epigyne: lateral borders (LB) very short, fused at medial side, atrium not delimited; median field plate (MFP) very small with rounded basal edge; copulatory ducts (CD) very short tangled with spermathecae, uncoiled; spermathecae (S) rounded, posteriorly positioned; fertilization ducts (FD) shorter than spermathecae ( Figs 41E–F ; 42C–D ).

Variation. Males (n=3): total length: 5.40–6.66; carapace length: 2.79–3.46; femur I length: 1.66–1.86.

Distribution. Known from Caquetá and Vaupés departments, Colombia ( Fig. 45 ).

Figures

FIGURE 40. Tenedos chiribiquete sp. n. A−B. Male habitus (IAvH-I-6199): A. Dorsal view. B. Ventral view. C−D. Female habitus (IAvH-I-6200): C. Dorsal view. D. Ventral view. Scale bars: A−D: 1.5 mm.

FIGURE 41. Tenedos chiribiquete sp. n. A−D. Male palp (IAvH-I-6199): A. Prolateral view. B. Retroventral view. C. Ventral view. D. Retrolateral view. E−F. Female epigynum (IAvH-I-6200): C. Ventral view. D. Dorsal view. Scale bars: A−D: 0.5 mm; E−F: 0.2 mm.

FIGURE 42. Tenedos chiribiquete sp. n. A−B. Male palp (IAvH-I-6199): A. Ventral view. B. Retrolateral view. C−D. Female epigynum (IAvH-I-6200): C. Ventral view. D. Dorsal view. Abbreviations: ApC, appendix of the conductor; C, conductor; CD, copulatory ducts; E, embolus; FD, fertilization ducts; LB, lateral borders; MA, median apophysis; MFP, median field plate; pRTA, posterior branch of retrolateral tibial apophysis; S, spermathecae; SD, spermatic ducts. A−B: 0.5 mm; C−D: 0.2 mm.

FIGURE 43. Tenedos chiribiquete sp. n. A−F. Male palp (IBSP 324945), SEM images: A. Ventral view. B. Median and appendix of conductor apophysis details. C. Retrolateral view. D. Retrolateral tibial apophysis. E. Proventral view. F. Prolateral view. Abbreviations: ApC, appendix of the conductor; C, conductor; E, embolus; MA, median apophysis; pRTA, posterior branch of retrolateral tibial apophysis; St, subtegulum. Scale bars: A, C, E, F: 0.3 mm; B, D: 0.1 mm.

FIGURE 45. Distribution map of the species belonging to the trilobatus species group in Colombia.