Masteria tayrona, Passanha & Brescovit, 2018

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73 : 40

publication ID	https://doi.org/ 10.5281/zenodo.1441911
publication LSID	lsid:zoobank.org:pub:20E7F0F5-7592-47CE-B67F-36DE0124E76F
DOI	https://doi.org/10.5281/zenodo.5970204
persistent identifier	https://treatment.plazi.org/id/03D95431-A217-8E44-FF36-4DB9FC957B3A
treatment provided by	Plazi
scientific name	Masteria tayrona
status	sp. nov.

Treatment

Masteria tayrona View in CoL n. sp.

( Figs 22 View FIGURE 22 , 30E View FIGURE 30 , 32 View FIGURE 32 )

Types. COLOMBIA. ♂ holotype , ♀ paratype, Sierra Nevada de Santa Marta (10°34’0”N; 73°36’0”W) GoogleMaps , San Sebastian de Rabago, 01-14.IV.1968, B. Malkin leg. deposited in AMNH ; ♂ paratype (same locality from holotype) deposited in IBSP 167162 View Materials ; ♀ paratype (same locality from holotype) deposited in IBSP 167163 View Materials .

Additional material examined. COLOMBIA, San Sebastian de Rabago: Sierra Nevada de Santa Marta (10°34’0N; 73°36’0”W), 1♂, 7♀, 01-14.IV.1968, B. Malkin leg. ( AMNH).

Etymology. In apposition to the Tayrona tribe, native from Colombia, who lived along the whole extension of Sierra Nevada de Santa Marta before Spanish colonization.

Diagnosis. Males of Masteria tayrona n. sp. differ from those of other species in the flattened embolus with internal median keel, and 6–7 rows of strong and short retrolateral spines on palpal tibia ( Fig. 22B–C View FIGURE 22 ). Females resemble those of Masteria yacambu n. sp. in the spermathecae with at least four lobes, but differ in the ectal lobe elongated and with a small space between the lobes ( Fig. 22F View FIGURE 22 ). Males differ from those of the sympatric M. colombiensis by the twisted bulb.

Description. Male ( Colombia, Sierra Nevada de Santa Marta, San Sebastian de Rabago, AMNH). Color: Carapace in dorsal view and legs orange, carapace in ventral view and abdomen light brown. Total length 3.67. Carapace 1.79 long, 1.41 wide. Abdomen 1.88 long. Fovea 0.08. Clypeus 0.02. Ocular tubercle 0.22 long, 0.29 wide. Eyes: eight, posterior row recurved ( Fig. 22A View FIGURE 22 ). AME, 0.03, ALE 0.13, PME 0.07, PLE 0.09. Basal segment of chelicerae with 11 prolateral teeth, and 12 smaller mesobasal teeth. Labium 0.19 long, 0.32 wide. Sternum 0.82 wide, 1.00 long. Palp: femur 0.91/ patella 0.60/ tibia 0.91/ tarsus 0.44/ total 2.86. Legs I: femur 1.47/ patella 0.91/ tibia 1.38/ metatarsus 1.07/ tarsus 0.88/ total 5.71; II: femur 1.13/ patella 0.63/ tibia 0.91/ metatarsus 0.91/ tarsus 0.63/ total 4.21; III: 1.16/ 0.63/ 0.94/ 1.04/ 0.69/ 4.46; IV: 1.57/ 0.79/ 1.32/ 1.35/ 0.82/ 5.85; Leg formula 4132; Spination: palp: femur p1, patella v1-3 ap, p1, r1, tibia p1; Legs I: femur p1, patella v1-4 ap, p1, tibia d2b-1-1-1-1-1- 1, v1-1, p1, metatarsus v1-1 -1; II: femur p1, r1, patella v1-3 ap, p1-1, tibia d2b-1-1-1-1-1-1, v1-1 -3ap, p1, metatarsus v1-1 -2ap, p1; III: femur p1, r1, patella v1-3 ap, p1-1, r1, tibia d1b-1-1, v1-1 -1-1-3ap, p1-1, r1-1, metatarsus d1-2ap, v2-2 -3, p1-1, r1b; IV: femur p1, r1, patella v1-3 ap, p1-1, r1, tibia d1-1-1, v1-1 -2-3ap, p1-1, r2- 1-1, metatarsus d1-2ap, v3-3 -3ap, p1-1, r1-1. Tibia I: P1 a strong and projected spur with dentate apex, P2 a strong spine with base slightly projected below P1 and P3, and P3 two strong spines sharing same projected base. Metatarsus I with flattened basal spine and basal depression associated with prolateral processes of tibia I ( Figs 4C View FIGURE 4 , Fig. 22D View FIGURE 22 ̄E, 30E). Palpal tibia twice length of cymbium with ventral apical depression, ( Fig. 22B View FIGURE 22 ). Cymbium as long as wide with 4 apical spines. Palpal bulb piriform with globose tegulum, embolus short, with two-thirds length of tegulum and spatulated tip ( Fig. 22B View FIGURE 22 ̄C). PLS: basal, medial and apical, 0.60, 0.50, 0.57 long.

Female (Paratype). Color: Carapace in dorsal view orange, carapace in ventral view and legs yellowish brown and abdomen light brown. Total length 5.51. Carapace 2.38 long, 1.72 wide. Abdomen 3.13 long. Fovea 0.10. Clypeus 0.04. Ocular tubercle 0.25 long, 0.38 wide. Eyes: 8, posterior row recurved. AME 0.04, ALE 0.14, PME 0.08, PLE 0.14. Basal segment of chelicerae with 11 prolateral teeth, and 15̄18 smaller mesobasal teeth. Labium 0.25 long, 0.47 wide. Sternum 1.07 wide, 1.29 long. Palp: femur 1.16/ patella 0.66/ tibia 0.94/ tarsus 0.88/ total 3.64; Legs I: femur 1.75/ patella 1.00/ tibia 1.41/ metatarsus 1.19/ tarsus 0.79/ total 6.14; II: 1.47/ 0.85/ 1.04/ 1.07/ 0.79/ 5.22; III: 1.44/ 0.79/ 1.00/ 1.13/ 0.75/ 5.11; IV: 1.97/ 0.94/ 1.54/ 1.57/ 0.85/ 6.87; Leg formula 4123. Spination: palp: femur p1, patella v1-3 ap, p1, tibia v1-3 ap, tarsus v1 b; Legs I: femur p1, patella v1-3 ap, p1, tibia v1-1 -3ap, p1, metatarsus v1-1 -1; II: femur p1, patella v1-3 ap, p1, tibia v1-1 -3ap, p1, metatarsus v1-1 -1; III: femur p1, r1, patella v1-3 ap, p1-1, r1, tibia d2b-1, v1-1 -3ap, p1-1, r1, metatarsus d1-2, v2-3 -3ap, p1; IV: femur p1, r1, patella v1-3 ap, p1, r1, tibia d1, v1-1 -1-3ap, p1-1, r2-1-1, metatarsus d1-2, v2-2 -3ap, p1-1-1, r1-1. Palpal claw with 13 teeth. Spermathecae a dense glandular region, with 4̄5 lobes, ectal lobes with longer ducts and globose apex, most ental lobe short and globose ( Fig. 22F View FIGURE 22 ). PLS: basal, medial and apical, 0.63, 0.63, 0.60 long.

Variation. 2 males: total length 3.66–3.67. 4 females: total length 3.82–5.50.

Distribution. Colombia, San Sebastian de Rabago ( Fig. 32 View FIGURE 32 ).