Masteria tayrona

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

publication ID

http://doi.org/ 10.5281/zenodo.1441911

publication LSID

lsid:zoobank.org:pub:20E7F0F5-7592-47CE-B67F-36DE0124E76F

persistent identifier

http://treatment.plazi.org/id/03D95431-A217-8E44-FF36-4DB9FC957B3A

treatment provided by

Plazi

scientific name

Masteria tayrona
status

n. sp.

Masteria tayrona  n. sp.

( Figs 22View FIGURE 22, 30EView FIGURE 30, 32View 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 167162View Materials  ; ♀ paratype (same locality from holotype) deposited in IBSP 167163View 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 –CView 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. 22FView 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. 22AView 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 4CView FIGURE 4, Fig. 22DView FIGURE 22 ̄E, 30E). Palpal tibia twice length of cymbium with ventral apical depression, ( Fig. 22BView 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. 22BView 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. 22FView 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. 32View FIGURE 32).

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Masteria