Masteria aguaruna, Passanha & Brescovit, 2018

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73 : 34-36

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.5970196
persistent identifier	https://treatment.plazi.org/id/03D95431-A211-8E40-FF36-49C7FD8D78D1
treatment provided by	Plazi
scientific name	Masteria aguaruna
status	sp. nov.

Treatment

Masteria aguaruna View in CoL n. sp.

( Figs 19 View FIGURE 19 , 17C–D View FIGURE 17 , 30D View FIGURE 30 , 33 View FIGURE 33 )

Types. PERU. ♂ holotype, Santuário Nacional Tabaconas (7°9’52”S; 78°30’38”W), Namballe, Cajamarca, III.2008, S. Castro leg., deposited in IBSP 167153 View Materials GoogleMaps ; ♀ paratype, Zungaracocha (7°9’52”S; 8°30’38”W), San Juan Bautista, Loreto, Iquitos, 08-09.IV.2013, C.A. Rheims & R.P. Indicatti leg., deposited in IBSP 167154 View Materials GoogleMaps .

Additional material examined. PERU. Cajamarca: Namballe, Santuário Nacional Tabaconas (7°9’52”S; 78°30’38”W) 2♂, III.2008, S. Castro leg. (MACN-AR-30562). GoogleMaps

Etymology. The specific name is a noun in apposition and refers to an ancestral Peruvian amazon tribe, Aguaruna.

Diagnosis. Males of Masteria aguaruna n. sp. resemble those of Masteria colombiensis , M. downeyi , M. lewisi , M. yacambu n. sp., M. amarumayu n. sp. and M. mutum n. sp. in the piriform palpal bulb and differ in the elongate embolus with median longitudinal keels and pointed embolus ( Fig. 19B–C View FIGURE 19 ). Females resemble those of Masteria colombiensis , M. amarumayu n. sp. and M. mutum n. sp. in the bilobed spermathecae, with the ectal lobe thickened and projected with large glands on base but differ from those of M. colombiensis in the elongate ental lobe; from M. amarumayu n. sp. in the ectal lobe being shorter and thicker apically and from M. mutum n. sp. in the longer ental lobe ( Fig. 19F View FIGURE 19 ).

Description. Male (Holotype). Color: Carapace in dorsal view and legs yellowish, carapace in ventral view and abdomen whitish. Total length 3.73. Carapace 1.79 long, 1.32 wide. Abdomen 1.94 long. Fovea 0.10. Clypeus 0.04. Ocular tubercle 0.19 long, 0.25 wide. Eyes: six, posterior row strongly recurved ( Fig. 19A View FIGURE 19 ). AME absent, ALE 0.09, PME 0.06, PLE 0.10. Basal segment of chelicerae with 10–12 prolateral teeth, and 10–12 smaller mesobasal teeth. Labium 0.22 long, 0.22 wide. Sternum 0.82 wide, 0.88 long. Palp: femur 1.03/ patella 0.67/ tibia 0.91/ tarsus 0.57/ total 3.14. Legs I: femur 1.44/ patella 0.85/ tibia 1.44/ metatarsus 1.03/ tarsus 0.91/ total 5.67; II: 1.25/ 0.69/ 1.06/ 0.94/ 0.79/ total 4.73; III: 1.13/ 0.47/ 0.91/ 0.94/ 0.72/ 4.17; IV: 1.60/ 0.69/ 1.44/ 1.44/ 0.91/ 6.08; Leg formula 4123; Spination: palp: femur p1, patella v1-3 ap, p1, r1, tibia p1; Legs I: femur p1, patella v1-3 ap, p1, tibia v1-1 -3ap, p1-1, metatarsus v1-1; II: femur p1, patella v1-3 ap, p1-1-1, tibia d2b-1, v1-1 -3ap, p1, r1, metatarsus v1-1 -1, p1; III: femur p1, r1, patella v1-3 ap, p1-1, r1, tibia d2b-1, v1-1 -1-3ap, p1-1, r1-1, metatarsus d1-1, v2 b-1-1- 3, p1; IV: femur p1, r1, patella v1-3 ap, p1, r1-1, tibia d2b-1-1, v1-1 -1-3ap, p1-1-1, r2-1-1, metatarsus d1-1-1-1-2ap, v2-2 -3ap, p1, r1. Tibia I: P1 conical and with strong spur, P2 a strong spine with projected base below P1 and P3, and P3 two strong spines sharing the same projected base. Metatarsus I a flattened basal spine and basal depression associated with prolateral processes of tibia I ( Figs 19E View FIGURE 19 , 30D View FIGURE 30 ). Palpal tibia 1.5 times length of cymbium, with ventral apical depression, row of ventral and dorsal elongated slender setae, 35–40 strong and short spines on retrolateral area ( Fig. 19D View FIGURE 19 ). Cymbium as long as wide with four apical spines. Palpal bulb with globose tegulum and long embolus, smaller than length of tegulum, tapering to apex ( Fig. 19B–C View FIGURE 19 ). PLS: basal, medial and apical, 0.60, 0.54, 0.54 long.

Female (Paratype). Color: Live specimen, carapace in dorsal view, legs, spinnerets and abdomen brownish, chelicerae brown ( Fig. 17C–D View FIGURE 17 ). In alcohol: Carapace, legs and abdomen whitish. Total length 2.50. Carapace 1.25 long, 1.04 wide. Abdomen 1.25 long. Fovea 0.06. Clypeus 0.03. Ocular tubercle 0.16 long, 0.22 wide. Eyes: six, posterior row strongly recurved. AME absent, ALE 0.09, PME 0.04, PLE 0.07. Basal segment of chelicerae with 10–12 prolateral teeth, and 10–12 smaller mesobasal teeth. Labium 0.19 long, 0.25 wide. Sternum 0.72 wide, 0.75 long. Palp: femur 0.79/ patella 0.44/ tibia 0.63/ tarsus 0.60/ total 2.46; Legs I: femur 1.16/ patella 0.66/ tibia 1.00/ metatarsus 0.79/ tarsus 0.60/ total 4.21; II: 0.94/ 0.54/ 0.72/ 0.63/ 0.57/ 3.40; III: 0.91/ 0.47/ 0.66/ 0.72/ 0.54/ 3.30; IV: 1.16/ 0.50/ 0.97/ 0.94/ 0.60/ 4.17; Leg formula 1423. Spination: palp: femur p1, patella d1ap, v1-3 ap, p1, tibia d1b-1, v1-1 -3ap, tarsus v1 b; Legs I: femur p1, patella v1-3 ap, p1, r1, tibia v1-1 -3ap, p1, metatarsus v1-1 -1; II: femur p1, patella v1-3 ap, p1, tibia v1-1 -3ap, p1b-1, metatarsus v1-1 -1; III: femur p1, r1, patella v1-3 ap, p1, r1-1, tibia d1-1, v1-1 -3ap, p1, r2-1-1, metatarsus d1-2ap, v2 b-1-3ap, p1; IV: femur p1, r1, patella v1-3 ap, p1, r1-1, tibia v1-1 -1-3ap, p1, r2-1-1, metatarsus d1-1-2ap, v2 b-1-3ap, p1. Palpal claw with 16 teeth. Spermathecae bilobed, ectal lobe conical, with thick base, dense glandular region, rounded apex, inner with short duct and elongated apex ( Fig. 19F View FIGURE 19 ). PLS: basal, medial e apical, 0.38, 0.32, 0.32 long.

Variation. 2 males: total length 3.72–3.73.

Distribution. Northern Peru ( Fig. 33 View FIGURE 33 ).