Masteria aguaruna

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

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-A211-8E40-FF36-49C7FD8D78D1

treatment provided by

Plazi

scientific name

Masteria aguaruna
status

n. sp.

Masteria aguaruna  n. sp.

( Figs 19View FIGURE 19, 17C –DView FIGURE 17, 30DView FIGURE 30, 33View 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 167153View MaterialsGoogleMaps  ; ♀ 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 167154View MaterialsGoogleMaps  .

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 –CView 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. 19FView 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. 19AView 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 19EView FIGURE 19, 30DView 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. 19DView 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 –CView 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 –DView 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. 19FView 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. 33View FIGURE 33).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Masteria