Chickering, 1966 : 162
Masteria barona : Brignoli, 1983: 126
On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae)
Passanha, Victor
Brescovit, Antonio D.
Zootaxa
2018
2018-08-30
4463
1
1
73
936S7
(Chickering, 1966)
Chickering
1966
[151,612,1447,1474]
Arachnida
Dipluridae
Masteria
GBIF
Animalia
Araneae
16
17
Arthropoda
species
barona
Accola barona Chickering, 1966: 162, figs 9–11. Masteria barona: Brignoli, 1983: 126.
Type. TRINIDAD AND TOBAGO. ♂ holotype, William Beebe Tropical Research Station( 10°41'1"N; 61°17'W), Arima Valley, Arima, Saint George County, Trinidadand Tobago, 23.IV.1964, A. M. Chickeringleg., deposited in MCZ, examined. Additional material examined: TRINIDAD AND TOBAGO. Saint GeorgeCounty, Arima, Las Lapas Road( 10°37’0”N; 61°16’0”W), 23.VII.1979, 2♂, L.N. Sorkinleg. ( AMNH); Andrew’s Trace( 10°37’0”N; 61°16’0”W), 16.VII.1979, 2♀, L.N. Sorkinleg. ( AMNH); ArimaValley ( 10°37’0”N; 61°16’0”W), 10–22. II.1964, 1♂, 4♀, P. Wygodzinsky, D. Rosenleg. ( AMNH).
Diagnosis.Males of Masteria baronaresemble those of M. petrunkevitchiand M. soucouyant n. sp.in the elongated shape of the palpal bulb. They differ from those of M. petrunkevitchiin the presence of only six eyes ( Fig. 9A), and from M. soucouyant n. sp.in the absence of spines on the retrolateral palpal tibia. Females differ from those of the other species in the bilobed spermathecae, with similar height and not sinuous ( Fig. 9F–G). Description Male ( Trinidad, Saint GeorgeCounty, Arima, Las Lapas road, AMNH). Color: Carapace in dorsal and ventral views and legs yellowish brown, whitish abdomen. Total length 4.56. Carapace 2.04 long, 1.48 wide. Abdomen 2.52 long. Fovea 0.09. Clypeus 0.03. Ocular tubercle 0.12 long, 0.24 wide. Eyes: six, posterior row slightly recurved ( Fig. 9A). AME absent, ALE 0.11, PME 0.07, PLE 0.09. Basal segment of chelicerae with 11 prolateral teeth, and 11 smaller mesobasal teeth. Labium 0.19 long, 0.32 wide. Sternum 0.96 wide, 0.76 long. Palp: femur 1.14/ patella 0.60/ tibia 1.08/ tarsus 0.30/ total 3.12; Legs I: femur 1.74/ patella 0.72/ tibia 1.56/ metatarsus 1.32/ tarsus 0.84/ total 6.18; II: 1.74/ 0.72/ 1.02/ 1.14/ 0.84/ 5.46; III: 1.56/ 0.72/ 1.08/ 1.20/ 0.84/ 5.40; IV: 1.98/ 0.90/ 1.80/ 1.68/ 0.96/ 7.32; Leg formula 4123; Spination: Legs I: tibia v2, p1, metatarsus v1-1ap; II: patella v1ap, tibia v1-1-1ap, p1, metatarsus v1-1-1, p1; III: patella v1ap, r1, tibia v1-1- 2ap, p1-1, r1-1-1, metatarsus d1, v2-2-1, p1-1-1, r1-1-1; IV: patella v2ap, r1, tibia d1-1, v1-1-1-1-1-2ap, p1-1, r1-1-1, metatarsus d1-1, v2-2-3ap, p1-1, r1-1. Tibia I: P3 more apical with two strong apical spines with projected base, P2 a robust spine with normal base just below P3, and a rounded apical spur, P1 ( Figs 9D, 29B). Palpal tibia three times length of cymbium. Cymbium as wide as long, with five apical spines. Palpal bulb with short tegulum, embolus twice length tegulum, with slight median curvature and narrowed distally ( Fig. 9B, C, E). PLS: basal, medial and apical segments 0.62, 0.57, 0.52 long. Female ( Trinidad, Saint GeorgeCounty, Arima, Andrew’s Trace, AMNH). Color: Carapace in dorsal and ventral views yellowish brown, legs light brown and whitish abdomen. Total length, 3.35. Carapace 1.60 long, 1.33 wide. Abdomen 1.75 long. Fovea 0.11. Clypeus 0.04. Ocular tubercle 0.20 long, 0.28 wide. Eyes: six, posterior row slightly recurved. AME absent, ALE 0.12, PME 0.07, PLE 0.11. Basal segment of chelicerae with 11 prolateral teeth, and 10 smaller mesobasal teeth. Labium 0.26 long, 0.28 wide. Sternum 0.76 wide, 0.86 long. Palp: femur 0.90/ patella 0.46/ tibia 0.70/ tarsus 0.68/ total 2.74; Legs I: femur 1.20/ patella 0.62/ tibia 1.02/ metatarsus 0.80/ tarsus 0.62/ total 4.26; II: 1.02/ 0.52/ 0.80/ 0.72/ 0.50/ 3.56; III: 1.10/ 0.57/ 0.87/ 0.90/ 0.57/ 4.01; IV: 1.42/ 0.70/ 1.30/ 1.12/ 0.75/ 5.26; Leg formula 4132; Spination: Palp: tarsus v1b; Legs I: patella v1, tibia v1-1-3ap, p1, r1, metatarsus v1-1ap; II: patella v1, tibia v1-1-3ap, p1, metatarsus v1ap, p1; III: femur r1, patella p1, r1-1, tibia d1, v1-1-1-2ap, p1-1-1, r1-1, metatarsus d1, v1-1-3ap, p1, r1; IV: patella v1-1, p1, tibia d1, v1-1-3ap, p1-1-1-1, r1-1, metatarsus d1, v1-1-3ap, p1-1, r1-1. Palpal claw with 16 teeth. Genitalia with two bilobed spermathecae, each pair over a glandular region slightly elevated, external lobe elongated with globose apex, ental lobe high and uniform ( Fig. 9F–G). PLS: basal, medial and apical 0.60, 0.45, 0.55 long.
Variation. 2 males: total length 4.56–4.62. 6 females: total length 2.84–3.72.
Distribution. North of Trinidad and Tobago( Fig. 33).
1913893202
1964-04-23
MCZ
Trinidad & A. M. Chickering
Trinidad and Tobago
Saint George County
10.683611
Arima Valley
909
-61.283333
William Beebe Tropical Research Station
16
17
2
1
Arima
holotype
1913893208
[199,907,1759,1784]
Trinidad and Tobago
TOBAGO
16
17
1
TOBAGO
1913893205
[918,1153,1760,1783]
Trinidad and Tobago
Saint George
16
17
1
Saint George
1913893207
1979-07-23
AMNH
L. N. Sorkin
Trinidad and Tobago
10.616667
Las Lapas Road
21
-61.266666
16
17
2
2
Arima
1913893222
1979-07-16
AMNH
L. N. Sorkin
Trinidad and Tobago
10.616667
Andrew's Trace
21
-61.266666
16
17
2
2
Arima
1913893211
1964-02-10
1964-02-22
1964-02-10
AMNH
P. Wygodzinsky & D. Rosen
Trinidad and Tobago
10.616667
Arima
21
-61.266666
16
17
5
4
1
Arima