Masteria golovatchi Alayón, 1995

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73 : 38-39

Masteria golovatchi Alayón, 1995

( Figs 21 , 32 )

Masteria golovatchi Alayón, 1995: 5 , fig 2 A–D.

Type. CUBA. ♂ holotype, Paso Cuba (20°8’18”N; 75°12’22”W), Baracoa, Guantanamo, Cuba, 16.XII.1981, S. Golovatch leg., deposited in MNHNC, examined.

Additional material examined. CUBA. Guantanamo: Baracoa, Parque Alexander Humboldt (20°8’18”N; 75°12’22’W), 1♀, 16.VI.2012, F. Cala leg. ( IBSP 167160 ) ; Subida al Yunque (20°21’8”N; 74°34’26”W), 3♀, 5 immatures, 02.VI.2012, F. Cala leg. ( IBSP 167 157) ; Santiago de Cuba: Baconao, El Retiro (19°54’7”N; 75°27’46”W), 1♀, 1 immature, 03.XI.2002, A. Sanchez leg. ( IBSP 167158 ) ; Reparto Terrazas , 1 immature, 12.I.1998, W. R. Torvel leg. ( IBSP 167159 ) ; La Gran Piedra (20°01’00”N; 75°38’00”W), 1♀, 04-08.V.2012, A. Deler & F. Cala leg. ( IBSP 167161 ) .

Diagnosis. Males of Masteria golovatchi resemble those of M. aimeae in the grouped megaspines on apex of tibia I ( Fig. 21B ), but differ in the globose palpal bulb and shorter embolus ( Fig. 21C ). Females resemble those of M. aimeae in the spermathecae with dense glandular region and projected base, but differ in the narrow and elongated lobes ( Fig. 21D–E ).

Description. Male (Holotype). Color: Carapace in dorsal and ventral views, legs and abdomen whitish. Total length 3.29. Carapace 1.47 long, 1.13 wide. Abdomen 1.82 long. Fovea 0.07. Clypeus 0.03. Ocular tubercle 0.16 long, 0.20 wide. Eyes: six, posterior row slightly recurved ( Fig. 21A ). AME absent, ALE 0.12, PME 0.03, PLE 0.11. Basal segment of chelicerae with 12 prolateral teeth, and 11 smaller mesobasal teeth. Labium 0.16 long, 0.26 wide. Sternum 0.68 wide, 0.82 long. Palp: femur 0.88/ patella 0.54/ tibia 0.82/ tarsus 0.47/ total 2.71; Legs I: femur 1.25/ patella 0.72/ tibia 1.10/ metatarsus 0.91/ tarsus 0.69/ total 4.67; II: 0.97/ 0.57/ 0.82/ 0.79/ 0.63/ total 3.78; III: 1.10/ 0.47/ 0.79/ 0.85/ 0.63/ 3.84; IV: 1.47/ 0.72/ 1.25/ 1.29/ 0.82/ 5.55; Leg formula 4132; Spination: palp: patella v1-1, tibia p1; Legs I: patella v1 ap, tibia p1, metatarsus v1; II: femur r1, patella v1-1, r1, tibia v1-1 -3ap, r1, metatarsus v1-1 -1, r1; III: femur p1, r1, patella v1, p1-1, r1, tibia d1-1, v1-2 -1-3ap, p1-1, r1-1, metatarsus d1-1, v3- 3 -3ap, p1-1, r1; IV: femur p1, r1, patella v2 ap, p1-1, r1, tibia d1-1, v2 b-1-2-2ap, p2-1-1, r1-1-1, metatarsus d1, v3- 3 -3ap, p1-1, r1-1-1. Tibia I with 6 strong prolateral apical spines ( Fig. 21B ). Palpal tibia 2.5 times length of cymbium, with row of dorsal and ventral elongated slender setae, 12 strong and short spines on medial portion of tibia ( Fig. 21C ). Cymbium as long as wide with 4 apical spines. Embolus smaller than tegulum and slightly curved ( Fig. 21C ). PLS: basal, medial and apical, 0.47, 0.47, 0.44 long.

Female (IBSP 167160). Color: carapace in dorsal view yellowish, carapace in ventral view, legs and abdomen whitish. Total length 3.04. Carapace 1.60 long, 1.16 wide. Abdomen 1.44 long. Fovea 0.15. Clypeus 0.03. Ocular tubercle 0.15 long, 0.20 wide. Eyes: six, posterior row slightly recurved. AME absent, ALE 0.07, PME 0.03, PLE 0.11. Basal segment of chelicerae with 10 prolateral teeth, and 10 smaller mesobasal teeth. Labium 0.19 long, 0.29 wide. Sternum 0.69 wide, 0.79 long. Palp lost; Legs I: femur 1.22/ patella 0.63/ tibia 1.04/ metatarsus 0.72/ tarsus 0.63/ total 4.24; II: 0.94/ 0.50/ 0.63/ 0.60/ 0.54/ 3.21; III: 0.94/ 0.44/ 0.60/ 0.72/ 0.57/ 3.27; IV: 1.19/ 0.66/ 1.10/ 0.94/ 0.69/ 4.58; Leg formula 4132. Spination: palp lost, except tarsus. Legs I: femur p1, patella v1, p1, tibia v1-1 - 3ap, p1, metatarsus v1 b-1ap; II: femur p1, patella v1, p1-1, tibia v1-1 -3ap, p1, metatarsus v1-1 -1, p1; III: femur p1, r1, patella v2, p1-1, r1-1, tibia d1-1-1, v1-1 -3ap, p1-1, r1-1-1, metatarsus d1-2, v2-3 -3ap, p1-1, r1; IV: femur p1, patella v1, p1, r1, tibia d1-1, v1-1 -2-3ap, p1-1, r2-1-1, metatarsus d1-2, v3-3 -3ap, p1, r1-1. Palpal claw with 17 teeth. Spermathecae bilobed with strongly projected base, external and internal lobe connected at base, and apex globose ( Fig. 21D–E ). PLS: basal, medial and apical, 0.41, 0.32, 0.32 long.

Distribution. Cuba ( Fig. 32 ).

Figures

FIGURE 21. Masteria golovatchi Alayón, 1995. (male, holotype, female IBSP 167157). A–C, male. A Eyes, dorsal view; B Group of prolateral megaspines on tibia I (left leg, prolateral view); C Palp, retrolateral view; D, E Female genitalia, dorsal view. Scale bar: A 1mm; B, C 0.1mm; D, E 100µm.

FIGURE 32. Distribution map of Masteria species.