On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae)
Passanha, Victor
Brescovit, Antonio D.
Zootaxa
2018
2018-08-30
4463
1
1
73
6Z35H
Passanha & Brescovit, 2018
Passanha & Brescovit
2018
[151,358,1159,1185]
Arachnida
Dipluridae
Siremata
GBIF
Animalia
Araneae
67
68
Arthropoda
species
lucasae
sp. nov.
Types. BRAZIL. ♂ holotype, ♀ paratype, Reservas do Km41, Projeto Dinâmica Biológica de Fragmentos Florestais( PDBFF), ( 03°06’07”S; 60°1’30”W), Manaus, Amazonas, VIII.1999, H. F. Cunhaleg., deposited in IBSP 167213and 167214, respectively.
Additional material examined. BRAZIL, Amazonas: Manaus, Reserva Colombo ( 03°06’07”S; 60°1’30”W), 3♂, 1♀, 26.X.2001, ( IBSP 13818); 13♂, 08-30.XI.2001, A. A. N. Rego leg. (IBSP 13819); Reservas do Km41, Projeto Dinâmica Biológica de Fragmentos Florestais( PDBFF), ( 03°06’07”S; 60°1’30”W), 3♂, 1♀, VIII.1999, H. F. Cunhaleg. ( IBSP 167215); Reserva Florestal Adolpho Ducke( 2°57’42”S; 59°55’40”W), 1♂, no data, Equipe SMNKleg. ( SMNK 8634).
Etymology. In honor of arachnologist, Dr. Sylvia Marlene Lucas, from the Instituto Butantan, for her many contributions to the study of Mygalomorphae.
Diagnosis. Males of Siremata lucasae n. sp.resemble those of S. valteri n. sp.in the elongated palpal bulb ( Fig. 44C), but differ in the absence of a medial ventral megaspine on tibia I and the large number and length of the retrolateral spines on the palpal tibia ( Fig. 44E). Females are more similar to those of S. valteri n. sp.as they have spermathecae with long ducts; but differ in the presence of a dense glandular region ( Fig. 44B–D).
Description. Male (IBSP 13819). Legs II, III and IV of female ( paratypeIBSP 167 214) are lost, as the specimen damaged.Color: Carapace in dorsal and ventral views and legs orange, abdomen in dorsal view brown, in ventral view whitish. Total length 3.67. Carapace 1.82 long, 1.50 wide. Abdomen 1.85 long. Fovea 0.10. Clypeus 0.03. Ocular tubercle 0.25 long, 0.35 wide. Eyes: anterior row straight, posterior slightly procurved ( Fig. 44A). ALE 0.15, PME 0.04, PLE 0.14. Basal segment of chelicerae with 13 prolateral teeth, and 15–18 smaller mesobasal teeth, in irregular row. Labium 0.16 long, 0.32 wide. Sternum 0.94 wide, 1.00 long. Palp: femur 0.94/ patella 0.54/ tibia 0.72/ tarsus 0.50/ total 1.73; Legs I: femur 1.69/ patella 0.60/ tibia 1.50/ metatarsus 1.25/ tarsus 0.94/ total 5.98; II: 1.41/ 0.69/ 1.16/ 1.00/ 0.91/ total 5.17; III: 1.35/ 0.60/ 1.10/ 1.10/ 0.79/ 4.94; IV: 1.72/ 0.72/ 1.57/ 1.54/ 1.00/ 6.55; Leg formula 4123; Spination: palp: femur d1-1-1-1-1-1-1-1-1-1, v2-2-2-2-2-2-2-2-2-2, p1, patella d2ap, tibia d1b, v1-1-1, p1; Legs I: patella v1-1, p1, tibia v1-1-3ap, p1, metatarsus v1-1-1; II: femur p1, r1, patella d1, v2- 3ap, p1, r1, tibia v1-1-3ap, p1-1-1, r1, metatarsus v1-1-1, p1; III: femur p1, r1, patella v1-2ap, p1-1, r1, tibia d1b, v1-1-3ap, p1-1, r1-1-1, metatarsus d1-1, v2-2-3ap, p1-1, r1-1-1; IV: femur p1, r1, patella d1, v1-1, p1-1, r1, tibia d1b, v1-1-1-3ap, p1-1-1-1-1-1, r1-1-1-1-1, metatarsus d1-2ap, v2-1-1-3ap, p1-1-1, r1. Tibia I without megaspines. Short palpal tibia 1.5 times length of cymbium, basally dilated, with row of ventral and dorsal elongated setae, tibia with 20–25 long and tapered spines retrolaterally ( Fig. 44E). Cymbium with retrolateral depression ( Fig. 44C), four apical spines. Palpal bulb elongated with short tegulum, long embolus, twice as long as tegulum, with wide base and tapering distally, with basal groove ( Fig. 44C). PLS: basal, medial and apical, 0.63 0.63, 0.60 long. FIGURE 44. Siremata lucasae n. sp.(male and female, IBSP 167215). AMale eyes, dorsal view; BFemale genitalia, dorsal view; CPalpal bulb, retrolateral view; DFemale genitalia, dorsal view; ERetrolateral grouped spines on palpal tibia, retrolateral view. Abbreviations: BG, basal groove. Scale bar: A200µm; B, C100µm; D200µm; E100µm. Female ( Paratype). Color: as in male. Total length 4.25. Carapace 1.75 long, 1.72 wide. Abdomen 2.50 long. Fovea damaged. Clypeus 0.03. Ocular tubercle 0.22 long, 0.38 wide. Eyes: as in male. ALE 0.16, PME 0.06, PLE 0.12. Basal segments of chelicerae with 13 prolateral teeth, and 10–18 smaller mesobasal teeth, in irregular row. Labium 0.22 long, 0.44 wide. Sternum 0.94 wide, 1.04 long. Palp: femur 1.19/ patella 0.63/ tibia 0.97/ tarsus 0.97/ total 3.76; Legs I: femur 1.79/ patella 0.97/ tibia 1.57/ metatarsus 1.35/ tarsus 1.07/ total 6.75; legs II, III and IV lost. Spination: palp: femur p1, patella v1-2ap, p1, r1, tibia v1-1-3ap, p1-1-1, tarsus v1; Legs I: femur p1, patella v1-3ap, tibia d1b, v1-1-1-3ap, p1-1-1-1-1-1, metatarsus v1-1-1-1; legs II, III and IV lost. Palpal claw with 13 teeth. Spermathecae bilobed, ectal lobe with long and slender ducts, half length of ental lobe, large and sparse glands in ducts and denser on base. ( Fig. 44B–D). PLS: basal, medial and apical 0.82, 0.75, 0.79 long. Variation. 4 males: total length 3.07–3.67.
Distribution. Brazil, Manaus, Amazonas( Fig. 45).
1913893257
[151,497,1266,1291]
Brazil
BRAZIL
67
68
2
1
holotype
1913893261
1999-08
PDBFF
Saint Helena, Ascension and Tristan da Cunha
Manaus
-3.1019444
Reservas do Km
21
-60.025
Projeto Dinamica Biologica de Fragmentos Florestais
67
68
IBSP 167213
1
1
Amazonas
paratype
1913893262
2001-10-26
IBSP
Brazil
-3.1019444
Amazonas
21
-60.025
67
68
IBSP 13818
4
1
3
Amazonas
1913893264
1999-08
PDBFF
H. F. Cunha
Saint Helena, Ascension and Tristan da Cunha
-3.1019444
Projeto Dinamica Biologica de Fragmentos Florestais
21
-60.025
Reservas do Km
67
68
IBSP 167215
4
1
3
1913893253
SMNK
Equipe
Saint Helena, Ascension and Tristan da Cunha
-2.9616668
Reserva Florestal Adolpho Ducke
21
-59.92778
67
68
SMNK 8634
1
1