On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae)
Passanha, Victor
Brescovit, Antonio D.
Zootaxa
2018
2018-08-30
4463
1
1
73
4XQZT
Passanha & Brescovit, 2018
Passanha & Brescovit
2018
[151,335,980,1006]
Arachnida
Dipluridae
Siremata
GBIF
Animalia
Araneae
65
66
Arthropoda
species
juruti
sp. nov.
Types. BRAZIL. ♂ holotype, Acampamento Mutum( 02°36’45.2”S; 56°11’27.5”W), Juruti, Pará, 15.VIII.2006, D.F. Candiani& N.F. Lo-Man-Hung leg. deposited in MPEG0 0 8597. Paratypes: ♀, same locality of holotype, 10- 12.VIII.2006, D. F. Candiani& Lo-Man-Hung leg. ( MPEG 008593); ♂, Vale do Igarapé Mutum( 01°36’44.7”S; 56°11’39.2”W), Platô do Rio Juruti, Juruti, Pará, 6.III.2006, D. R. Santos& S. C. Diasleg. ( IBSP 167209); ♀, Platô Capiranga( 02°28’22.1”S; 56°12’29.4”W), Juruti, Pará, 11.II.2007, N.F. Lo-Man-Hung & J. P. A. Barreirosleg. ( IBSP 167210).
Additional material examined. BRAZIL, Pará: Juruti, Acampamento Mutum( 02°36’45.2”S; 56°11’27.5”W), 1♂, 11-16.IX.2002, A. B. Bonaldo& D. D. Guimarãesleg. ( IBSP 167212); 8♂ 2♀, 1 immature, 08-15.VIII.2006, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG0 0 8596, 0 0 8605, 0 0 8606, 0 0 8614, 0 0 8617, 0 0 8619, 0 0 8620, 0 0 8634, 008635); ( 01°36’44.7”S; 56°11’39.2”W), 1♀, 03-10.VI.2007, D. F. Candiani& N. F. Lo- Man-Hungleg. ( MPEG 023324); 1♂, 08-10.VIII.2006, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG 023325); Platô Capiranga, Linha168E ( 02°28’22.1”S; 56°12’29.4”W), 1♀, 06-13.II.2007, N. F. Lo-Man-Hung & J. A. P. Barreirosleg. ( MPEG 023313); 1 immature, 15-22.XI.2007, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG 023319); 1♀, 03-10.VI.2007, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG 023320); 1♀, 15- 22.XI.2007, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG 023321); Sítio Barroso( 02°27’41.7”S; 56°00’11.6”W), 1♀, 10.VIII.2006, D. F. Candiani& N. F. Lo-Man-Hung leg. ( MPEG 023328); 1♀, 13.II.2007, ( MPEG 023329); 1♀, 06-13.II.2007, ( IBSP 167211); 1♀, 06-13.II.2007( MPEG 023338), all collected by N. F. Lo- Man-Hung& J. A. P. Barreiros.
Etymology. The species epithet is a noun in apposition taken from the typelocality.
Diagnosis. Males of Siremata juruti n. sp.resemble those of S. valteri n. sp.in the ventral medial megaspine on tibia I ( Fig. 43D), but differ in the tegulum having the medial portion dorso-ventrally flattened, slightly twisted and striated ( Fig. 43B–C). Females differ from those of other species in the lobes of spermathecae largely interspaced and with short ducts ( Fig. 43E–F).
Description. Male (IBSP 167212). Color: Carapace in dorsal and ventral views and legs yellowish, abdomen light brown. Total length 2.16. Carapace 1.10 long, 1.00 wide. Abdomen 1.16 long. Fovea 0.13. Clypeus 0.02. Ocular tubercle 0.16 long, 0.22 wide. Eyes: six, posterior row straight ( Fig. 43A). ALE 0.09, PME 0.03, PLE 0.08. Basal segment of chelicerae with 12 prolateral teeth, and 14 smaller mesobasal teeth. Labium 0.13 long, 0.22 wide. Sternum 0.66 wide, 0.75 long. Palp: femur 0.63/ patella 0.32/ tibia 0.54/ tarsus 0.25/ total 1.74; Legs I: femur 0.94/ patella 0.48/ tibia 0.79/ metatarsus 0.54/ tarsus 0.48/ total 3.23; II: 0.79/ 0.44/ 0.57/ 0.48/ 0.44/ total 2.72; III: 0.69/ 0.35/ 0.44/ 0.41/ 0.41/ 2.30; IV: 0.91/ 0.41/ 0.72/ 0.69/ 0.57/ 3.30; Leg formula 4123; Spination: palp: femur d1-1- 1-1-1-1-1, v2-2-2-2-2-2-2-2, patella v1-3ap; Legs I: femur p1, patella v1-1, p1, tibia v1(megaspine), metatarsus v1b; II: patella v1-1, tibia v1-1-3ap, p1-1, metatarsus v1-1; III: femur d1-1-1-1-1, v2-2-2-2, p1, r1, patella v1-3ap, p1-1, r1, tibia v1-1-3ap, p1-1, r1-1, metatarsus d1-2ap, v1-1-3ap, p1; IV: femur p1, patella v1-3ap, p1, r1, tibia d2b- 1-1-1, v1-1-1-1-3ap, p1-1, r1-1-1, metatarsus d1-2ap, v2-2-3ap, p1. Tibia I with megaspine as in fig. 43D. Short palpal tibia, 1.5̄2.5 times length of cymbium, basally dilated, with row of ventral and dorsal elongated setae. Cymbium with 3 apical spines. Palpal bulb with short embolus, 3̄4 times smaller than length of tegulum and strongly curved ( Fig. 43B̄C). PLS: basal, medial and apical, 0.38, 0.32, 0.41 long. FIGURE 43. Siremata juruti n. sp.(male and female, IBSP 167212 and MPEG 8596). AMale eyes, dorsal view; BEmbolus, ventral view; CPalpal bulb, ventral view; DVentral medial megaspine on tibia I (right leg, proventral view); E, FFemale genitalia, dorsal view. Scale bar: A 50µm; B 30µm; C, D, E, F 100µm. Female (IBSP 167211). Color: Carapace in dorsal and ventral views and legs yellowish, abdomen light brown. Total length 2.85. Carapace 1.38 long, 1.07 wide. Abdomen 1.47 long. Fovea 0.09. Clypeus 0.03. Ocular tubercle 0.16 long, 0.22 wide. Eyes: six, posterior row straight. AME absent, ALE 0.08, PME 0.02, PLE 0.06. Basal segment of chelicerae with prolateral 12 teeth, with 13̄15 smaller mesobasal teeth. Labium 0.13 long, 0.22 wide. Sternum 0.63 wide, 0.75 long. Palp: femur 0.66/ patella 0.38/ tibia 0.54/ tarsus 0.51/ total 2.09; Legs I: femur 0.94/ patella 0.54/ tibia 0.78/ metatarsus 0.60/ tarsus 0.51/ total 3.37; II: 0.91/ 0.60/ 0.54/ 0.57/ 0.51/ 3.13; III: 0.75/ 0.38/ 0.51/ 0.57/ 0.48/ 2.69; IV: 1.10/ 0.45/ 0.81/ 0.81/ 0.60/ 3.77. Leg formula 4123. Spination: palp: femur p1, patella v1-3ap, p1, r1, tibia v1-2-3ap, p1, tarsus v2b; Legs I: femur p1, r1, patella v1-3ap, p1-1, r1, tibia v1-1-1-3ap, p1-1, metatarsus d1-1, v1-1-1; II: femur p1, r1, patella v1-3ap, p1-1-1, r1, tibia v1-1-3ap, p1-1, metatarsus v1-1-1, p1, r1; III: femur p1, r1, patella v1-3ap, p1-1-1, r1, tibia v1-1-3ap, p1-1-1, r2-1-1, metatarsus d1-2ap, v2-2-3ap, p1-1; IV femur p1, r1, patella v1-3ap, p1-1, r1-1, tibia d1b-1, v1-1-3ap, p1-1-1, r2-1-1, metatarsus d1-2ap, v2-3ap, p1-1, r1. Palpal claw with 14 teeth. Spermathecae bilobed, with similar lobes, and distal area globose, no evident glandular area ( Fig. 43E–F). PLS: basal, medial and apical, 0.45, 0.32, 0.38 long. Variation. 5 males: total length 2.16–2.63. 5 females: total length 2.60–3.10.
Distribution. Pará, Juruti ( Fig. 45).
1913893263
2006-08-15
MPEG
Juruti & D. F. Candiani
Brazil
-2.6125555
Acampamento Mutum
1
-56.19097
Types.
65
66
2
1
Para
holotype
1913893255
2006-08-10
2006-08-12
2006-08-10
MPEG
D. F. Candiani
Brazil
-2.6125555
Acampamento Mutum
1
-56.19097
Types.
65
66
MPEG 008593
1
1
Para
paratype
1913893259
2006-03-06
IBSP
Juruti & D. R. Santos & S. C. Dias
Brazil
-1.6124167
Plato do Rio Juruti
1
-56.19422
Vale do Igarape Mutum
65
66
IBSP 16
1
1
Para
paratype
1913893254
2007-02-11
IBSP
Juruti & J. P. A. Barreiros
Brazil
-2.4728055
Plato Capiranga
1
-56.208168
65
66
IBSP 167210
1
1
Para
paratype
1913893256
2002-09-11
2007-11-22
2002-09-11
MPEG
D. D. Guimaraes & D. F. Candiani & Man-Hung & Plato Capiranga & Linha & J. A. P. Barreiros & Sitio Barroso & J. A. P. Barreiros.
Brazil
Juruti
-2.4615834
Bonaldo
1
-56.003223
Acampamento Mutum
65
66
IBSP 167212, MPEG 023324, MPEG 023325, MPEG 023313, MPEG 023319, MPEG 023320, MPEG 023321, MPEG 023328, MPEG 023329, IBSP 167211, MPEG 023338
20
10
10
Para