Siremata juruti, Passanha & Brescovit, 2018

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73: 66-68

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-A271-8E20-FF36-4EFAFDAC7844

treatment provided by

Plazi

scientific name

Siremata juruti
status

n. sp.

Siremata juruti   n. sp.

( Figs 43 View FIGURE 43 , 45)

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 MPEG 0 0 8597 GoogleMaps   . Paratypes: ♀, same locality of holotype, 10- 12.VIII.2006, D. F. Candiani & Lo-Man-Hung leg. ( MPEG 008593 View Materials ) GoogleMaps   ; ♂, 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. Dias leg. ( IBSP 16 View Materials 7209) GoogleMaps   ; ♀, 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. Barreiros leg. ( IBSP 167210 View Materials ). GoogleMaps  

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. Guimarães leg. ( IBSP 167212 View Materials ); 8♂ 2♀, 1 immature, 08-15.VIII.2006, D. F. Candiani & N. F. Lo-Man-Hung leg. ( MPEG 0 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-Hung leg. ( MPEG 023324 View Materials ); 1♂, 08-10.VIII.2006, D. F. Candiani & N. F. Lo-Man-Hung leg. ( MPEG 023325 View Materials ); Platô Capiranga, Linha 168E (02°28’22.1”S; 56°12’29.4”W), 1♀, 06-13.II.2007, N. F. Lo-Man-Hung & J. A. P. Barreiros leg. ( MPEG 023313 View Materials ); 1 immature, 15-22.XI.2007, D. F. Candiani & N. F. Lo-Man-Hung leg. ( MPEG 023319 View Materials ); 1♀, 03-10.VI.2007, D. F. Candiani & N. F. Lo-Man-Hung leg. ( MPEG 023320 View Materials ); 1♀, 15- 22.XI.2007, D. F. Candiani & N. F. Lo-Man-Hung leg. ( MPEG 023321 View Materials ); 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 View Materials ); 1♀, 13.II.2007, ( MPEG 023329 View Materials ); 1♀, 06-13.II.2007, ( IBSP 167211 View Materials ); 1♀, 06-13.II.2007 ( MPEG 023338 View Materials ), all collected by N. F. Lo- Man-Hung & J. A. P. Barreiros. GoogleMaps  

Etymology. The species epithet is a noun in apposition taken from the type locality.

Diagnosis. Males of Siremata juruti   n. sp. resemble those of S. valteri   n. sp. in the ventral medial megaspine on tibia I ( Fig. 43D View FIGURE 43 ), but differ in the tegulum having the medial portion dorso-ventrally flattened, slightly twisted and striated ( Fig. 43B –C View FIGURE 43 ). Females differ from those of other species in the lobes of spermathecae largely interspaced and with short ducts ( Fig. 43E –F View FIGURE 43 ).

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 View FIGURE 43 ). 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 v1-3 ap; Legs I: femur p1, patella v1-1, p1, tibia v1 (megaspine), metatarsus v1 b; 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 v1-3 ap, p1-1, r1, tibia v1-1 -3ap, p1-1, r1-1, metatarsus d1-2ap, v1-1 -3ap, p1; IV: femur p1, patella v1-3 ap, 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. 43B View FIGURE 43 ̄C). PLS: basal, medial and apical, 0.38, 0.32, 0.41 long.

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 v1-3 ap, p1, r1, tibia v1-2 -3ap, p1, tarsus v2 b; Legs I: femur p1, r1, patella v1-3 ap, p1-1, r1, tibia v1-1 -1-3ap, p1-1, metatarsus d1-1, v1-1 -1; II: femur p1, r1, patella v1-3 ap, p1-1-1, r1, tibia v1-1 -3ap, p1-1, metatarsus v1-1 -1, p1, r1; III: femur p1, r1, patella v1-3 ap, 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 v1-3 ap, p1-1, r1-1, tibia d1b-1, v1-1 -3ap, p1-1-1, r2-1-1, metatarsus d1-2ap, v2-3 ap, p1-1, r1. Palpal claw with 14 teeth. Spermathecae bilobed, with similar lobes, and distal area globose, no evident glandular area ( Fig. 43E –F View FIGURE 43 ). 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).

MPEG

Museu Paraense Emilio Goeldi

IBSP

Instituto Biologico de Sao Paulo

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Dipluridae

Genus

Siremata