Thymoites piratini, Rodrigues, Everton Nei Lopes & Brescovit, Antonio D., 2015

Rodrigues, Everton Nei Lopes & Brescovit, Antonio D., 2015, On the spider genus Thymoites in the Neotropical Region (Araneae, Theridiidae): nine new species, complementary descriptions and new records, Zootaxa 3972 (2), pp. 181-207 : 192-195

Thymoites piratini new species

Figs. 36–40 , 61–72 , 87

Material examined. Holotype. BRAZIL: Rio Grande do Sul, Piratini , Fazenda Santa Izabel, 31°56’50.95”S, 52°88’20.48”W, 14.II.2008, J.L.O. Rosado leg., 1M (MCN 52007). Paratype. BRAZIL: same data as the holotype, 2F (MCN 52009). Paratype. BRAZIL: Rio Grande do Sul, Capão do Leão, Fazenda Ouro Verde, 31°57’55.40”S, 52°51’42.73”W, 15.I.2008, J.L.O. Rosado leg., 1M (MCN 52008). Paratypes. BRAZIL: same data as the holotype, 2F ( MCTP 38135). Paratype. BRAZIL: Rio Grande do Sul, Capão do Leão, Fazenda Ouro Verde, 31°57’55.40”S, 52°51’42.73”W, 15.I.2008, J.L.O. Rosado leg., 1M ( MCTP 38136). Paratypes. BRAZIL: same data as the holotype, 2F ( IBSP 166161). Paratype. BRAZIL: Rio Grande do Sul, Capão do Leão, Fazenda Ouro Verde, 31°57’55.40”S, 52°51’42.73”W, 15.I.2008, J.L.O. Rosado leg., 1M ( IBSP 166162).. Paratype. BRAZIL: Rio Grande do Sul, Capão do Leão, Fazenda Ouro Verde, 31°57’55.40”S, 52°51’42.73”W, 24.I.2008, J.L.O. Rosado leg., 1M (MCN 46739); Paratypes. BRAZIL: Rio Grande do Sul, Piratini , Fazenda Santa Maria, 31°56’58.01”S, 53°17’06.13”W, 21.II.2008, J.L.O. Rosado leg., 4F (MCN 46750, 46753, 46755, 46778).

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. The male of Thymoites piratini new species differs from those of the other species by the pointed distal area of the carapace ( Figs. 37, 38 , 61–66 ) and the palp with cymbium with pointed apex ( Fig. 36 , 68–70 ).The female of Thymoites piratini new species is close to Thymoites ilhabela new species, but differs by the shorter fertilization ducts ( Fig. 40 ) and the shape of copulatory ducts ( Figs. 39, 40 ).

Description. Male holotype (from Fazenda Santa Izabel, MCN 52007): Total length 1.28. Carapace length 0.77, width 0.52. Clypeus height 0.25. Sternum length 0.31, width 0.33. Abdomen length 0.56, width 0.50, height 0.52. Leg formula I/IV/II/III; segment length (I/II/III/IV): femora 0.54/0.44/0.37/0.50; patellae + tibiae 0.60/0.44/ 0.37/0.52; metatarsi + tarsi 0.69/0.60/0.50/0.58; total 1.83/1.48/1.24/1.60. Carapace ( Figs. 61 ) red brown, anteriorly dark brown ( Fig. 37 ), with a long projection anteriorly and a tubercle between median eyes ( Figs. 37, 38 , 61–66 ). Eyes ( Figs. 61–66 ) with dark borders. AME and PME smaller than the other eyes. Endites and chelicerae red brown. Sternum red brown, darkened borders. Legs ( Fig. 67 ) red brown. Abdomen ( Fig. 37 ) oval, pale yellow, posteriorly dark brown; venter dark brown. Spinnerets yellow brown. Palp with cymbium pointed ( Figs 68–70 ), conductor longer and thin ( Fig. 36 ).

Female paratype (same locality as male, MCN 52009): Total length 1.38. Carapace length 0.65, width 0.56. Clypeus height 0.16. Sternum length 0.35, width 0.37. Abdomen length 0.84, width 0.77, height 0.79. Leg formula I/IV/II/III; segment length (I/II/III/IV): femora 0.54/0.44/0.37/0.54; patellae + tibiae 0.56/0.44/0.37/0.52; metatarsi + tarsi 0.67/0.54/0.52/0.60; total 1.77/1.42/1.26/1.66. Carapace red brown, anteriorly dark brown. Eyes as in male. Endites and chelicerae dark red brown. Sternum red brown, darkened borders. Legs red brown. Abdomen pale yellow, posteriorly dark brown; venter dark brown. Spinnerets yellow brown. Epigynum ( Figs. 71, 72 ) with elongated spermathecae, fertilization ducts shorter and copulatory ducts sinuous ( Figs. 39, 40 ).

Distribution. Brazil (Rio Grande do Sul).

Figures

FIGURES 36 – 40. Thymoites piratini n. sp.: 36 – 38, Male: 36, Palp, ventral. 37, Body, dorsal view. 38, Body, lateral view. 39 – 40, Epigynum: 39, Ventral. 40, Dorsal, cleared. Scale bars, 0.25 mm.

FIGURES 61 – 66. Thymoites piratini n. sp.: 61 – 66, Male carapace: 61, Dorsal. 62, Dorsal, detail. 63, Dorsal, detail of eyes. 64, Lateral, detail of projection. 65, Lateral, detail of eyes. 66, Apical view.

FIGURES 67 – 72. Thymoites piratini n. sp.: 67 – 70, Male: 67, Leg I, detail of ventral macrosetae. 68 – 70, Male palp: 68, Ventral. 69, Ventral, anterior detail. 70, Anterior. 71 – 72, Epigynum: 71, Ventral view. 72, Posterior.

FIGURES 86 – 89. Records of the Thymoites species. 86, Thymoites murici n. sp., Thymoites ilhabela n. sp., Thymoites tabuleiro n. sp., Thymoites puer (Mello-Leitão, 1941). 87, Thymoites piratini n. sp., Thymoites pinheiral n. sp., Thymoites melloleitaoni (Bristowe, 1938), Thymoites piarco (Levi, 1959). 88, Thymoites taiobeiras n. sp., Thymoites camaqua n. sp., Thymoites bocaina n. sp., Thymoites ilvan Levi, 1964, Thymoites struthio (Simon, 1895). 89, Thymoites cristal n. sp., Thymoites iritus Levi, 1964, Thymoites anicus Levi, 1964.