Thymoites cristal, 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 : 189-192

Thymoites cristal new species

Figs. 26–30 , 89

Material examined. Holotype. BRAZIL: Rio Grande do Sul, Cristal , Camaquã river, riparian forest, 31°01’01.7”S; 51°56’42.0”W, 06.VIII.2008, E.N.L. Rodrigues & P.E.S. Rodrigues leg., 1M (MCN 52003). Paratype. BRAZIL: same data as the holotype, 1F (MCN 52004). Paratype. BRAZIL: same data as the holotype, 1F ( IBSP 166158).

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

Diagnosis. The male of Thymoites cristal new species resembles that of Thymoites tabuleiro new species in the shape of the carapace and the palp ( Figs. 26–28 ), but differs in the conductor longer ( Fig. 26 ), trajectory of the sperm duct in the tegulum ( Fig. 26 ) and embolus developed. The female of Thymoites cristal new species is close to T. tabuleiro by the not coiled copulatory duct ( Figs. 29, 30 ), but differs from it in the spermathecae round and copulatory duct short and straight ( Figs. 29, 30 ).

Description. Male holotype (from riparian forest of Camaquã river, MCN 52003): Total length 1.55. Carapace length 0.76, width 0.60. Clypeus height 0.10. Sternum length 0.33, width 0.37. Abdomen length 0.86, width 0.67, height 0.69. Leg formula I/II/IV/III; segment length (I/II/III/IV): femora 0.81/0.67/0.52/0.67; patellae + tibiae 0.86/ 0.63/0.50/0.63; metatarsi + tarsi 0.84/0.73/0.54/0.67; total 2.51/2.03/1.56/1.97. Carapace ( Figs. 27, 28 ) brown, anteriorly dark brown, with a long projection anteriorly, mainly AME, with longitudinal row setae. Eyes with dark borders. PME smaller than the others eyes. Chelicerae and endites brown. Sternum brown, darkened borders. Legs brown. Leg IV with femur and patella dark brown. Metatarsi I and II with ventral macrosetae. Abdomen ( Fig. 27 ) oval, pale yellow, except around of spinnerets dark brown. Spinnerets yellow. Palp with embolus developed, conductor longer ( Fig. 26 ) and sperm duct in the tegulum sinuous ( Fig. 26 ).

Female paratype (same locality as male, MCN 52004): Total length 1.23. Carapace length 0.60, width 0.52. Clypeus height 0.12. Sternum length 0.31, width 0.37. Abdomen length 0.67, width 0.65, height 0.65. Leg formula I/IV/II/III; segment length (I/II/III/IV): femora 0.73/0.54/0.44/0.63; patellae + tibiae 0.63/0.50/0.44/0.60; metatarsi + tarsi 0.77/0.60/0.50/0.65; total 2.13/1.64/1.38/1.88. Carapace brown. Eyes with dark borders. AME smaller than the others eyes. Chelicerae and endites brown. Sternum dark brown. Legs brown. Abdomen longer than wide, dorsum dark brown; venter red-brown, around of spinnerets dark brown. Spinnerets brown. Epigynum with spermathecae rounded and non-sinuous copulatory ducts ( Figs. 29, 30 ).

Distribution. Brazil (Rio Grande do Sul).

Figures

FIGURES 26 – 30. Thymoites cristal n. sp.: 26 – 28, Male: 26, Palp, ventral. 27, Body, dorsal view. 28, Body, lateral view. 29 – 30, Epigynum: 29, Ventral. 30, Dorsal, cleared. Scale bars, 0.25 mm.

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.