Sparianthina gaita, Rheims, Cristina Anne, 2011

Rheims, Cristina Anne, 2011, New species of Sparianthina Banks, 1929 (Araneae: Sparassidae: Heteropodinae), Zootaxa 3125, pp. 64-68 : 66-68

publication ID

https://doi.org/ 10.5281/zenodo.279408

DOI

https://doi.org/10.5281/zenodo.6195225

persistent identifier

https://treatment.plazi.org/id/1D598787-FFFC-193D-FF10-FC043F70FE8B

treatment provided by

Plazi

scientific name

Sparianthina gaita
status

sp. nov.

Sparianthina gaita sp. nov.

Figs 7–14 View FIGURES 7 – 8 View FIGURES 9 – 14

Type material. Holotype: 3 from Rancho Grande, near Maracay (10 °04' N; 67 ° 32 ' W), Aragua, Venezuela, 1–15 July 1946, Beebee et al. leg. ( AMNH). Paratype: 1 Ƥ, with the same data as holotype ( AMNH).

Etymology. The specific name is a noun in apposition. “ Gaita ” is a style of Venezuelan folk music.

Diagnosis. Sparianthina gaita sp. nov. can be easily distinguished from the remaining Sparianthina species by the male palps with DTA strongly curved retrolaterally ( Figs 9, 11 View FIGURES 9 – 14 ) and RTA dorsally curved at tip ( Fig. 10 View FIGURES 9 – 14 ), female epigynum with median septum with small posterior pocket ( Fig. 12 View FIGURES 9 – 14 ) and vulva with two large lobes, with long fertilization ducts opening on the anterior lobe ( Fig. 13 View FIGURES 9 – 14 ).

Description. Male ( AMNH, holotype): Prosoma orange, slightly darker laterally and at eye area, with brown fovea and thoracic striae. Eye borders black. Chelicerae and pedipalps brownish orange. Legs brownish orange with femora mottled with small pale brown spots. Sternum pale yellow with orange margins. Labium and endites pale orange, distally pale yellow. Opisthosoma yellowish orange with two pairs of conspicuous round muscular pits surrounded by bright orange setae dorsally ( Fig. 7 View FIGURES 7 – 8 ). Total length 8.2. Prosoma: 3.8 long, 4.3 wide. Opisthosoma slightly triangular: 4.1 long, 2.7 wide. Eye diameters: 0.22, 0.24, 0.20, 0.28; interdistances: 0.14, 0.04, 0.30, 0.32, 0.28, 0.24. Legs: I: 23.0 (6.3, 2.3, 6.6, 5.8, 2.0); II: 25.3 (7.2, 2.4, 7.3, 6.3, 2.1); III: 19.4 (5.6, 2.0, 5.3, 5.0, 1.5); IV: 21.3 (5.9, 1.8, 5.6, 6.0, 2.0). Spination: femora I–III p 1 - 1 - 1, d 0-1 - 1, r 1 - 1 - 1; femur IV p 1 - 1 - 1, d 0-1 - 1, r 0-1 - 1; tibiae I–II d 1 - 1 - 1, v 2 - 2 - 2 - 2 -0; tibiae III–IV p 1 - 0-1; d 1 - 0-1; r 1 - 0-1; v 2 - 2 -0; metatarsi I–II p 1 -0-0, r 1 -0-0, v 2 - 2 -0; metatarsus III p 1 - 1 -0, r 1 - 1 -0, v 2 - 2 - 1; metatarsus IV: p 1 - 1-2, r 1 - 1-2, v 2 - 2 -0. Palp: tibia slightly shorter than cymbium with one dorsal and three prolateral spines; VTA triangular and slightly retrolateral; RTA rounded with ventral projection dorsally bent at tip; cymbium scopulae inconspicuous; tegulum retrolaterally swollen; embolus long and conical, with short and stout projection at base; conductor long, hyaline lamina; DTA strongly curved retrolaterally ( Figs 9–11 View FIGURES 9 – 14 ).

Female ( AMNH, paratype): Coloration as in male except prosoma mottled with small brown spots and opisthosoma laterally mottled with white spots ( Fig. 8 View FIGURES 7 – 8 ). Total length 9.3. Prosoma: 4.1 long, 4.1 wide. Opisthosoma: 5.0 long, 3.4 wide. Eye diameters: 0.20, 0.24, 0.20, 0.30; interdistances: 0.14, 0.06, 0.32, 0.34, 0.26, 0.30. Legs: I: 17.9 (5.3, 2.1, 4.9, 4.1, 1.5); II: 19.7 (6.0, 2.3, 5.5, 4.4, 1.5); III: 15.1 (4.6, 1.8, 4.0, 3.5, 1.2); 16.3 (4.9, 1.6, 4.2, 4.1, 1.5). Spination as in male. Epigynum: epigynal plate as long as wide; median septum slightly pentagonal with small posterior pocket ( Fig. 12 View FIGURES 9 – 14 ). Vulva: glandular projection small and rounded, arising close to copulatory opening; duct system with two large, rounded lobes; fertilization ducts very long ( Figs 13–14 View FIGURES 9 – 14 ).

Distribution. Only known from the type locality, Rancho Grande, Venezuela.

AMNH

American Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Sparassidae

Genus

Sparianthina