Tullgrenella brescoviti, Estol & Marta & Rodrigues, 2020

Estol, Narelle, Marta, Kimberly S. & Rodrigues, Everton Nei Lopes, 2020, On the Neotropical spider genus Tullgrenella Mello-Leitão, 1941: two new species complementary descriptions and new records (Araneae: Salticidae), Zootaxa 4780 (2), pp. 356-366 : 358-362

Tullgrenella brescoviti sp. nov.

Figs 7–12 , 17, 18 , 23–25 , 28, 29 , 32

urn:lsid:zoobank.org:act:23078422-C889-4673-AF96-A79A07E39BB8

Type material. Holotype: male, La Paz (Laguna Viscachani, 16º31’S, 68º12’W, 3600 m asl, collected in Puna), Bolivia, 05.VIII.1993, A.D. Brescovit leg. ( MCN 23871) . Paratype: female, La Paz ( Valle del Zongo , 16º31’S, 68º12’W, 3600 m asl), Bolivia, 05.VIII.1993, H. Höfer leg. ( MCN 24104) .

Etymology. The specific name honors the arachnologist Antonio Domingos Brescovit (IBSP), collector of the type specimen.

Diagnosis. Males of T. brescoviti sp. nov. species resemble those of T. guayapae Galiano, 1970 (see Galiano 1970, figs 10–13) and T. morenensis (Tullgren, 1905) (see Galiano 1970, figs 1–2) by the shape of embolus base, oval and developed, and cymbium pointed, sickle-shaped ( Figs 7, 10 , 23, 25 ), but differ from T. guayapae by the larger TmA, by the shape of RTA, less excavated ( Figs 8 , 25 ) and distal embolus not exceeding the length of the cymbium apex ( Figs 7, 9 , 23 ), and differ from T. morenensis by the shape of tegulum more oblique, TDD wider than in T. morenensis ( Fig. 7 ) and the shape of the RTA, more acute in T. brescoviti ( Fig. 8 ). Females of T. brescoviti sp. nov. resemble those of T. didelphis (Simon, 1886) (see Galiano 1963, fig. 11 and Galiano 1970, fig. 58) and those of T. morenensis (see Galiano 1970, fig. 57) by the shape of copulatory ducts, long with the first loop oval and by the presence of posteriorly-opening coupling pocket, but differ from both species by the smaller spermathecae, distant from each other ( Figs 11, 12 , 28, 29 ).

Description. Male (holotype). Total length: 6.13. Carapace: length 3.22, width 2.39, height 1.35. Sternum: length 0.80, width 1.24. Clypeus height 0.18. Ocular area (ALE–PLE) 1.05. Anterior eye row 1.57 wide, posterior 1.55 wide. Diameter AME 0.31, ALE 0.21, PME 0.10, PLE 0.16. Abdomen: length 3.01, width 2.13, height 1.97. Leg formula: 4123. Length of femur I: 1.82; II: 1.43; III: 1.53; IV: 2.15; patella + tibia I: 2.49; II: 1.95; III: 1.43; IV: 2.09; metatarsus + tarsus I: 1.76; II: 1.42; III: 1.82; IV: 2.39. Palp: femur 0.80, patella 0.39, tibia 0.33, cymbium 0.85. Carapace trapezoidal ( Fig. 17 ), dark brown with two longitudinal white bands. Chelicerae dark brown, with two prolateral teeth, with setae between teeth and one retrolateral tooth. Labium brown. Endites subtriangular, pale brown with lighter apices. Sternum dark brown, oval. Legs brown ( Fig. 17 ), except tarsi and metatarsi pale brown. Femur I and II more robust than others. Abdomen oval ( Fig. 17 ), brown, dorsum with dark bands, venter and spinnerets dark brown. Leg macroseta I: femur 3 dorsal (1-1-1), 2 prolateral; patella 1 prolateral; tibia 2 dorsal, 3 prolateral, 3 ventral; metatarsus 6 ventral (2-2-2), 1 prolateral; tarsus 4 ventral (2-2); II: femur 3 dorsal (1-1-1), 2 prolateral, 1 retrolateral; tibia 3 ventral (1-1-1), 2 prolateral; metatarsus 4 (2-2) ventral, 2 prolateral; III: femur 3 dorsal (1-1-1), 3 prolateral (1-2), 3 retrolateral (1-2); patella 3 prolateral (1-1-1), 3 retrolateral (1-1-1); tibia 1 dorsal, 2 ventral; metatarsus 2 dorsal (1-1), 2 prolateral (1-1), 2 retrolateral (1-1), 4 ventral (2-2); IV: femur 3 dorsal (1-1-1), 1 prolateral, 2 retrolateral; patella 1 prolateral, 1 retrolateral; tibia 1 dorsal, 3 retrolateral (1-1-1), 3 prolateral (1- 1-1); metatarsus 6 dorsal (2-2-2), 2 ventral (1-1), 1 prolateral, 1 retrolateral. The embolus distally does not exceed the length of the cymbium apex ( Figs 7, 9 , 23 ). The embolus base is oval and developed. The cymbium is pointed, sickle-shaped ( Figs 7, 10 , 23, 25 ). The retrolateral tibial apophysis is excavated and pointed in the apex ( Figs 8 , 25 ). The tegulum is oblique, with a small projection at the retrolateral portion towards the RTA ( Figs 8 , 25 ). The conductor is membranous and TmA is developed ( Figs 7 , 23 ).

Female (paratype): Total length: 6.44. Carapace: length 2.91, width 2.28, height 1.50. Sternum: length 1.35, width 0.91. Clypeus height 0.23. Ocular area (ALE–PLE) 1.13. Anterior eye row 1.74 wide, posterior 1.89 wide. Diameter AME 0.25, ALE 0.18, PME 0.08, PLE 0.16. Abdomen: length 4.05, width 2.44, height 1.97. Leg formula: 4312. Length of femur I: 1.56; II: 1.43; III: 1.69; IV: 1.95; patella + tibia I: 1.82; II: 1.69; III: 1.48; IV: 2.23; metatarsus + tarsus I: 0.93; II: 1.09; III: 1.56; IV: 2.15. Palp: femur 0.52, patella 0.39, tibia 0.28, tarsus 0.65. Carapace ( Fig. 18 ), dark brown with white seta on posterior area; ocular area darkened. Chelicerae red-brown, with two prolateral teeth, with setae between teeth and one retrolateral tooth. Labium brown. Endites brown with lighter apices. Sternum dark brown, oval. Legs brown ( Fig. 18 ), except tarsi and metatarsi pale brown. Coxae pale brown. Abdomen oval ( Fig. 18 ), brown, dorsum with dark bands, venter brown. Spinnerets pale brown. Leg macroseta I: femur 2 dorsal (1-1), 2 prolateral; tibia 6 ventral (2-2-2), 1 prolateral; metatarsus 4 ventral (2-2); II: femur 2 dorsal (1-1), 2 prolateral; tibia 4 ventral (2-2); metatarsus 4 ventral (2-2); III: femur 2 dorsal (1-1), 2 prolateral; patella 1 prolateral, 1 retrolateral; tibia 2 ventral, 3 prolateral (1-1-1), 3 retrolateral (1-1-1); metatarsus 4 dorsal (2-2), 4 ventral (2-2), 2 prolateral, 2 retrolateral; IV: femur 1 dorsal; patella 1 prolateral, 1 retrolateral; tibia 3 prolateral (1-1-1), 3 retrolateral (1-1-1), 4 ventral (2-2); metatarsus 6 dorsal (2-2-2), 3 prolateral, 3 ventral. The spermathecae are oval, small, distant from each other ( Figs 11, 12 , 28, 29 ). The fertilization ducts are posteriorly and membranous ( Figs 12 , 29 ). The copulatory ducts are long with the first loop oval. The posteriorly-opening coupling pocket present ( Figs 11, 12 ).

Distribution. Known only from the type locality in Bolivia ( Fig. 32 ).

Natural history. The species was collected in Puna grassland ecoregion, above 3600 m. Puna is characterized by the montane grasslands and shrublands biome, is found in the central Andes Mountains of South America.

Figures

FIGURE 32. New distributional records of species of Tullgrenella herein treated.

FIGURES 7–12. Tullgrenella brescoviti sp. nov.: 7–10, left male palp: 7, ventral view; 8, retrolateral view; 9, prolateral view; 10, dorsal view. 11–12, epigyne: 11, ventral view; 12, dorsal view, cleared. Scale bars: 0.25 mm. Abbreviations: C, conductor; CD, copulatory ducts; CO, copulatory openings; Cy, cymbium; E, embolus; EB, embolus base; FD, fertilization ducts; pCP, posteriorly-opening coupling pocket; RTA, retrolateral tibial apophysis; S, spermatheca; T, tegulum; TDD, tegulum distal division; Ti, tibia; TmA, terminal apophysis.

FIGURES 15–19. Body, dorsal view: 15–16, Tullgrenella nadjae sp. nov.: 15, male; 16, female; 17–18, Tullgrenella brescoviti sp. nov.: 17, male; 18, female; 19, Tullgrenella guayapae Galiano, 1970: female. Scale bars: 1 mm.

FIGURES 20–25. Right male palps: 20–22, Tullgrenella nadjae sp. nov.: 20, ventral view; 21, prolateral view; 22, retrolateral view. 23–25, Tullgrenella brescoviti sp. nov.: 23, ventral view; 24, prolateral view, 25; retrolateral view. Scale bars: 0.5 mm. Abbreviations: Cy, cymbium; E, embolus; EB, embolus base; RTA, retrolateral tibial apophysis; T, tegulum.

FIGURES 26–31. Female epigyne, cleared: 26–27, Tullgrenella nadjae sp. nov.: 26, ventral view; 27, dorsal view. 28–29, Tullgrenella brescoviti sp. nov.: 28, ventral view; 29, dorsal view. 30–31, Tullgrenella guayapae Galiano, 1970: 30, ventral view; 31, dorsal view. Scale bars: 0.25 mm.