Tullgrenella nadjae, 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 : 357-358

Tullgrenella nadjae sp. nov.

Figs 1–6 , 15, 16 , 20–22 , 26, 27 , 32

urn:lsid:zoobank.org:act:4739F841-5F24-4E37-9E1B-11100A947CB0

Type material. Holotype: male, Huatajata (Titicaca Lakeshore, 16º12’S, 68º41’W, 3850 m asl), La Paz, Bolivia, 8.VIII.1993, A.D. Brescovit & H. Höfer leg. ( MCN 23782) . Paratype: female, same data as the holotype ( MCN 56814) .

Etymology. The specific name is a matronym honoring the first author’s mother, Nadja Estol (in memoriam).

Diagnosis. Males of T. nadjae sp. nov. resemble those of T. guayapae Galiano, 1970 (see Galiano 1970, figs 10–13) and T. lunata (Mello-Leitão, 1944) (see Galiano 1970, figs 45–47) by the shape of cymbium, pointed, sickle-shaped ( Figs 1, 4 , 20, 22 ), and resemble those of T. guayapae by the distal embolus exceeding the length of the cymbium apex ( Figs 1, 3 , 20, 21, 22 ), but differ from both species by the shape of secondary conductor (TmA), partly convoluted ( Figs 1 , 20 ); males differ from those of T. guayapae by the retrolateral tibial apophysis long and sinuose ( Figs 2, 4 , 22 ) and from those of T. lunata by the tegulum, which is more oblique in T. nadjae sp. nov. ( Figs 1 , 20 ). Females of T. nadjae sp. nov. resemble those of T. quadripunctata (Mello-Leitão, 1944) (see Galiano 1981, figs 49–50) and T. corrugata Galiano, 1981 (see Galiano 1981, figs 6-7) by the shape of epigynum, as long as wide ( Figs 5, 6 , 26 ), and the copulatory opening anteriorly placed ( Fig. 5 ), and resemble those of T. quadripunctata by the presence of posteriorly-opening coupling pocket ( Figs 5, 6 ). However, they differ from those of T. quadripunctata by the loop of the copulatory ducts, above the spermathecae, distant from each other ( Figs 6 , 27 ), and apparently smaller spermathecae than in T. quadripunctata (see Galiano 1981, fig. 49), and differ from those of T. corrugata by the copulatory ducts less separated from each other, in ventral view ( Fig. 6 ), and the longer loop above the spermathecae ( Figs 6 , 27 ).

Description. Male (holotype): Total length: 4.30. Carapace: length 2.18, width 1.71, height 1.40. Sternum: length 0.98, width 0.65. Clypeus height 0.26. Ocular area (ALE–PLE) 0.92. Anterior eye row 1.42 wide, posterior 1.55 wide. Diameter AME 0.35, ALE 0.21, PME 0.08, PLE 0.18. Abdomen: length 2.18, width 1.61, height 1.35. Leg formula: 4132. Length of femur I: 1.40; II: 1.32; III: 1.35; IV: 1.56; patella + tibia I: 2.02; II: 1.40; III: 1.39; IV: 1.95; metatarsus + tarsus I: 1.45; II: 1.11; III: 1.22; IV: 1.84. Palp: femur 0.88, patella 0.39, tibia 0.26, cymbium 0.91. Carapace dark brown ( Fig. 15 ), trapezoidal, with white scales, except on posterior area. Chelicerae dark brown, with two prolateral teeth and one retrolateral tooth. Labium dark brown, squared. Endites dark with lighter apices. Sternum dark brown, oval. Legs dark brown ( Fig. 15 ), except tarsus I and II, brown, and coxae II–IV with lighter apices. Femur I–IV covered with white scales. Femur I and II more robust than others. Abdomen oval ( Fig. 15 ), dark brown, with white scales anteriorly; venter and spinnerets brown. Leg macroseta I: femur 3 dorsal (1-1-1); tibia 3 ventral (1-1-1); 1 prolateral distal; metatarsus 4 (2-2); II: femur 3 dorsal (1-1-1), 2 prolateral distal; tibia 3 ventral (1-1-1), 1 prolateral distal; metatarsus 4 (2-2) ventral, 1 prolateral; III: femur 1 dorsal, 3 prolateral; patella 1 prolateral, 1 retrolateral, 2 ventral distal; IV: femur 3 dorsal, 2 retrolateral, 1 prolateral; patella 1 retrolateral, 1 prolateral; metatarsus 3 dorsal, 3 ventral, 2 prolateral, 2 retrolateral. The embolus is long and filiform ( Figs 1, 3 , 20 ), slightly surpassing the distal portion of the cymbium ( Figs 1, 3, 4 ). The TmA is modified in a projection retrolateral to the embolus ( Figs 1 , 20 ), forming a curved lobe (sinuous), and can be considered a secondary conductor. The conductor is membranous, near embolus base. The tegulum is oblique, with a small projection at the retrolateral portion towards the RTA. The RTA is developed, sclerotized, with hooked tip ( Fig. 2 ).

Female (paratype): Total length: 6.5. Carapace: length 2.75, width 2.13, height 1.24. Sternum: length 1.09, width 0.88. Clypeus height 0.13. Ocular area (ALE–PLE) 0.90. Anterior eye row 1.57 wide, posterior 1.61 wide. Diameter AME 0.29, ALE 0.21, PME 0.08, PLE 0.16. Abdomen: length 4.05, width 2.91, height 3.01. Leg formula: 4312. Length of femur I: 1.32; II: 1.19; III: 1.19; IV: 1.58; patella + tibia I: 1.69; II: 1.30; III: 1.69; IV: 2.18; metatarsus + tarsus I: 1.11; II: 0.96; III: 1.40; IV: 1.63. Palp: femur 0.62, patella 0.33, tibia 0.39, tarsus 0.57. Carapace ( Fig. 16 ) as in male. Chelicerae brown, with two prolateral teeth, and one retrolateral tooth. Labium, endites and sternum as in male. Legs as in male. Abdomen oval ( Fig. 16 ), brown, with white setae anteriorly, venter brown and spinnerets pale brown. Leg macroseta I: femur 3 dorsal (1-1-1), 1 prolateral; tibia 3 ventral (1-1-1), 1 prolateral distal; metatarsus 4 (2-2) ventral; II: femur 1 dorsal; tibia 3 ventral (1-1-1), 1 prolateral distal; metatarsus 4 (2-2) ventral; III: femur 3 dorsal (1-1-1), 2 retrolateral; metatarsus 3 dorsal, 2 prolateral, 2 retrolateral, 3 ventral; IV: femur 1 dorsal; tibia 2 ventral, 2 retrolateral, 1 prolateral; metatarsus 3 dorsal, 4 ventral, 2 prolateral, 2 retrolateral. The epigynal plate is longer than wide ( Figs 5, 6 , 26 ) and the copulatory opening are anteriorly placed ( Fig. 5 ). Posteriorly-opening coupling pocket present ( Figs 5, 6 ). The spermathecae are smaller, oval, near from each other ( Figs 6 , 27 ). Copulatory ducts near from each other, in ventral view ( Fig. 6 ), and forming a loop above the spermathecae ( Figs 6 , 27 ).

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

Natural history. The species was collected above 3800 m asl.

Figures

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

FIGURES 1–6. Tullgrenella nadjae sp. nov.: 1–4, left male palp: 1, ventral view; 2, retrolateral view; 3, prolateral view; 4, dorsal view. 5–6, epigyne: 5, ventral view; 6, 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.