Tullgrenella aisenbergae Marta, 2024

Marta, Kimberly S., Bustamante, Abel A., Hagopián, Damián, Teixeira, Renato A., Brescovit, Antonio D., Valiati, Victor H. & Rodrigues, Everton N. L., 2024, Taxonomic revision of the jumping spider genus Tullgrenella Mello-Leitão, 1941 (Araneae: Salticidae: Freyina), Zootaxa 5411 (1), pp. 1-71 : 47-49

Tullgrenella aisenbergae Marta , sp. nov.

Figs 5B , 7M , 36A–D , 37A–D , 43D , 53A–B

Zoobank. urn:lsid:zoobank.org:act:26A1ABE9–2F4C-491A-807A-3BA607576D6A

Type material. Holotype: ♂ ( IBSP 123130 ), BRAZIL, São Paulo, Itirapina [22°15’26.3”S 47°49’42.3”W], 2001, R. Bertim leg. Paratypes: 1♀ ( IBSP 123126 ), same data as holotype ; 1♀ ( MCN 6348 ), Rio Grande do Sul, Passo Fundo [28°17’11.7”S 52°25’10.7”W], 25.II.1977, A.A. Lise leg.

Other material examined. BRAZIL, São Paulo, Itirapina [22°15’26.3”S 47°49’42.3”W], 2001, R . Bertim leg., 1♀ ( IBSP 123129 ) ; Rio Grande do Sul, Eldorado do Sul [30°06’10.3”S 51°39’00.7”W] , 01–11. V .1996 , G. Carvalho & R. Silva leg., 1♂ ( MCTP 12596 ) ; 01.XI.1996, 1♂ ( MCTP 12575 ) .

Etymology. The name honors the Uruguayan arachnologist Anita Aisenberg, who encouraged women to continue fighting gender bias, and for her leadership in organizing the 22nd International Congress of Arachnology, Montevideo, Uruguay.

Diagnosis. Males of Tullgrenella aisenbergae Marta , sp. nov. resemble those of T. sciosciae Marta & Bustamante , sp. nov. and T. serrana by the pointed cymbium ( Figs 4E vs 5C, 36C–D vs 33C–D, 38C–D), and the embolus of left palp originating at about 9’clock position, but can be distinguished from them by the pointed-down proximal retrolateral lobe of tegulum, longer conductor up to the spermophore, and the longer tegular membranous process, accompanying more than half of embolus length ( Figs 36C–D ). Females of T. aisenbergae Marta , sp. nov. resemble those of T. sciosciae Marta & Bustamante , sp. nov. by the C-shaped copulatory opening facing up in the medial epigynum plate ( Figs 37C vs 39C), but can be distinguished from them by the longer and sclerotized copulatory ducts ( Figs 7M vs 7O, 37C–D) and the posteriorly-opening coupling pocket longer than wide ( Figs 7M , 37C–D ).

Description. Male (IBSP 123130). Total length 5.25. Carapace length 2.50; width 1.83; height 1.00 Cephalic region length 1.25; thoracic region length 1.25. Ocular area length 1.50; Anterior eyes row 1.42 wide; Posterior eyes row 1.42 wide; Distance ALE–PME 0.18; PME–PLE 0.18. Ocular diameter AME 0.42; ALE 0.25; PME 0.06; PLE 0.15. Clypeus height 0.12. Chelicerae, paturon length 0.96; 0.48 wide; Fang 0.39 length. Endites length 0.49; 0.33 wide. Labium length 0.22; 0.29 wide. Sternum length 1.02; 0.53 wide. Abdomen length 1.92; 1.42 wide, height 0.83. Legs, femur length I: 1.66; II: 1.25; III: 1.35; IV: 1.75; patella I: 0.83; II: 0.50; III: 0.50; IV: 0.75; tibia I: 1.41; II: 0.85; III: 0.65; IV: 1.30; metatarsus I: 1.00; II: 0.75; III: 1.15; IV: 1.55; tarsus I: 0.58; II: 0.50; III: 0.55; IV: 0.7. Formula legs: 4132. Palp, length of femur 0.60, patella 0.15, tibia 0.30, cymbium 0.81. Legs macrosetae, femur I: d1–1–1, p2di; II: d1–1–1, p2di, r1; III: d1–1–1, p0–1–2, r0–1–2; IV: d1–1–1, p2di, r2di. Patella I–II: p1; III–IV: p1, r1; Tibia I: v2–2–2, p1–0–1; II: v1–2–2, p1–0–1; III: p1–1–1, r1–1–1, v0–1–2; IV: d2, v0–1–2, p1–1–1, r1–1–1 metatarsus I–II: v0–2–2; III: v0–2–2, p1–1–1, r1–1–1; IV: v0–2–2, p1–1–1di, r1–1–1di. Palp macrosetae, femur: d1–1–1. Carapace as in genus ( Fig. 36A–B ). Legs, femora I–II all brown, III–IV with annuli brown; patella, metatarsus, and tarsus yellow ( Figs 36A–B ). Abdomen as in genus. Palp, femur brown, with reduced ventral basal protuberance. Retrolateral tibial apophysis sclerotized, acute, not exceeding the ventral tegulum ( Fig. 36D ). Tegulum C-shaped, perpendicular to cymbium distal apex, conical pRL facing down ( Fig. 36C ) and with the basal portion with spermophore in one inverted U-shaped loop in the medial-ventral bulb ( Fig. 36C ). Embolar base projected dorsoprolaterally. Embolus thin, sclerotized, and slightly curved at the apex (9 o’clock), not exceeding the cymbium apex ( Fig. 36C ). Two projections on the embolus: a pars pendula, a large conductor with 2/3 of embolus length, dorsal and prolateral to the spermophore ( Figs 36C–D ), tegular membranous process longer and not globose ( Fig. 36C , see purple arrow).

Female (MCN 6248). Total length 8.25. Carapace length 3.00; width 2.42; height 1.67. Cephalic region length 2.17; thoracic region length 0.83. Ocular area length 1.25; Anterior eyes row 1.92 wide; Posterior eyes row 1.75 wide; Distance ALE–PME 0.39; PME–PLE 0.35. Ocular diameter AME 0.50; ALE 0.33; PME 0.08; PLE 0.20. Clypeus height 0.40. Chelicerae, paturon length 1.15; 0.50 wide; Fang 0.45 length. Endites length 0.60; 0.50 wide. Labium length 0.50; 0.50 wide. Sternum length 1.25; 0.80 wide.Abdomen length 5.42; 3.08 wide, height 3.33. Legs, femur length I: 1.81; II: 1.56; III: 2.00; IV: 2.18; patella I: 1.18; II: 0.93; III: 0.93; IV: 1.00; tibia I: 1.18; II: 0.93; III: 1.06; IV: 1.75; metatarsus I: 0.93; II: 0.81; III: 1.25; IV: 1.87; tarsus I: 0.62; II: 0.62; III: 0.62; IV: 0.62. Formula legs: 4312. Palp, length of femur 0.93, patella 0.31, tibia 0.37, tarsus 0.50. Legs macrosetae, femur I–II: d1–1–1, p2di; III–IV: d1–1–1, p1di, r2di. Patella I–II: 0; III–IV: p1, r1. Tibia I: v2–2–2, p1subdi; II: v2–2; III: p2, r2, v0–1–2; IV: d2, v0–1–1, p1–1–1, r1–1–1. Metatarsus I–II: v0–2–2; III: v0–1–2, p2di, r2di, d2; IV: v0–2–2, p1–1–1di, r2di, 2d. Carapace as in genus ( Figs 37A–B ). Legs lighter brown and yellow. Palp yellow with dark spots on dorsum of sclerites. Abdomen: dorsum lighter brown, with yellow spots medially, and white spots proximal to posterior abdomen, venter yellow ( Figs 37A–B ). Spinnerets as in genus ( Figs 37A–B ). Epigynum: copulatory opening into a fillet, posterior-medial ( Figs 5B , 7M , 37C ). Copulatory ducts arranged in one monoplanar spiral, C-shaped, with one medial-dorsal loop and anteriorly arranged in the spermathecae ( Figs 7M , 37C–D ). Spermathecae circular, with the base of fertilization ducts placed on anterior/dorsal surface, separated by longer posteriorly-opening coupling pocket ( Figs 7M , 36C ). Fertilization ducts extended anteriorly to the sides ( Figs 7M , 37D ).

Distribution. Brazil (São Paulo and Rio Grande do Sul) ( Figs 53A–B ).

Natural history. Found in the Chacoan subregion ( Figs 53A–B ). The variation in altitudinal occurrence of this species is 97–735 m a. s. l. ( Figs 53A–B ).

Figures

FIGURE 4. Scanning electronic microscopy of male left palp, ventral view.A T. musica (Mello-Leitão, 1945) (MCN 53370). B T. quadripunctata (Mello-Leitão, 1944) (MCTP 16531). C T. yungae Galiano, 1970 (MCN 44133). D T. serrana Galiano, 1970 (MCTP 31126). E T. aisenbergae Marta, sp. nov. (IBSP 118477). F T. peniaflorensis Galiano, 1970 (FNAG36 1464). Scale bars: 0.50 mm. Colored homology: purple and purple arrow (tegular membranous process), blue (embolar base), green (conductor), magenta (tegulum), orange (embolus), red (pars pendula).

FIGURE 5. Scanning electronic microscopy of epigynum, ventral view. A T. musica (MCN 55519), white arrow: septum. B T. aisenbergae Marta, sp. nov. (MCTP 12575), white arrow: septum. C T. sciosciae Marta & Bustamante, sp. nov. (MCTP 31135), white arrow: septum. D T. galianoae Marta, sp. nov. (MCTP 39711); red dashed line: window, red arrow: fundus membranous groove of the window. Scale bars: 0.25 mm.

FIGURE 7. Illustrations of female epigynum of Tullgrenella, dorsal view. A–E morenensis group: A T. morenensis (Tullgren, 1905) (MCN 19940), B T. guayapae Galiano, 1970 (MCN 55520), C T. brescoviti Estol, Marta & Rodrigues, 2020 (MCN 24104), D T. musica (Mello-Leitão,1945) (MCN 53372), E T. corrugata Galiano, 1981 (MACN-Ar 7206). F–H quadripunctata group: F T. quadripunctata (Mello-Leitão, 1944) (MCTP 2239), G T. nadjae Estol, Marta & Rodrigues, 2020 (MCN 56814), H T. lunata (Mello-Leitão, 1944) (MACN-Ar 6214). I–J melanica group: I T. melanica (Mello-Leitão, 1941) (MACN-Ar 6244), J T. yungae Galiano, 1970 (MCTP 39713). K–O serrana group: K T. serrana Galiano, 1970 (MCTP 12173), L T. legalissima Marta & Hagopián, sp. nov. (IBSP 118228), M T. aisenbergae Marta, sp. nov. (IBSP 123129), N T. gertschi Galiano, 1981 (MACN-Ar 7206), O T. sciosciae Marta & Bustamante, sp. nov. (MCTP 31135). P–Q peniaflorensis group: P T. peniaflorensis Galiano, 1970 (MACN-Ar 6242), Q T. selenita Galiano, 1970 (FNAC 36). Scale bars: 0.25 mm.

FIGURE 36. Male of T. aisenbergae Marta sp. nov. (MCTP 12575). A habitus, dorsal view, red arrow: spotted coloration pattern. B same, ventral view. C left palp, purple arrow: tegular membranous process, ventral view. D same, retrolateral view, red arrow: hook between RTA and prolatero-dorsal tibial apophysis. Scale bars: A–B 1 mm, C–D 0.50 mm.

FIGURE 37. Female of T. aisenbergae Marta sp. nov. (IBSP 123129). A habitus, dorsal view, red arrow: spotted coloration pattern. B same, ventral view. C epigynum, ventral view. D same, dorsal view. Scale bars: A–B 1 mm, C–D 0.25 mm.

FIGURE 43. Scanning electronic microscopy of male palp, ventral view. A zoom of RTA of T. quadripunctata (Mello-Leitão, 1944) (MCTP 16531), white arrow: hook between RTA and prolatero-dorsal tibial apophysis, red arrow: lyriform organ. B zoom of RTA of T. serrana Galiano, 1970 (MCTP 31126), white arrow: hook between RTA and prolatero-dorsal tibial apophysis. C femur ventral projection of T. yungae Galiano, 1970 (MCN 44133), white arrow: projection. D femur ventral projection of T. aisenbergae Marta sp. nov. (IBSP 118477), white arrow: projection.

FIGURE 53. Neotropical andAndean regionalization (Morrone 2014) and distributional records for species of the serrana group. A Neotropical, South America, Brazilian subregion Chacoan subregion, South America Transition Zone and Andean region. B Southern South America, focusing on species occurrence. C habitat inference, URUGUAY: Sierra de Ríos, photographed by collector Damián Hagopián.