Tullgrenella serrana, Galiano, 1970

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 : 41-42

serrana group

Species included. Tullgrenella serrana Galiano, 1970 , T. legalissima Marta & Hagopián sp. nov. (only female), T. aisenbergae Marta sp. nov., T. sciosciae Marta & Bustamante sp. nov., T. galianoae Marta sp. nov. and T. gertschi Galiano, 1981 .

Diagnosis. Males can be recognized by the pointed cymbium, the embolus of left palp originating at about 9 o’clock position, the tegulum with a middle-central C-shaped constriction, and the shorter and sclerotized embolus, usually without globose tegular membranous process ( Figs 4D , 6G–I , 33C , 36C , 40C ). Females have posterior-ventral border between the copulatory opening and posteriorly-opening coupling pocket, and the second loop of copulatory ducts in medial-dorsal epigynum ( Figs 5B–D , 7K–O , 34C , 35C , 37C , 39C , 41C , 42C ).

Distribution. Brazil (Bahia, São Paulo, Minas Gerais, Santa Catarina, and Rio Grande do Sul), Uruguay (Cerro Largo, Durazno, Maldonado, Montevideo, Río Negro, Rocha, Salto, Treinta y Tres) and Argentina (Buenos Aires, Córdoba, Salta and Santiago del Estero) ( Figs 53A–B ).

Natural history. These species are associated with soil, under rocks. This species group is associated with the Chacoan subregion, including formations of Mixed Ombrophilous Forest , and few records in the South American Transitional Zone , but not exceeding it ( Figs 53A–B ). At least in the Chacoan subregion, the species live in sympatry, and only T. gertschi occurs more expansively, toward the Northeast of Brazil ( Figs 53A–B ). The variation in altitudinal occurrence of this species group is 8–1013 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 6. Expanded male left palp of Tullgrenella.A–C T. musica (Mello-Leitão, 1945) (MCN 53371), ventral (A), retrolateral (B) and prolateral (C) view. D–F T. lunata (Mello-Leitão, 1944) (MACN-Ar 42300), ventral view (D), retrolateral (E) and prolateral (F) view. G–I T. serrana Galiano, 1970 (MACN-Ar 6262), ventral (G), retrolateral (H) and prolateral (I) view. Scale bars: 0.50 mm. Black arrow: rotation direction; arrows in other colors refer to the structures with the same annotated colors.

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 33. Male of T. serrana Galiano, 1970 (MCN 46708). A habitus, dorsal view, red arrow: spotted coloration pattern. B same, ventral view. C left palp, ventral view, red arrow: tegulum central depression. D same, retrolateral view, red arrow: hook between RTA and prolatero-dorsal tibial apophysis, red dashed line: prolatero-dorsal tibial apophysis. Scale bars: A–B 1 mm, C–D 0.50 mm.

FIGURE 34. Female of T. serrana Galiano, 1970 (MCTP 12173). 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 35. Female of T. legalissima Marta & Hagopián, sp. nov. (IBSP 118228).A habitus, dorsal view. B same, ventral view. C epigynum, ventral view. D same, dorsal view. Scale bars: A–B 1 mm, C–D 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 39. Female of T. sciosciae Marta & Bustamante, sp. nov. A habitus (IBSP 31133), dorsal view, red arrow: spotted coloration pattern. B same, ventral view, red arrow: subseptum. C epigynum (IBSP 31135), ventral view. D same, dorsal view. Scale bars: A–B 1 mm, C–D 0.25 mm.

FIGURE 40. Male of T. galianoae Marta, sp. nov. (IBSP 118546). A habitus, dorsal view. B same, ventral view. C left palp, ventral view, red arrow: tegulum central depression. D same, retrolateral view, red arrow: hook between RTA and prolaterodorsal tibial apophysis, red dashed line: prolatero-dorsal tibial apophysis. Scale bars: A–B 1 mm, C–D 0.50 mm.

FIGURE 41. Female of T. galianoae Marta, sp. nov. (IBSP 213854). 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 42. Female of T. gerstchi Galiano, 1981 (MACN-Ar 7206).A habitus, dorsal view. B same, ventral view. C epigynum, ventral view. D same, dorsal view. Scale bars: A–B 1 mm, C–D 0.25 mm.

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.