Tullgrenella peniaflorensis 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 : 58-60

Tullgrenella peniaflorensis Galiano, 1970

Figs 4F , 7P , 45A–F , 46A–D , 47A–D , 54A–B

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Tullgrenella peniaflorensis Galiano, 1970: 342 , figs 51, 56 (holotype, female, CHILE, Peñaflor [33°36’23.4”S 70°52’42.3”W], II.1958, M. Toro leg. (MACN-Ar 6242), examined); Richardson, 2010: 45 , figs 127–129.

Diagnosis. Males of Tullgrenella peniaflorensis resemble those of T. selenita mainly by the large, longer tegular membranous process higher than the embolar base ( Fig. 46C , see purple arrow) and the slightly sinuous distal cymbium ( Figs 4F , 46C–D vs 48C–D), but can be distinguished by the longer pointed RTA ( Fig. 46D ) and the inclination of the ventral border of the conductor ( Fig. 46C ). Females resemble those of T. selenita by the posteriorly-opening coupling pocket in a horizontal curly-bracket shape ( Figs 7P vs 7Q, 47C–D vs 49C–D) and the ovoid spermathecae ( Figs 7P vs 7Q), but can be distinguished by the ventral septum and the few loops of antero-medial portion of copulatory ducts ( Figs 7P , 47C–D ).

Description. Male (FNAG36 1455). Total length 5.18. Carapace length 2.30; width 1.92; height 1.34. Cephalic region length 1.53. Ocular area length 1.00; Anterior eyes row 1.66 wide; Posterior eyes row 1.78 wide. Distance ALE–PME 0.19; PME–PLE 0.23. Ocular diameter AME 0.42; ALE 0.23; PME 0.08; PLE 0.19. Clypeus height 0.15. Chelicerae, paturon length 1.00; Fang: 0.38 length. Endites length 0.77; 0.44 wide. Labium length 0.42, 0.42 wide. Sternum length 1.11, 0.85 wide. Abdomen length 2.88; 1.74 wide; height 1.69. Length femur I: 1.84; II: 1.54; III: 1.52; IV: 1.86. Patella I: 1.15; II: 0.90; III: 0.73; IV: 0.86. Tibia I: 1.38; II: 0.85; III: 0.81; IV: 1.27. Metatarsus I: 1.13; II: 0.79; III: 1.08; IV: 1.54. Tarsus I: 0.77; II: 0.58; III: 0.58; IV: 0.61. Formula legs: 1432. Palp, length of femur 0.69, patella 0.24, tibia 0.32, cymbium 0.77. Legs macrosetae, femur I–II: d1–1–1, p2di; III: d1–1–1, p2di, r0–1–2di; IV: d1–1–1, p1di, r1di. Patella I–II: p1di; III–IV: p1di, r2di. Tibia I: v2–1–2, p1–1–1; II: p1–0–1; III: v1– 1–2, p1–1–2, r1–0–2; IV: v1–1–2, p1–1–2, r1–1–2. Metatarsus I–II: v0–2–2; III: d1, v0–2–2, p2di, r2di; IV: d2, v0– 2–2, p2di, r2di. Palp macrosetae, femur: d1–1–1. Carapace as in genus ( Figs 45A–F ). Legs dark. Abdomen reddish, with an anterior stripe of white scales ( Figs 45 –FA) and with two circular white spots on the posterior region near to spinnerets ( Fig. 45A ). Spinnerets as in genus ( Figs 46A–B ). Palp, femur with reduced ventral basal protuberance. Tibial retrolateral apophysis sclerotized, acute, not exceeding the ventral tegulum ( Fig. 46D ). Tegulum oblique to cymbium distal apex, longer than wider, C-shaped, with the short proximal retrolateral lobe of tegulum facing down ( Fig. 46C ). Middle tegulum with central depression, with groove ( Fig. 46C , see red arrow). Embolar base projected dorso-prolaterally, tegular membranous process up to embolar base ( Fig. 46C , see purple arrow). Embolus thin, sclerotized, and slightly curved, not exceeding the cymbium apex ( Figs 46C–D ). Projections accompany the embolus, a pars pendula about half of embolus length, a conductor cradle-shaped, about half of embolus length, dorsal, and prolateral to spermophore ( Fig. 46C ).

Female. Described and illustrated by Galiano (1970: 341, 345, figs 51, 56).

Material examined. CHILE, Región de Coquimbo, Elqui, Cerro Grande, La Serena (29°56’37.8”S 71°13’08.2”W), 16.VIII.2003, L. S. Espinoza leg., 1♀ ( FNAG36 1455) ; Región de Valparaíso, Quilpué [33°02’59.0”S 71°26’28.5”W], 1975, R. Calderón leg., 1♂ ( FNAG36 1078); ditto, no date, A. Olivares leg. 1♂ ( FNAG36 1463); Quilpué-Sector Las Rosas [33°04’01.6”S 71°27’02.8”W], no date, A. Olivares leg. 1♂ ( FNAG36 1464) .

Distribution. Chile [Peñaflor ( Galiano 1970, Richardson 2010), Coquimbo, Región de Valparaíso ( Figs 54A– B )].

Natural history. Found in the North of the Andean region ( Figs 54A–B ). The variation in altitudinal occurrence of this species is 122–388 m a. s. l. ( Figs 54A–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 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 45. Photographs in vivo of T. peniaflorensis Galiano, 1970. A–F male. Photographs by Asiel Olivares.

FIGURE 46. Male of T. peniaflorensis Galiano, 1970 (FNAG36 1463). A habitus, dorsal view. B same, ventral view. C left palp, ventral view, red arrow: tegulum central depression, purple arrow: tegular membranous process. D same, retrolateral view, red arrow: ventral hook between RTA and prolatero-dorsal tibial apophysis. Scale bars: A–B 1 mm, C–D 0.50 mm.

FIGURE 47. Female of T. peniaflorensis Galiano, 1970 (MACN-Ar 6242).A habitus, dorsal view, red arrow: spotted coloration pattern. B same, ventral view. C epigynum, ventral view, red arrow: subseptum. D same, dorsal view. Scale bars: A–B 1 mm, C–D 0.25 mm.

FIGURE 54. Neotropical andAndean regionalization (Morrone 2014) and distributional records for species of the peniaflorensis group. A Neotropical, South America, Brazilian subregion Chacoan subregion, South America Transition Zone and Andean region. B Southern South America, focusing on species occurrence.