Tropicosa baguala, Paredes-Munguía & Brescovit & Teixeira, 2023

Paredes-Munguía, Williams, Brescovit, Antonio D. & Teixeira, Renato A., 2023, Tidying things up: Tropicosa, a new Neotropical wolf spider genus (Araneae: Lycosidae: Lycosinae), Zootaxa 5228 (4), pp. 351-393 : 354-361

Tropicosa baguala sp. nov.

( Figs 1–6 , 30 )

Type material. Male holotype from Parque Estadual Itapu „, Viam„o, Rio Grande do Sul, Brazil, ca. 30°20'42"S 51°01'31"W, 28.v.2004, A.C.K. Ferreira leg. ( MCTP 18040 ). Female paratype, same locality and collector, 29.vii.2003 ( MCTP 18025 ) .

Etymology. The species name came from the southern Brazilian popular interjection “ bagual ”, which is used to nominate something extremely big, plus feminine “a” in concordance to genitive of the genus name.

Other material examined. BRAZIL: Rio Grande do Sul: 1♁, Uruguaiana, Imbaá , ca. 29°43'17"S 56°56'24"W, i.2009, R. Alves leg. ( MCTP 26336 ) ; 1♁, ditto ( MCTP 26337 ); 1 ♁, ditto ( MCTP 26338 ); 1 ♁, ditto ( MCTP 26339 ); 1 ♁, ditto ( MCTP 26355 ); 1♁, Cidreira, Dunas , ca. 30°10'22"S 50°13'01"W, 17.iv.2003, J.A.M. Pinto leg. ( MCTP 33970 ) ; 1♁, Viamão , Parque Estadual Itapuã, ca . 30°20'42"S 51°01'31"W, 08.ix.2003, ( MCTP 18042 ); 1 ♁, ditto ( MCTP 18044 ); 1 ♁, ditto, 12.vi.2004, ( MCTP 18045 ); 2 ♁, ditto, 14.v.2004, ( MCTP 18041 ); 6 ♁, ditto, 15.vii.2003, ( MCTP 18022 ); 3 ♁, ditto ( MCTP 18026 ); 1 ♁ 1♀, ditto ( MCTP 19702 ); 1 ♁, ditto, 21.x.2003, ( MCTP 18036 ); 1 ♁, ditto, 22.ix.2003, ( MCTP 18033 ); 1 ♁, ditto ( MCTP 18034 ); 1 ♁, ditto, 26.vi.2004, ( MCTP 18023 ); 1 ♁, ditto ( MCTP 18032 ) ; 1♀, ditto ( MCTP 19701 ); 1 ♁, ditto, 28.v.2004, ( MCTP 18037 ); 1 ♁, ditto ( MCTP 18039 ); 1 ♁, ditto ( MCTP 18040 ); 1 ♁, ditto ( MCTP 18043 ); 1 ♁, ditto, 29.vii.2003, ( MCTP 18025 ) ; 1♀, ditto ( MCTP 18027 ); 1 ♁, ditto ( MCTP 18029 ); 1 ♁, ditto ( MCTP 18030 ); 1 ♁, ditto ( MCTP 18046 ); 2 ♁, ditto ( MCTP 18038 ); 1 ♁, ditto, 30.iv.2004, ( MCTP 18028 ), all collected by A.C.K. Ferreira.

Diagnosis. Males of Tropicosa baguala sp. nov. are recognizable by the large, spoon-shaped tegular lobe with three marginal ridges ( Fig. 5a, b, g ); the broad, triangular ventral process of median apophysis and by the absence of a subterminal apophysis ( Fig. 5e, h ). Females can be recognized by the short, parallel triangular hoods of the epigynum ( Figs 1a, b , 2c ) and by the wider median septum ( Fig. 1d ).

Description. Male. Holotype (MCTP 18040). Color in ethanol ( Fig. 6a‒g ): Carapace brown, covered by short white bristles except on the longitudinal median band. Longitudinal median band yellow, uniform towards the back ( Fig. 6a ). Ocular area black, covered with dense white bristles; pars cephalica covered by sparse, large white bristles ( Fig. 6b, d ). Chillum membranous, divided by a sclerotized mesal portion. Cheliceral basal condyle large, cheliceral fang with no protrusion. Sternum yellow and longer than wide, covered by short, black, and sparse bristles ( Fig. 6e ). Labium darker at the base, endites and labium clearer in their distal portion. Legs: all segments background yellow except femora, which have irregular stripes ( Fig. 6c ). Opisthosoma all covered by tiny white bristles and sparse black bristles; dorsum olive with a yellow heart mark flanked by two dark, irregular stripes. Chevron marks among the heart mark and spinnerets ( Fig. 6a ). Group of strong, curved, white and black bristles covering the dorsal anterior part, near the prosoma. Venter yellow, sparsely covered by black bristles and black dots; anterior spinnerets thicker and darker than posterior ones; all spinnerets cylindrical ( Fig. 5i ).

Cymbium piriform with a bunch of setae apically ( Fig. 5b ). Subtegulum short and rounded, curved sperm ducts clearly visible. Ventral process of median apophysis triangular and pointed ( Fig. 4d ); median apophysis curved apically ( Figs 4a , 5b ). Terminal apophysis hyaline, curved and with almost the same width along its entire length ( Fig. 4b ). Palea rounded, expanded, and partially sclerotized ( Fig. 5e, h ). Embolus slender, tip hidden in ventral view, visible in apical view ( Fig. 5h ). Tegular lobe broad, with three irregular protuberances ( Fig. 5g ).

Leg formula IV>I>II>III. Spination pattern: femur I p 0-0-2 d 1-1-1 r 2d-0-d1, II p d1-d1 d 1-1-1 r 2d-0-1, III p d1-d1 d 1-1-1 r d1-d1-d1, IV p d1-d1 d 1-1-1 r 0-0-d1; patella I d 1bristle-1bristle, II p 1 d 1bristle-1bristle, IIIIV p 1 d 1bristle-1bristle r 1; tibia I-II p d1-1 d 1bristle-1bristle v 2-2-2ap r 1-1, III-IV p d1-1 d r1-1 r 1-1 v 2-2-2ap; metatarsus I-II p 0-d1-d1 d 1bristle-1 bristle r 0-d1-d1 v 2-2-1ap, III-IV p d1-d1-2 d 1bristle-0 r d1-d1-2 v 2-2-1ap.

Measurements: TL 11.81, CL 5.62, CCW 2.26, CTW 3.80, CCH 2.0, CTH 2.14. Eyes: AME 0.22, ALE 0.19, PME 0.59, PLE 0.52, AME-AME 0.12, AME-ALE 0.12, PME-PME 0.29, POQ length 0.94, POQ posterior width 1.35, POQ anterior width 0.84, AER 1.02, PER 1.26. Opisthosoma length 6.20, width 3.40. Pedipalp segments: 1.94+0.62+0.56+1.09=4.21. Legs: I 4.70 + 2.08 + 3.99 + 3.92 + 2.33 = 17.02, II 4.10 + 1.80 + 3.42 + 3.69 + 2.19 = 15.20, III 3.98 + 1.42 + 2.98 + 4.07 + 1.78 = 14.23, IV 4.98 + 2.03 + 4.27 + 5.90 + 2.43 = 19.61.

Female. Paratype (MCTP 18025). Color in ethanol ( Fig. 3a‒g ): Prosoma and opisthosoma, and chelicerae as in male. Chillum membranous and divided, basal condyle as in male. Sternum longer than wide, yellow, with fuzzy transversal dark stripe; sternum covered by short, black, and sparsely distributed bristles; endites yellow and convergent; labium darker than the endites; both endites and labium yellowish in their distal portion. Legs: All segments as in male, spinules abundant on tarsus IV ( Fig. 3g ). Opisthosoma: dorsum light olive, covered by tiny white and median black bristles ( Fig. 3a ); pattern in dorsal and ventral area as in male, except females have a conical pale band inside a wide yellowish band; spinnerets as in male.

Epigyne ( Figs 1‒2 ): width of transversal septum almost equal to median septum ( Figs 1a , 2d ). Hoods shallow and triangular ( Fig. 1b ). Transversal septum straight, with rounded borders ( Figs 1a , 2a ). The copulatory opening is in the narrowest part between the median and transversal septum ( Fig. 2d ). Internal genitalia: fertilization ducts membranous. Head of spermatheca triangular, with bud-like projections ( Figs 1b , 2b ); stalk of spermatheca straight, base of spermatheca short and bulbous ( Fig. 1b ).

Leg formula IV>I>II>III. Spination pattern: femur I p 0-0-2 d 1-1-1 r d1-d1-0-d1 II p 0-d1-d1 d 1-1-1 r 0-1d-1d, III p d1-1d d 1-1-1 r d1-d1-d1, IV p d1-d1 d 1-1-1 r 0-0-d1; patella I d 1bristle-1 bristle, II p 1 d 1bristle-1 bristle, III p 1 d 1bristle-1ap r 1, IV p 1 d 1 bristle-1bristle r 1; tibia I p 0-1-0 d 1 1bristle1-1bristle v 2-2-2ap, II p d1-1 d 1bristle-1bristle v 2-2-2ap, III-IV p d1-1 d r1-1 r d1-1 v 2-2-2ap; metatarsus I p 0-0-1 d 2bristles-1 bristle-0 v 2-2-1ap r 0-0-1, II p 0-d1-2ap d 2bristles-1bristle-0 v 2-2-1ap r 0-0-1, III p d1-d1-2ap d 1bristle-1bristle r d1-d1-0-2ap v 2-2-1ap, IV p d1-d1-2ap d 1bristle-1bristle r d1-d1-2ap v 2-2-1-2ap.

Measurements: TL 6.72, CL 3.33, CCW 1.44, CTW 2.30, CCH 1.15, CTH 1.02 (2.14). Eyes: AME 0.15, ALE 0.11, PME 0.35, PLE 0.29, AME-AME 0.09, AME-ALE 0.07, PME-PME 0.21, POQ length 0.58, POQ posterior width 0.81, POQ anterior width 0.54, AER 1.07, PER 1.31. Opisthosoma length 3.39, width 2.90. Pedipalp segments: 1.14 + 0.45 + 0.57 + 0.86 = 3.02. Legs: I 2.25 + 1.06 + 1.69 + 1.73 + 1.12 = 7.85, II 2.16 + 1.16 + 1.60 + 1.63 + 1.06 = 7.61, III 2.05 + 1.02 + 1.51 + 1.87 + 1.14 = 7.59, IV 2.48 + 1.10 + 2.19 + 2.99 + 1.40 = 10.16

Variation. Males n = 25, range, mean±s.d.: TL 9.55–12.22, 11.03±0.89; CL 4.87–6.22, 5.61±0.38; CW 3.33– 4.78, 4.06±0.38. Females n = 3, range, mean±s.d.: TL 9.44–12.87, 11.28±1.42; CL 4.89–5.56, 5.22±0.27; CW 3.11–4.00, 3.59±0.37.

Distribution. Southern Brazil and Argentina ( Fig. 30 ).

Figures

FIGURE 1. Tropicosa baguala sp. nov., female genitalia (MCTP 18025), a epigyne, ventral view, b vulva, dorsal view, c epigyne, lateral view, d epigyne, anterior view, e epigyne, posterior view. Scale bars, a–e 1 mm. BLP bud-like projection, FD fertilization duct, H hood, HS head of spermatheca, MS median septum, TS transversal septum.

FIGURE 2. Tropicosa baguala sp. nov., female genitalia (MCTP 18025), a epigyne, ventral view, b vulva, dorsal view, c epigyne, anterior view, d epigyne, posterior view, e epigyne, lateral view, f spinnerets. Scale bars, a–e 0.1 mm, f 0.2 mm. BLP bud-like projection, CD copulatory duct, CO copulatory opening.

FIGURE 3. Tropicosa baguala sp. nov., female (MCTP 18025), a habitus, dorsal view, b frontal, c lateral, d labium and endites, e habitus, ventral view, f tarsus I, ventral, g tarsus IV, ventral. Scale bars, a, c, e 2 mm, b 0.5 mm, d, f, g 0.2 mm.

FIGURE 4. Tropicosa baguala sp. nov., male palp (MCTP 18040), a retrolateral view, b ventral, c prolateral, d copulatory bulb, retrolateral view, e ventral, f prolateral, g apical. Scale bars, a–g 1 mm. CMS cymbium macrosetae, E embolus, MA Median apophysis, P palea, SD sperm duct, ST subtegulum, T tegulum, TA terminal apophysis, TF tegular furrow, TK tegular keel, TLB tegular lobe, VP ventral process.

FIGURE 5. Tropicosa baguala sp. nov., male palp (MCTP 18040), a retrolateral view, b ventral, c prolateral, d copulatory bulb, retrolateral view, e ventral, f prolateral, g basal, h apical, i spinnerets. Scale bars, a–c, i 0.5 mm, d–h 0.2 mm. CMS cymbium macrosetae, E embolus, MA Median apophysis, P palea, pp pars pendula, SD seminal duct, ST subtegulum, T tegulum, TA terminal apophysis, TF tegular furrow, TK tegular keel, TLB tegular lobe, VP ventral process.

FIGURE 6. Tropicosa baguala sp. nov., male (MCTP 18040), a habitus, dorsal, b frontal, c lateral, d pars cephalica, e ventral, f tarsus I, ventral, g tarsus IV, ventral. Scale bars, a–c, i 0.5 mm, a, c, e 2 mm, b 1 mm, d, f, g 0.5 mm.

FIGURE 30. Geographic distribution records of Tropicosa baguala sp. nov. (Red dot). White dot, type locality.