Tekellina picurrucha Rodrigues & Estol, 2024

Estol, Narelle, Valiati, Victor Hugo, Brescovit, Antonio D. & Rodrigues, Everton Nei Lopes, 2024, On the Neotropical species of the spider genus Tekellina Levi, 1957 (Arachnida: Araneae: Synotaxidae), European Journal of Taxonomy 943, pp. 154-178 : 167-170

Tekellina picurrucha Rodrigues & Estol sp. nov.

urn:lsid:zoobank.org:act:6E100DED-F2C5-4CDC-8002-F2C1C1C99146

Figs 6A–C , 9A–C , 10

Diagnosis

Males of Tekellina picurrucha Rodrigues & Estol sp. nov. resemble those of T. helixicis (see Gao & Li 2014: fig. 72) by the terminal claw of the straight conductor, but differ by the shape of the cymbium and terminal claw closer to the apical part of cymbium ( Fig. 6A–B ). Females of Tekellina picurrucha resemble those of T. miuda Rodrigues & Estol sp. nov. and T. miudinha Rodrigues & Estol sp. nov. by the receptacles around the copulatory ducts, but differ by the course of the copulatory ducts not reaching the apical part of the receptacles and the receptacles close to each other ( Fig. 6C ).

Etymology

The specific epithet is derived from a popular Brazilian Portuguese expression and refers to its small size.

Type material

Holotype

BRAZIL – Rio Grande do Sul • ♂; Porto Alegre, Ilha dos Marinheiros ; 29°58′ S, 51°14′ W; 10 Aug. 1999; A.B. Bonaldo leg.; MCN 31476.

Paratype

BRAZIL – Rio Grande do Sul • 1 ♀; São Francisco de Paula ; 29°26′49″ S, 50°34′45″ W; 2004; R. Baldissera leg.; IBSP 50834 .

Other material examined

BRAZIL – Paraná • 1 ♀; Antonina, Reserva Natural do Rio da Cachoeira ; 25°25′44″ S, 48°42′43″ W; 23 Sep. 2005; E. Álvares leg.; MCN 45115 . – Rio Grande do Sul • 1 ♂, 1 ♀; Santo Antônio da Patrulha, Fazenda Paulo Lompra ; 29°50′18″ S, 50°30′58″ W; 2 Jun. 2000; A.B. Bonaldo leg.; MCN 32644 • 2 ♂♂, 2 ♀♀; Porto Alegre, Ilha Grande dos Marinheiros ; 30°01′58″ S, 51°13′48″ W; 8 Aug. 1999; A.B. Bonaldo leg.; MCN 31352 • 2 ♂♂, 1 ♀; same data as for preceding; MCN 31476 • 1 ♂, 1 ♀; Maquiné, Fepagro ; 29°54′ S, 50°19′ W; Equipe Biota leg.; IBSP 50822 • 1 ♂, 1 ♀; Pelotas, Passo da Micaela ; 31°46′34″ S, 52°21′34″ W; 1–3 May 1997; L.A. Moura leg.; MCN 28447 . – São Paulo • 1 ♀; Mogi das Cruzes, Parque Natural Municipal do Itapety ; 23°29′ S, 46°12′ W; 13–19 Oct. 2003; Equipe Biota leg.; MCN 48799 • 1 ♂; Guarulhos, Parque Estadual da Cantareira, Núcleo Cabuçu ; 23°24′5″ S, 46°35′24″ W; 16–22 Aug. 2001; Equipe Biota leg.; IBSP 166 • 1 ♀; São José do Barreiro, Parque Nacional da Serra da Bocaina ; 12°40′ 23°20′ S, 44°24′– 44°54′ W; 28. Apr.–3 May 2002; Equipe Biota leg.; IBSP 50821 • 1 ♀; Itirapina, Estação Ecológica de Itirapina ; 22º15′10″ S, 47º49′22″ W; Equipe Biota leg.; IBSP 50172 .

ARGENTINA – Misiones • 1 ♀; San Javier ; 27°52′17″ S, 55°08′17″ W; 1989; MCTP 573 .

Description

Male (holotype, MCN 31476)

Carapace ( Fig. 9A ) oval, yellow with brown dots medially. No teeth in chelicera. Eye region higher, subequal eyes,AME bigger with darker rings around. Legs light yellow with light brown spots.Abdomen ( Fig. 9A ) oval in dorsal view, subtriangular in lateral view ( Fig. 9B ), higher than wide, light brown with lighter spots. Total length 1.24. Carapace length 0.44, width 0.42. Abdomen length 0.65, width 1.05, height 0.66. Legs I 2.05 (femur 0.65 + patella and tibia 0.72+ tarsus 0.46 + metatarsus 0.22); II 1.3 (0.45 + 0.40 + 0.23 + 0.22); III 1.4 (0.48 + 0.45 + 0.26 + 0.21); IV 1.7 (0.63 + 0.48 + 0.34 + 0.25). Legs formula: 1432. Male palpus with paracymbium not enlarged retrolaterally ( Fig. 6A–B ). Embolus filamentous and coiling. Mesal arm with sharp apex and terminal claw-like arm directed clockwise ( Fig. 6A ).

Female (paratype, IBSP 50834)

Color pattern and abdomen like that of male ( Fig. 9C ). Total length 1.35. Carapace length 0.63, width 0.42. Abdomen length 0.84, width 1.17, height 0.7. Legs I 2.08 (femur 0.66 + patella and tibia 0.72 + tarsus 0.46 + metatarsus 0.24) II 1.5 (0.45 + 0.42 + 0.23 + 0.22); III 1.6 (0.48 + 0.45 + 0.27 + 0.22); IV 1.9 (0.64 + 0.48 + 0.35 + 0.25). Legs formula: 1432. Epigynal plate wider than long, weakly sclerotized, light brown. Copulatory ducts long and spiral surrounding receptacle and fertilization ducts short. Receptacles closely together ( Fig. 6C ).

Distribution

Argentina (San Javier) and Brazil (states of São Paulo, Paraná and Rio Grande do Sul) ( Fig. 10 ).

Figures

Fig. 6. A–C. Tekellina picurrucha Rodrigues & Estol sp. nov., ♂ (MCN 31476) and ♀ (IBSP 50834). A. Male palp, ventral view. B. ♂, palp, retrolateral view. C. ♀, epigynum, ventral view. D–E. T. miuda Rodrigues & Estol sp. nov., ♂ (MCN 48872) and ♀ (MCN 48871). D. ♂, palp, ventral view. E. ♂, palp, retrolateral view. F. ♀, epigynum, ventral view. G. T. miudinha Rodrigues & Estol sp. nov., ♀, holotype (MCN 48870), epigynum, ventral view. Scale bars = 0.25 mm. Abbreviations: see Material and methods.

Fig. 9. A–C. Tekellina picurrucha Rodrigues & Estol sp. nov. A. ♂ (MCN 31476), habitus, dorsal view. B. ♂ (MCN 31476), habitus, lateral view. C. ♀ (IBSP 50834), habitus, dorsal view. D–F. T. miuda Rodrigues & Estol sp. nov. D. ♂ (MCN 48872), habitus, dorsal view. E. ♂ (MCN 48872), habitus, lateral view. F. ♀ (MCN 48871), habitus, dorsal view. G–H. T. miudinha Rodrigues & Estol sp. nov. G. ♀, holotype (MCN 48870), habitus, dorsal view. H. ♀, holotype (MCN 48870), habitus, lateral view. Scale bars = 0.5 mm.

Fig. 10. Distribution map of Tekellina picurrucha Rodrigues & Estol sp. nov., T. miuda Rodrigues & Estol sp. nov. and T. miudinha Rodrigues & Estol sp. nov.