Meriola lineolata (Mello-Leitão, 1941) González & Grismado & Ramírez, 2021

González, María E., Grismado, Cristian J. & Ramírez, Martín J., 2021, A Taxonomic Revision Of The Spider Genus Meriola Banks (Araneae: Trachelidae), Zootaxa 4936 (1), pp. 1-113 : 50-54

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Meriola lineolata (Mello-Leitão, 1941)

comb. nov.

Meriola lineolata (Mello-Leitão, 1941) , comb. nov.

Figs 39–42 View FIGURE 39 View FIGURE 40 View FIGURE 41 View FIGURE 42 , 92 View FIGURE 92

Ceto lineolata Mello-Leit „o, 1941c: 253 (male holotype from Río Negro , Paraná, Brazil in MNRJ 58289 View Materials , examined).

Diagnosis. Males ( Figs 39h View FIGURE 39 , 41 View FIGURE 41 ) are recognized by the combination of a small, acute RTA, the slender, distally projecting copulatory bulb, and the absence of cuspules on the legs. Females ( Figs 39 View FIGURE 39 a–g, 40, 42) are similar to M. mauryi by having large, oval S2 flanked by the smaller, CDR and S1, and a small hood ( Fig. 42d View FIGURE 42 ), but can be distinguished by the smaller and more posterior hood, close to the copulatory openings.

Notes. Lyle & Haddad (2010) provided a diagnosis of the genus Cetonana (replacement name for Ceto Simon , occupied), which can be recognized by the presence of ventral leg cusps on metatarsi and tarsi I and II of both sexes (absent in tibiae of both sexes of Meriola lineolata ); scopulate metatarsi and tarsi I and II of females comprising erectile bristles; the absence of leg spines; flat carapace; AME that are clearly larger than the other eyes; PME that are smaller than the PLE; female epigyne with posterior copulatory openings; and male palp with strongly ventrally curved cymbium and a tegulum occupying only part of the ventral side of the cymbium. This combination of characters is not present in the holotype here examined.

In the original description, Mello-Leit„o wrote “Palpos sem apófise” (palps without apophyses), but the holotype has a small RTA ( Fig. 41 View FIGURE 41 h–i).

Description. Female (MZSP 12508): Carapace length 1.55, width 1.05, narrowed in eye region. Carapace coated with low tubercles. Palpal tarsus length 0.40. Sternum length 0.83, width 0.67. Length of tibia/metatarsus: I, 1.17/0.92; II, 0.83/0.75; III, 0.50/0.53; IV, 0.83/0.83. Spines and leg cuspules absent. Distal segments of legs I and II covered with long setae, weak scopulae, metatarsi of legs III and IV with setae and distinct preening comb. Opisthosoma length 2.00. Color in ethanol: Prosoma reddish-orange. Chelicerae reddish-orange. Legs yellowish-orange. Distal segments of legs I and II reddish-orange. Sternum orange. Opisthosoma yellowish-brown. Venter pale yellow. Epigyne ( Fig. 42 View FIGURE 42 ): a single plate with transverse ridge before small median hood, followed by two small, median copulatory openings and arched copulatory ducts; S2 elongated, widened anteriorly, connected through transversal copulatory ducts to the CDR. Receptacle of copulatory ducts very small and rounded, anterior to S1. S1 small, spherical.

Male (holotype): Carapace length 1.38, width 1.00, narrowed in eye region. Length of tibia/metatarsus: I, missing; II, 0.83/0.65; III, 0.48/0.50; IV, 0.75/0.75. Palpal tarsus length 0.43. Sternum length 0.80, width 0.67. Spines and leg cuspules absent. Opisthosoma length 1.58. Coloration as in female. Palp ( Fig. 41 View FIGURE 41 g–i): Tibia short. RTA short, ventral edge arched. Embolus short, slightly curved to prolateral.

Natural history and habitat. Unknown

Distribution. Only known from subtropical areas in S„o Paulo and Paraná in Brazil, and Salta and Misiones in Argentina ( Fig. 89 View FIGURE 89 ).

Records. BRAZIL: São Paulo: Baruerí , S 23.511369°, W 46.872942°, 26.XII.1965, K. Lenko, 1 female, temporary preparations MGM-00482, MGM-00483 ( MZSP 12508 View Materials ) GoogleMaps . Paraná: Rio Negro , S 26.113059°, W 49.670720°, 1 male, temporary preparations MGM-00480, MGM-00481 (male holotype, MNRJ 58289 View Materials ) GoogleMaps . Argentina: Salta: Orán, Finca Jakulica , 25 km NW de Aguas Blancas, S 22.5756843°, W 64.5263564°, 15.XI.1994, M. Ramírez & P. Goloboff, sample MGM-00346, 1 female ( MACN-Ar 16326 ) GoogleMaps . Misiones: no further data [center of province S 26.94°, W 54.58°], V.1960, J. Viana, 1 female, samples MGM-00344, MGM-00345 ( MACN-Ar 16375 ) GoogleMaps .