A Taxonomic Revision Of The Spider Genus Meriola Banks (Araneae: Trachelidae)
González, María E.
Grismado, Cristian J.
Ramírez, Martín J.
Zootaxa
2021
2021-02-24
4936
1
1
113
94HDS
(Mello-Leitao, 1941)
González & Grismado & Ramírez
2021
Mello-Leitao
1941
[151,623,1465,1492]
Arachnida
Trachelidae
Meriola
Animalia
Araneae
49
50
Arthropoda
species
lineolata
comb. nov.
Figs 39–42, 92 Ceto lineolata Mello-Leit„o, 1941c: 253 (male holotypefrom Río Negro, Paraná, Brazilin MNRJ 58289, examined).
Diagnosis.Males ( Figs 39h, 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 39a–g, 40, 42) are similar to M. mauryiby having large, oval S2 flanked by the smaller, CDR and S1, and a small hood ( Fig. 42d), 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 CetoSimon, 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 holotypehere examined. FIGURE 39. Meriola lineolata(Mello-Leit„o). a, female from S„o Paulo, Brazil, habitus, dorsal view (MZSP 12508); b, same, ventral view; c, same, lateral view; d, prosoma, dorsal view; e, same, ventral view; f, same, lateral view; g, habitus, anterior view. h, male from Paraná, Brazil, habitus, anterior view (MNRJ 58289). FIGURE 40. Meriola lineolata(Mello-Leit„o), female from Jujuy, Argentina (MACN-Ar 16326). a, habitus, dorsal view; b, same, ventral view; c, same, lateral view; d,prosoma, dorsal view; e, same, ventral view; f, same, lateral view; g, same, anterior view; h, left leg i, retrolateral view. In the original description, Mello-Leit„o wrote “Palpos sem apófise” (palps without apophyses), but the holotypehas a small RTA ( Fig. 41h–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): 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. FIGURE 41. Meriola lineolata(Mello-Leit„o), male (holotype MNRJ 58289). a, habitus, dorsal view; b, same, ventral view; c, same, lateral view; d, prosoma, dorsal view; e, same, ventral view; f, same, lateral view; gleft palp, prolateral view; h, same, retrolateral view; i, same, ventral view; j, same, cleared, retrolateral view. 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. 41g–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 Paranáin Brazil, and Saltaand Misionesin Argentina( Fig. 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). Paraná: Rio Negro, S 26.113059°, W 49.670720°, 1 male, temporary preparations MGM-00480, MGM-00481 (male holotype, MNRJ 58289). Argentina: Salta: Orán, Finca Jakulica, 25 kmNW de Aguas Blancas, S 22.5756843°, W 64.5263564°, 15.XI.1994, M. Ramírez& P. Goloboff, sample MGM-00346, 1 female( MACN-Ar 16326). 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).
3069306502
[302,417,1570,1594]
MNRJ
Brazil
Rio Negro
49
50
MNRJ 58289
1
Parana
holotype
3069306481
1965-12-26
MZSP
K. Lenko
Brazil
-23.51137
Barueri
1
-46.872944
53
54
MZSP 12508
1
1
Sao Paulo
3069306600
MNRJ
Brazil
-26.113058
Rio Negro
1
-49.67072
53
54
MNRJ 58289
1
1
Parana
holotype
3069306466
1994-11-15
MACN-Ar
M. Ramirez & P. Goloboff
Brazil
-22.575684
Finca Jakulica
1
-64.52636
Oran
53
54
MACN-Ar 16326
1
1
Argentina
holotype
3069306573
1960-05
MACN-Ar
J. Viana
Brazil
-26.94
Misiones
744
-54.58
53
54
MACN-Ar 16375
1
1
Misiones
holotype