Goeldia portenha Almeida-Silva & Brescovit 2024, sp. nov.
Creators: name: Almeida-Silva, Lina M.
name: Brescovit, Antonio D.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Titanoecidae
Goeldia
Goeldia portenha

description: Goeldia portenha sp. nov.
(Figs 1E–F; 20; 26)
Type material. Holotype ♂ from Andalgalá (27°36’S 66°19’W), Catamarca, Argentina, 31.I.2986, P. Goloboff coll. (MACN 16126). Paratypes: 2♀ with same data as holotype (MACN 16126); 1♂ from Potrerillos (32°57’S 69°10’59”W), Mendoza, Argentina, 24.III.1979, A. Roig coll. (IBSP165958); 3♀ from Tafi del Valle (26°52’S 65°41’W), Tucumán, Argentina, 16.I.1981, A. Roig coll. (IBSP165949).
Additional Material Examined. BRAZIL. Brasília: Palácio da Alvorada (15°47’33”S 47°49’19”W), 2♂, 1962, R. Schiapelli, & J. M. Viana coll. (MACN 16071); ARGENTINA. Tucumán: El Mollar, Reserva Provincial de La Angostura (26°55’S 65°42’W), 2♀, 1 juv. 15.XII.1994, C. Grismado coll. (MACN 16037); Tafi del Valle (26°52’S 65°41’W), 19♀, 16.I.1981, A. Roig, coll. (MACN 16205); El Infiernillo (26°44’24”S 65°46’16”W), 3♀, 1 juv., 21.IV.2000, P. Goloboff & L. Lopardo coll. (MACN 16210). La Rioja: La Rioja (29°24’47”S 66°51’21”W), 1♀, XI.1943, J. M. Viana coll. (MACN16088); Guayapa (30°6’20”S 66°58’36”W), 1♀, 1 juv., X.1965, E. Maury coll. (MACN 16082); Guayapa (30°6’20”S 66°58’36”W), 1♂, X.1963, M. E. Galiano coll. (MACN 16072); Patquia (30°03’00”S 66°52’59”W), 4♀ 16–23.X.1963, M. E. Galiano coll. (MACN 16078); Chilecito (29°10’S 67°30’W), 1♀, 1955, M. E. Galiano coll., (MACN 16096); Cuesta de Miranda (29°20’S 67°48’W), 2♀, VIII.1994, M. Ramírez coll., (MACN 16048). Catamarca: Mutquin (28°19’S 66°10’W), elev. 200 m, 2♀, 1966, O. de Ferraris coll. (MACN 16029). La Pampa: (36°37’S 64°17’W) 5♀, 1♂, 20.XI.1934, Pereya coll. (MACN 16097); General Duval (38°43’S 66°24’W), 2♀, 13.XI.1974, E. Maury coll. (MACN 16116); Parque Nacional Lihuel Calel (37°57’S 65°39’W), 5♀, I. XI.1975, A. Toth & E. Maury coll. (MACN 16091); Parque Nacional Lihuel Calel (37°57’S 65°39’W), 2♀ 2 juv., 22.I.1985, M. Ramírez coll. (MACN 16042); Parque Nacional Lihuel Calel (37°57’S 65°39’W), 8♀, 1 juv., E. Maury coll. (MACN 16101); Santa Rosa (36°37’14”S 64°18’27”W), 1♀, no further data (MACN 16094); Parque Nacional Lihuel Calel, cerro Fortaleza, (38º1’14”S 65º35’32”W), elev. 419 m, 1♂, 3♀, 5 juv., 11.X.2014, A.D. Brescovit, A.J. Santos, L.N. Piacentini, I.L.F. Magalhães (MACN 34592); Parque Nacional Lihuel Calel, cerro de la Sociedad Científica Argentina (38º0’25”S 65º35’46”W), elev. 348 m, 1♀, 11.X.2014, A.D. Brescovit, A.J. Santos, L.N. Piacentini, I.L.F. Magalhães (MACN 34547, Fig. 1F). Salta: between Santa Maria (22°08’S 62°49’W) y Cafayate (26°05’S 65°58’W), 1♂, 19.X.1948, W. Partidge coll. (MACN 16134); Cerro Chuscha (26°08’56”S 66°13’51”W), 6 km NW El Cafayate, 3♀, 17.VII.1995 M. Ramírez & P. Goloboff coll. (MACN 16036); La Salamanca, 7 Km S Alemanía (25°37’27”S 65°36’47”W), 18.VII.1995, P. Goloboff & M. Ramírez coll. (MACN 16069); Neuquén: Neuquén (38°58’S 68°4’W), 1♂, IX.1973, O. de Ferraris coll. (MACN 16100); San Juan: Las Tumanas (30°51’53”S 67°19’20”W), 20 Km S Valle Fertil, 1♀, 1 juv., 14.IV.1979, A. Roig coll. (MACN 16129); Mendoza: Potrerillos (32°57’S 69°10’59”W), 1♂, 1♀, 24.III.1979, A. Roig coll. (MACN 16206); Papagayos (32°49’19”S 68°53’47”W), 2♀, 3 juv., IX.1981, A. Gonzalos coll. (MACN 16035).
Etymology. The specific epithet is a Brazilian Portuguese noun in apposition for the people from Buenos Aires, capital of Argentina.
Diagnosis. Goeldia portenha differs from other species of the genus by the presence of a pair of dorsal white spots (guanine deposits) on the opisthosoma, which are very strong in males but faint or absent in females (Fig. 1E–F). Males differ from other species by the tegular process usually with a subapical constriction (Fig. 20A–B). The female can be diagnosed by the epigynum with the rim almost vertical and fertilization ducts far from each other twice its length (Fig. 20E).
Description (Male, MACN 16126). Coloration: carapace brown, cephalic area slightly darker than thoracic area; sternum, endites and labium brown; chelicerae reddish brown. Legs: femur I as cephalic area and other leg segments yellowish brown. Opisthosoma brown with a dorsal pair of guanine deposits spots (Fig. 1E). Total length 5.25. Carapace: length 2.60; width 1.55; height 1.00. Clypeus: height 0.15. Opisthosoma: length 2.65; width 3.1. Eye diameters and interdistances:AME 0.08; ALE 0.10; PME 0.09; PLE 0.1; AME–AME 0.14; AME–ALE 0.09; PME– PME 0.09; PME–PLE 0.19; AME–PME 0.09; ALE–PLE 0.05. Chelicerae paturon: length 1.16. Leg measurements: I: femur 2.22/ patella 0.81/ tibia 2.00/ metatarsus 1.88/ tarsus 0.91/ total 6.47; II: 1.94/ 0.78/ 1.41/ 1.63/ 0.72/ 5.03; III: 1.44/ 0.66/ 1.13/ 1.22/ 0.59/ 5.03; IV: 1.88/ 1.75/ 0.78/ 1.63/ 0.63/ 6.66. Leg formula 1243. Leg spination: femur I p1ap; tibia I v0-2-0-2, r1-1-0-0-0; II p1ap; III v2sap, p1ap, r1ap; IV v0-0-1p-2, p1ap, r1ap; metatarsus I v1r-0- 1r- 0-1m, p1ap, r1ap; II v1r-0-1-1m- 1m, p1ap, r1ap; III v1r-0-2- 1m, p1ap, r1ap, d2ap; IV v2-0-1r-2-1p- 1m, p1ap, r1ap, d1ap. MLT apex partially sclerotized (Fig. 20C). Patelar apophysis conic and slightly curved posteriorly. Pars pendula thickening subdistal (Fig. 20C).
Female (MACN 16126). Coloration: as in male except for the opisthosoma dorsal spots, which are beige and not white guanine deposits (Fig. 1F). Total length 5.00. Carapace: length 2.65; width 1.75; height 1.0. Clypeus: height 1.6. Opisthosoma: length 2.55; width 2.05. Eye diameters and interdistances: AME 0.08; ALE 0.13; PME 0.09; PLE 0.11; AME–AME 0.10; AME–ALE 0.11; PME–PME 0.14; PME–PLE 0.21; AME–PME 0.13; ALE–PLE 0.08. Chelicerae paturon: length 1.14. Leg measurements: I: femur 1.88/ patella 0.92/ tibia 2.84/ metatarsus 1.4/ tarsus 0.54/ total 7.58; II: 1.72/ 0.8/ 1.56/ 1.36/ 0.64/ 6.08; III: 1.44/ 0.8/ 1.36/ 1.56/ 0.64/ 5.80; IV: 1.78/ 1.59/ 0.91/ 1.22/ 0.56/ 6.06. Leg formula 1243. Leg spination: femur I p1ap; tibia III r1ap; metatarsus I v1map, II–III v1map, p1ap, r1ap; IV v0-1p-1map, p1ap, r1ap. Copulatory ducts almost invisible at the copulatory opening area (Fig. 20E). Copulatory ducts short with apex dorsally bent (Fig. 20F). Vertical spermathecae taller than copulatory ducts and L-shaped (Fig. 20F). Horizontal spermathecae straight (Fig. 20F).
Variation. Length (8♂): total 4.95–5.48; carapace 2.47–2.69; femur I 1.97–2.34. (10♀): total 4.85–6.08; carapace 2.38–3.10; femur I 1.76–2.05. Some females lack the white spots on the dorsum of the opisthosoma. Tegular process sometimes more curved as represented in Fig. 20A and patellar apophysis proximally more sinuous (Fig. 20C).
Distribution. Known from Brasília, Brazil, and Argentina (Fig. 26).
description: Published as part of Almeida-Silva, Lina M. & Brescovit, Antonio D., 2024, Unraveling the mysteries of Goeldia Keyserling, 1891: revision, description of seven new species and first record from USA (Araneae: Titanoecidae), pp. 151-193 in Zootaxa 5428 (2) on pages 183-185, DOI: 10.11646/zootaxa.5428.2.1, http://zenodo.org/record/10847364