Goeldia mexicana
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 mexicana

description: Goeldia mexicana (O. Pickard-Cambridge, 1896)
(Figs 15; 24)
Temecula mexicana O. Pickard-Cambridge, 1896: 170, pl. 22, fig. 8 (holotype male from Teapa (17°32’07”N 92°45’03”W),
Tabasco, Mexico, deposited at NHM, examined); F.O. Pickard-Cambridge 1902: 359, pl. 83, figs 23–24 (descr. female). Goeldia funesta: Lehtinen 1967: 236 (syn). Goeldia mexicana: Leech 1972: 104, figs 185–186, 383–384 (removed from syn. with G. funesta); World Spider Catalog
2023.
Remarks. Leech (1972: 104) mistakenly mentions that Lehtinen (1967: 236) synonymized G. luteipes and G. tizamina with Temecula mexicana.
Additional Material Examined. MEXICO. Veracruz: Emiliano Zapata, El Aguaje (19°25’00”N 96°37’00”W), 7 Km S of La Bandera, 1♀, 23.XII.1976, J. Reddel coll. (AMNH); Catemaco, Lago Catemaco (18°24’N 95°07’W), 1♀, W. J. Gertsch & W. Ivie coll. (AMNH). Puebla: Grutas Atepolihuit, 5 km SE of Ceutzalan (20°01’07”N 97°31’16”W), 1♀, 18.XII.1976, D. McZengie & C. Soileau coll. (AMNH). Chiapas: Toniná (16°58’49”N 92°17’17”W), 15 Km E of Ocosingo, elev. 920 m, 1♀, 28.VI.1950, C. and M. Goodnight & L.J. Stannard coll. (AMNH); San Cristobal de Las Casas (16°44’12”N 92°38’18”W), 1♀, C. and M. Goodnight coll. (AMNH); El Real (16°54’N 91°45’50”W), Postrero, 3♀, 30.VI.1950, C. and M. Goodnight coll. (AMNH); 6.4 Km SE of San Cristobal (16°42’N 92°36’W), 1♀, 23.VII.1966, J & W. Ivie coll. (AMNH); 24 km NO of Arriaga, (16°25’N 94°01’W), pine forest, 1♀, 27.VII.1966 J. & W. Ivie coll. (AMNH). Tabasco: near Grutas de Cocona (17°34’7”N 92°56’37”W), 1♀, 25.VIII.1972, J. Cook, R. Mitchell & F. Russell coll. (AMNH); Villahermosa (17°59’13”N 92°55’10”W), 1♀, 2.IV.1969 (AMNH). Oaxaca: San Felipe (18°04’00”N 96°31’59”W), 2♀, 24.VIII.1947, H. Wagner coll. (AMNH); Orizaba (18°51’0”N 97°6’0”W), elev. 1200 m, 1♀, 7.VII.1941, H. Dybas coll. (AMNH). HONDURAS. Copán: Copán Ruins (14°50’N 89°09’W), 1♀, 7.III.1939, R. V. Chamberlin coll. (AMNH). COSTA RICA. Puntarenas: Monteverde (10°18’51.32”N 84°49’30.08”W), 12.8 Km of Belo M. V., (10°21’N 84°48’W), 1♀, Roth-Schroepfer coll. (AMNH). PANAMA. Chiquirí: South of Vulcano Baru (8°48’29”N 82°32’35”W), elev. 1000–1700 m, 1♀, 28.I.1987, E.S. Ross coll. (CAS 9025932); Panama: Panama city (8°59’0”N 79°31’0”W), 1♀, II.1945, C.D. Michener coll. (AMNH).
Diagnosis. Goeldia mexicana differs from the other species by the male palp with tegular process triangular, short, and distally narrowed (Fig. 15A); and patellar apophysis straight, triangular, with tip rounded (Fig. 15B–C). The female epigynum can be recognized by its median field well developed, resembling G. luteipes but differing by the median area posteriorly projected (Fig. 15E); apex of the copulatory ducts dorsally projected, with enlarged bases and vertical spermathecae short (Fig. 15F).
Description. Male (AMNH). Coloration: carapace brown; chelicerae reddish brown; labium, endites, legs and sternum yellowish brown; opisthosoma pale brown. Total length: 5.56. Carapace: length 2.45, width 1.75, height 0.63. Opisthosoma: length 2.69, width 1.44. Clypeus: height 0.2. Eye diameters and interdistances: AME 0.06; ALE 0.09; PME 0.07; PLE 0.09; AME–AME 0.11; AME–ALE 0.13; PME–PME 0.16; PME–PLE 0.2; AME–PME 0.11; ALE–PLE 0.06. Paturon: 1.13 long. Leg measurements: I: femur 2.04/ patella 0.72/ tibia 1.80/ metatarsus 1.6/ tarsus 0.88/ total 7.04; II: 1.75/ 0.78/ 1.56/ 1.53/ 0.72/ 6.34; III: 1.64/ 0.8/ 1.28/ 1.4/ 0.64/ 5.76; IV: 1.93/ 0.75/ 1.75/ 1.56/ 0.63/ 6.61. Leg formula: 1423. Leg spination: femur I p1ap; metatarsus I v1r-1r- 1m, r1ap; II v1p-2- 1m, r1ap, p1ap; III v0-2-2ap, p1ap, r1ap; IV v2-2-1m-2ap, r0-2-0-1ap, p0-1-0-2ap. Male palp with apex of MLT partially sclerotized (Fig. 15C). Cymbium with modified setae (Fig. 15D). Pars pendula thickening subdistal (Fig. 15D).
Female (AMNH). Coloration: carapace, endites and chelicerae brown; labium dark brown; legs and sternum pale brown. Total length: 4.50. Carapace: length 2.0, width 1.6, height 0.72. Opisthosoma: length 2.5, width 1.9. Clypeus: height 0.14. Eye diameters and interdistances: AME 0.10; ALE 0.10; PME 0.08; PLE 0.09; AME–AME 0.07; AME–ALE 0.01; PME–PME 0.13; PME–PLE 0.19; AME–PME 0.10; ALE–PLE 0.08. Chelicerae paturon: length 0.89. Leg measurements: I: femur 1.54/ patella 0.66/ tibia 1.28/ metatarsus 1.22/ tarsus 0.64/ total 5.34; II: 1.34/ 0.69/ 1.12/ 0.98/ 0.58/ 4.72; III: 1.25/ 0.65/ 0.98/ 0.85/ 0.50/ 4.23; IV: 1.45/ 0.73/ 1.23/ 1.00/ 0.50/ 4.90. Leg formula: 1423. Leg spination: femur I p1sa; metatarsus I v0-1r-1, r1ap; II p1ap, r1ap, v1ap or v0-1r- 1m; III p1ap, r1ap, v1ap; IV v1m-0-1map or v0-1p-1map, p1ap, r1ap. Epigynum median field wide and covering part of the copulatory openings (Fig. 15E). Epigynal rim very narrow (Fig. 15E). Fertilization ducts close together, with 1/3 the width of the middle field (Fig. 15E). Copulatory ducts with enlarged base and heavily sclerotized (Fig. 15F). Vertical spermathecae very short, almost the height of the copulatory duct base (Fig. 15F). Apex of the copulatory duct dorsally bent (Fig. 15F). Apex of the horizontal spermathecae ventrally bent (Fig. 15F).
Variation. Coloration can be darker, with variable pattern where leg segments are proximally and/or dorsally lighter colored than the other segments/surfaces. Length (10 ♀): total 3.5–5.93; carapace 1.52–2.43; femur I 1.05– 1.81.
Distribution. Southern Mexico, Honduras, Costa Rica and Panama (Fig. 24).
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 174-175, DOI: 10.11646/zootaxa.5428.2.1, http://zenodo.org/record/10847364