Tafana orinoco De Oliveira & Brescovit 2021
- Dataset
- Taxonomic revision and cladistic analysis of ghost spiders of the genus Tafana Simon, 1903 (Araneae: Dionycha, Anyphaenidae), with the descriptions of twelve new species
- Rank
- SPECIES
- Published in
- De Oliveira, Luiz Fernando M., Brescovit, Antonio Domingos (2021): Taxonomic revision and cladistic analysis of ghost spiders of the genus Tafana Simon, 1903 (Araneae: Dionycha, Anyphaenidae), with the descriptions of twelve new species. European Journal of Taxonomy 742: 1-77, DOI: 10.5852/ejt.2021.742.1291, URL: http://dx.doi.org/10.5852/ejt.2021.742.1291
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Anyphaenidae
- genus
- Tafana
- species
- Tafana orinoco
description
Description Male (holotype, MIZA 07062) COLOR. Exemplar probably discolored. Carapace reddish brown (Fig. 30 A). Labium, sternum and endites reddish brown. Chelicerae reddish. Legs I – IV reddish with spots on the articles. Abdomen with dark spots (Fig. 30 A). MEASUREMENTS. Total length 7.9, carapace length 3.7, width 3.0. Clypeus height 0.1. Eye diameters and interdistances: AME 0.12, ALE 0.18, PME 0.16, PLE 0.16; AME – AME 0.04, AME – ALE 0.02, PME – PME 0.1, PME – PLE 0.08, ALE – PLE 0.02. Chelicerae 1.5 long, with four promarginal teeth and seven retromarginal denticles. LEG MEASUREMENTS. I — femur 4.0 / patella 1.6 / tibia 4.2 / metatarsus 3.9 / tarsus 1.9 / total 15.6; II — 3.9 / 1.59 / 3.8 / 3.6 / 1.5 / 14.39; III — 3.2 / 1.4 / 2.5 / 3.1 / 1.09 / 11.29; IV — 4.1 / 1.5 / 3.6 / 4.5 / 1.3 / 15.0. LEG SPINATION. I — tibia v 2 - 2 - 2, p 1 - 1 - 0, r 1 - 1 - 0, metatarsus v 2 - 0 - 0, p 0 - 1 - 0, r 0 - 1 - 0; II — tibia v 2 - 2 - 2, p 1 - 1 - 0, r 1 - 1 - 0, metatarsus p 0 - 1 - 0, r 0 - 1 - 0; III — tibia p 1 - 1 - 1, r 1 - 1 - 1; IV — tibia p 1 - 1 - 1. PALP. Retrolateral tibial apophysis short and curved; cymbium without retrolateral projection; apophysis at the base of the embolus bifid with secondary apophysis furrowed; embolus short; median apophysis long and curved apically; sperm duct with secondary looping not reaching the apex of the tegulum; subtegulum strongly projected; ventral tegular process inconspicuous (Figs 30 C – E, 31 A – C). ABDOMEN. Length 4.1, epigastric furrow 1.0 from tracheal spiracle, spiracle 2.0 from base of spinnerets. Female (paratype, MIZA 07062) COLOR. Coloration as in males of this species (Fig. 30 B). MEASUREMENTS. Total length 7.5, carapace 3.4, width 2.6. Clypeus height 0.1. Eye diameters and interdistances: AME 0.12, ALE 0.14, PME 0.14, PLE 0.12; AME – AME 0.02, AME – ALE 0.02, PME – PME 0.18, PME – PLE 0.12, ALE – PLE 0.04. Chelicerae 1.6 long, with four promarginal teeth and five retromarginal denticles. LEG MEASUREMENTS. I — femur 3.1 / patella 1.4 / tibia 3.22 / metatarsus 2.9 / tarsus 1.1 / total 11.72; II — 3.1 / 1.2 / 3.0 / 2.72 / 1.1 / 11.12; III — 2.1 / 1.1 / 1.6 / 2.2 / 0.73 / 7.73; IV — 3.3 / 1.24 / 2.9 / 3.3 / 0.84 / 11.58. LEG SPINATION. I — tibia v 2 - 2 - 2, p 1 - 1 - 0, r 1 - 1 - 0, metatarsus v 2 - 0 - 0, p 0 - 1 - 0, r 0 - 1 - 0; II — tibia v 2 - 2 - 2, p 1 - 1 - 0, r 1 - 1 - 0, metatarsus p 0 - 1 - 0, r 0 - 1 - 0; III — tibia p 1 - 1 - 1, r 1 - 1 - 1; IV — tibia p 1 - 1 - 1. EPIGYNUM. Hood narrow and rounded, connected to the lateral lobes; wide atrium; epigynal plate not covered by hyaline cuticle in the posterior region; sinuous and narrow lateral lobes. Internally, copulatory ducts large and short; secondary spermathecae above the primary spermathecae; primary spermathecae separated; fertilization ducts long, superimposed on the primary spermathecae (Figs 30 F – G, 33 H). ABDOMEN. Length 4.0, epigastric furrow 0.5 from tracheal spiracle, spiracle 2.1 from base of spinnerets.
description
urn: lsid: zoobank. org: act: 34463201 - 9 F 72 - 43 FF- 886 B-A 9 EFCE 74 C 526 Figs 30 – 31, 33 H, 34
diagnosis
Diagnosis Males of Tafana orinoco sp. nov. resemble those of T. pastaza sp. nov. by having the shape of the apophysis at the base of the embolus bifid, but differ by the primary apophysis conical and curved in the apex and secondary apophysis furrowed, median tibial apophysis short and triangular in retrolateral position (Figs 30 C – E, 31 A – C). Females differ from those of the other species in the silhavyi group by having quadrangular atrium and copulatory ducts extremely large and short in anterior region of the vulva (Figs 30 G, 33 H).
distribution
Distribution Known only from Venezuela (Fig. 34).
etymology
Etymology The specific name, a noun in apposition, is a tribute to ‘ River Orinoco’, one of the most important rivers of the South American continent.
materials_examined
Material examined Holotype VENEZUELA • 1 ♂; Mawaca, Federal Territory of Amazonas; 84 km SE of La Esmeralda; [3 ° 10 ′ 22.73 ″ N, 65 ° 32 ′ 32.39 ″ W]; 5 Mar. 1985; J. Latke and R. Candia leg.; MIZA 07062. Paratype VENEZUELA • 1 ♀; same collection data as for holotype; MIZA 07062. Other material VENEZUELA – Amazonas Division • 1 ♂; Federal Territory of Amazonas, Cerro de La Neblina; [00 ° 53 ′ 11 ″ N, 65 ° 59 ′ 22 ″ W]; 12 Feb. 1985; W. E. Steiner leg.; USNM • 1 ♂, 1 ♀; Mawaca, Central, Federal Territory of Amazonas; [3 ° 10 ′ 22.73 ″ N, 65 ° 32 ′ 32.39 ″ W]; 5 Mar. 1985; J. Latke and R. Candia leg.; MIZA 07062.