Taxonomic revision and cladistic analysis of ghost spiders of the genus Tafana Simon, 1903 (Araneae: Dionycha, Anyphaenidae), with the descriptions of twelve new species
De Oliveira, Luiz Fernando M.
Brescovit, Antonio Domingos
European Journal of Taxonomy
2021
2021-03-31
742
1
77
98Z34
De Oliveira & Brescovit, 2021
De Oliveira & Brescovit
2021
[652,838,1006,1032]
Arachnida
Anyphaenidae
Tafana
Animalia
Araneae
53
54
Arthropoda
species
orinoco
sp. nov.
urn:lsid:zoobank.org:act: 34463201-9F72-43FF-886B-A9EFCE74C526 Figs 30–31, 33H, 34
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 30C–E, 31A–C). Females differ from those of the other species in the silhavyigroup by having quadrangular atrium and copulatory ducts extremely large and short in anterior region of the vulva ( Figs 30G, 33H).
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.
Material examined Holotype VENEZUELA• 1♂; Mawaca, Federal Territory of Amazonas; 84 kmSE of La Esmeralda; [ 3°10′22.73″ N, 65°32′32.39″ W]; 5 Mar. 1985; J. Latkeand R. Candialeg.; 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. Steinerleg.; USNM• 1 ♂, 1 ♀; Mawaca, Central, Federal Territory of Amazonas; [ 3°10′22.73″ N, 65°32′32.39″ W]; 5 Mar. 1985; J. Latkeand R. Candialeg.; MIZA 07062.
Description Male( holotype, MIZA 07062) COLOR. Exemplar probably discolored. Carapace reddish brown ( Fig. 30A). Labium, sternum and endites reddish brown. Chelicerae reddish. Legs I–IV reddish with spots on the articles. Abdomen with dark spots ( Fig. 30A). Fig. 30. Tafana orinoco sp. nov.(A, C–E =holotype, ♂, MIZA 07062; B, F–G =paratype,♀, MIZA 07062). A. Habitus, dorsal view. B. Habitus, dorsal view. C. Left palp, ventral view. D. Left palp, retrolateral view. E. Left palp, dorsal view. F. Epigynum, ventral view. G. Vulva, dorsal view. Abbreviations: A= atrium; CD =copulatory ducts; CO=copulatory opening; E= embolus; FD = fertilization ducts; H =hood; LL = lateral lobes; MA=median apophysis; MTA= median tibial apophysis; PA= patellar apophysis; ABE = primary apophysis of base of the embolus; RTA=retrolateral tibial apophysis; S1= primary spermathecae; S2 = secondary spermathecae; sABE =secondary apophysis of base of the embolus; ST= subtegulum; T=tegulum. Scale bars: A–B =3.5 mm; C =0.5 mm; D–E =0.66 mm; F–G=0.25 mm. 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 v2-2-2, p1-1-0, r1-1-0, metatarsus v2-0-0, p0-1-0, r0-1-0; II—tibia v2-2-2, p1-1-0, r1-1-0, metatarsus p0-1-0, r0-1-0; III—tibia p1-1-1, r1-1-1; IV—tibia p1-1-1. 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 30C–E, 31A–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. 30B). 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. Fig. 31. Tafana orinoco sp. nov., ♂ (MIZA 07062). A. Left palp, ventral view. B. Left palp, ventral view. C. Left palp, retrolateral view. Abbreviations: C= cymbium; E=embolus; MA= median apophysis; pABE =primary apophysis of base of the embolus; RTA=retrolateral tibial apophysis; sABE= secondary apophysis of base of the embolus; ST =subtegulum; T=tegulum. Scale bars: A, C=0.5 mm; B= 0.2 mm. Fig. 32.Female genitalia, digested. A. Arachosia praesignis(Keyserling, 1891) (Amaurobioidinae)(IBSP 87975). B. Xiruana gracilipes(Keyserling, 1891) (Anyphaeninae)(IBSP 166120). C. Aysha prosperaKeyserling, 1891(IBSP 19783). D. Anyphaena accentuata(Walckenaer, 1802) (MCN). E. Patrera fulvastra Simon, 1903(MCN 24208). F. Tafana riveti Simon, 1903(MCZ). G. Tafana straminea(L. Koch, 1866) (AMNH). H. Tafana quelchi( Pocock, 1895)(IBSP 32131). I. Tafana kunturmarqa sp. nov.(ICN-Ar). J. Tafana humahuaca sp. nov.(MACN-Ar 41788). K. Tafana pastaza sp. nov.(AMNH). L. Tafana nevada sp. nov.(AMNH). Abbreviations: CD =copulatory ducts; CO= copulatory opening; FD = fertilization ducts; H =hood; S1= primary spermathecae; S2 =secondary spermathecae. Asterisks to globose membranous extension of proximal copulatory ducts. Scale bars: A–B, D–I, K–L=0.25 mm; C=0.3 mm; J = 0.5 mm. LEG SPINATION. I—tibia v2-2-2, p1-1-0, r1-1-0, metatarsus v2-0-0, p0-1-0, r0-1-0; II—tibia v2-2-2, p1-1-0, r1-1-0, metatarsus p0-1-0, r0-1-0; III—tibia p1-1-1, r1-1-1; IV—tibia p1-1-1. 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 30F–G, 33H). Fig. 33.Female genitalia, digested. A. Tafana huatanay sp. nov.(MUSM). B. Tafana ruizi sp. nov.(IBSP 258183). C. Tafana silhavyi( Caporiacco, 1955) (MNHN). D. Tafana maracay sp. nov.(MNHN 11314). E. Tafana arawak sp. nov.(MNHN 11320). F. Tafana pittieri sp. nov.(AMNH). G. Tafana oliviae sp. nov.(MCZ). H. Tafana orinoco sp. nov.(MIZA 07062). Abbreviations: CD =copulatory ducts; FD =fertilization ducts; H =hood; S1 =primary spermathecae; S2 =secondary spermathecae. Scale bars: A–H =0.25 mm. Fig. 34.Distribution map of species of Tafana. Fig. 35.Distribution map of species of Tafana. ABDOMEN. Length 4.0, epigastric furrow 0.5 from tracheal spiracle, spiracle 2.1 from base of spinnerets.
Distribution Known only from Venezuela( Fig. 34).
3066856351
1985-03-05
MIZA
J. Latke & R. Candia
Venezuela
3.1729805
Federal Territory of Amazonas
1
-65.54233
Mawaca
53
54
MIZA 07062
1
1
Amazonas
holotype
3066856339
1985-03-05
MIZA
J. Latke & R. Candia
Venezuela
3.1729805
VENEZUELA
1
-65.54233
Mawaca
53
54
MIZA 07062
1
1
Amazonas
paratype
3066856368
1985-02-12
USNM
W. E. Steiner
Venezuela
Division
0.8863889
Federal Territory of Amazonas
21
-65.98944
Federal Territory of Amazonas
53
54
1
1
Amazonas Division
3066856303
1985-03-05
MIZA
J. Latke & R. Candia
Venezuela
Mawaca
3.1729805
Federal Territory of Amazonas
1
-65.54233
Central
53
54
MIZA 07062
2
1
1
Amazonas