Tafana ruizi, De Oliveira & Brescovit, 2021

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, pp. 1-77 : 37-39

Tafana ruizi sp. nov.

urn:lsid:zoobank.org:act:DAF38D70-D874-40E0-9C78-A041F4B36B88

Figs 21 , 33B , 34

Diagnosis

Males of Tafana ruizi sp. nov. resemble those of T. straminea and T. kunturmarqa sp. nov. by having the base of the embolus large and inclined, but differ by having the ventral tegular process large and apex of tegulum not rounded ( Fig. 21C ). Females resemble those of T. straminea and T. kunturmarqa sp. nov. by having the atrial septum, but differ by having the wide atrium, showing the copulation openings and hood long and circular ( Figs 21F–G , 33B ).

Etymology

The specific name is a patronym in honor of the Cuban arachnologist Alexandre Sánchez-Ruiz for his contributions to the taxonomy of spiders.

Material examined

Holotype COLOMBIA • 1 ♂; Departamento de Caldas, Pensilvania; [5°23′02″ N, 75°09′40″ W]; 10 Oct. 2003; A. Sánchez-Ruiz leg.; IBSP 258183 .

Paratype COLOMBIA • 1 ♀; same collection data as for holotype; IBSP 258183 .

Description

Male (holotype, IBSP 258183)

COLOR. Carapace reddish brown ( Fig. 21A ). Labium, sternum and endites yellow. Chelicerae reddish brown. Legs I–IV yellow with spots, darker at tarsi. Abdomen dark with spots yellow in dorsal view ( Fig. 21A ).

MEASUREMENTS. Total length 6.9, carapace length 3.2, width 2.5. Clypeus height 0.1. Eye diameters and interdistances: AME 0.1, ALE 0.14, PME 0.14, PLE 0.14; AME–AME 0.08, AME–ALE 0.1, PME– PME 0.16, PME–PLE 0.16, ALE–PLE 0.04. Chelicerae 2.0 long, with four promarginal teeth and five retromarginal denticles.

LEG MEASUREMENTS. I—femur 2.7 /patella 1.2/ tibia 2.7/ metatarsus 2.3 / tarsus 1.1/ total 10.0; II— 2.5/ 1.1/ 2.5 /2.0 / 1.0/ 9.1; III—2.0 / 0.9/ 1.4/ 1.7/ 0.6/ 6.6; IV—2.4 / 1.1/ 2.3/ 2.7 /0.8 / 9.3.

LEG SPINATION. I—tibia v1-2-1-1-1, metatarsus v2-0-0; II—tibia v0-2-1; III—tibia v1-2-2, p0-0-1, r0-1-1, metatarsus v2-0-2, p0-1-1, r0-1-1; IV—tibia v1-2-2, r1-1-0, metatarsus v2-0-2.

PALP. Retrolateral tibial apophysis long and curved; cymbium with retrolateral projection; apophysis at the base of the embolus short and furrowed; embolus long; ventral tegular process wide and near the median apophysis; sperm duct with the secondary looping almost reaching apex of tegulum ( Fig. 21C– E ).

ABDOMEN. Length 3.6, epigastric furrow 0.9 from tracheal spiracle, spiracle 1.1 from base of spinnerets.

Female (paratype, IBSP 258183)

COLOR. Coloration as in males of this species, except for the reddish carapace and chelicerae reddish brown and robust ( Fig. 21B ). Abdomen gray with spots in dorsal view ( Fig. 21B ).

MEASUREMENTS. Total length 7.4, carapace length 3.0, width 2.4. Clypeus height 0.10. Eye diameters and interdistances: AME 0.12, ALE 0.14, PME 0.14, PLE 0.14; AME–AME 0.06, AME–ALE 0.06, PME–PME 0.2, PME–PLE 0.12, ALE–PLE 0.04. Chelicerae 1.2 long, with five promarginal teeth and six retromarginal denticles.

LEG MEASUREMENTS. I—femur 2.1 /patella 1.1/ tibia 1.9/ metatarsus 1.5/ tarsus 0.8 /total 7.4; II— 2.0/ 1.1/ 1.8 /1.5 / 0.8/ 7.2; III—1.52 /0.9 / 1.1/ 1.4/ 0.5/ 5.42; IV—2.0 / 1.0 /2.0 / 2.2/ 0.6/ 7.8.

LEG SPINATION. I—tibia v2-2-0, metatarsus v2-0-0; III—metatarsus v2-0-2, p1-0-1, r0-0-1; IV—tibia r0- 1-0, metatarsus v2-0-2, p0-1-1, r0-1-1.

EPIGYNUM. Hood circular; atrial septum present; epigynal plate covered by cuticle in the posterior region; lateral lobes extremely curved in anterior region. Internally, copulatory ducts sinuous and laminar; primary spermathecae large and oval; secondary spermathecae short and rounded in the anterior region on the copulatory ducts; fertilization ducts long over the primary spermathecae ( Figs 21F–G , 33B ).

ABDOMEN. Length 4.1, epigastric furrow 0.98 from tracheal spiracle, spiracle 1.9 from base of spinnerets.

Distribution

Colombia ( Fig. 34 ).

Figures

Fig. 21. Tafana ruizi sp. nov. (A, C–E =holotype, ♂, IBSP 258183; B, E–F =paratype, ♀, IBSP 258183). A. Habitus, dorsal view.B. Habitus, dorsal view.C. Left palp, ventral view (arrow indicating the base of the embolus). D. Left palp, retrolateral view. E. Left palp, dorsal view. F. Epigynum, ventral view. G. Vulva, dorsal view. Abbreviations: A = atrium; ABE= apophysis of base of the embolus; CD =copulatory ducts; CO =copulatory opening; E =embolus; FD =fertilization ducts; H =hood; LL= lateral lobes; MA =median apophysis; RTA=retrolateral tibial apophysis; S1=primary spermathecae; S2 = secondary spermathecae; T =tegulum. Scale bars: A–B=3.5 mm; C=0.5 mm; D–G =0.25 mm.

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.