Tafana silhavyi ( Caporiacco, 1955 )

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 : 39-42

publication ID

https://doi.org/ 10.5852/ejt.2021.742.1291

publication LSID

lsid:zoobank.org:pub:23424EC3-8440-4C72-AD9E-C1EC3087F7CA

DOI

https://doi.org/10.5281/zenodo.4658618

persistent identifier

https://treatment.plazi.org/id/03CF87AD-FF8E-6607-FDD1-92B6FE32FC96

treatment provided by

Plazi

scientific name

Tafana silhavyi ( Caporiacco, 1955 )
status

 

Tafana silhavyi ( Caporiacco, 1955) View in CoL

Figs 6E View Fig , 8A–B, G–K View Fig , 9A, C–D View Fig , 22–23 View Fig View Fig , 33C View Fig , 34 View Fig

Anyphaena silhavyi Caporiacco, 1955: 386 , fig. 51a–b (type: male holotype from El Junquito, Venezuela, deposited in MUCV, examined).

Tafana silhavyi View in CoL – Brescovit 1997: 90.

Diagnosis

Males of Tafana silhavyi resemble those of T. chimirae sp. nov., T. maracay sp. nov., T. arawak sp. nov. and T. pittieri sp. nov. by having the laminar apophysis at the base of the embolus, but differ by presenting a secondary looping with wide curvature ( Figs 9A View Fig , 22C View Fig ). Females resemble those of T. maracay sp. nov. and T. arawak sp. nov. by having the wide atrium, but differ by having the copulatory ducts extremely large in the anterior region ( Figs 22F–G View Fig , 33C View Fig ).

Material examined

Holotype VENEZUELA • ♂; Federal District, El Junquito ; [10°28′0″ N, 67°5′00″ W]; Marcuzzi leg.; MUCV 741 . GoogleMaps

Other material

VENEZUELA – Aragua • 2 ♂♂, 10 ♀♀; Colonia Tovar; [10°24′20″ N, 67°17′22″ W]; no date; E. Simon leg.; MNHN 11312 View Materials GoogleMaps 1 ♂, 1 ♀; same collection data as for preceding; IBSP 258184 View Materials GoogleMaps .

Description

Male (MNHN 11312)

COLOR. Exemplar probably discolored. Carapace orange with cephalic region dark ( Fig. 22A View Fig ). Labium, sternum and endites yellow. Chelicerae reddish. Legs I–IV yellow, darker at tarsi. Abdomen gray with dark spots ( Fig. 22A View Fig ).

MEASUREMENTS. Total length 4.2, carapace length 1.73, width 1.1. Clypeus height 0.06. Eye diameters and interdistances: AME 0.08, ALE 0.12, PME 0.1, PLE 0.1; AME–AME 0.02, AME–ALE 0.02, PME– PME 0.1, PME–PLE 0.06, ALE–PLE 0.04. Chelicerae 0.9 long, with four promarginal teeth and seven retromarginal denticles.

LEG MEASUREMENTS. I—femur 1.9 /patella 0.7/ tibia 2.1/ metatarsus 1.8/ tarsus 0.7 /total 7.2; II— 1.7/ 0.7/ 1.13 / 1.49 / 0.65 / 5.67; III—1.3 /0.5 / 0.9/ 1.1/ 0.4/ 4.2; IV—1.9 / 0.7/ 1.5/ 1.9/ 0.5/ 6.5.

LEG SPINATION. I—tibia v2-2-2, p1-0-1, r1-0-1, metatarsus v2-0-0, p0-1-0, r0-1-0; II—tibia v2-2-2, p1-0-1, r1-0-1, metatarsus p0-1-0, r0-1-0; III—tibia v1-2-2, p1-1-0, r1-1-0; IV—tibia p1-1-1.

PALP. Retrolateral tibial apophysis short and curved; cymbium with retrolateral projection; projection at the base of the embolus laminar and coiled; embolus long, with large base and narrow apex; median apophysis long and curved apically; ventral tegular process hyaline and short; sperm duct an inverted ‘S-shape’ ( Figs 22C–E View Fig , 23A–C View Fig ).

ABDOMEN. Length 2.4, epigastric furrow 0.6 from tracheal spiracle, spiracle 1.2 from base of spinnerets.

Female (MNHN 11312)

COLOR. Exemplar probably discolored. Coloration as in males of this species ( Fig. 22B View Fig ).

MEASUREMENTS. Total length 4.4, carapace length 1.45, width 1.3. Clypeus height 0.04. Eye diameters and interdistances: AME 0.06, ALE 0.08, PME 0.06, PLE 0.08; AME–AME 0.02, AME–ALE 0.02, PME–PME 0.1, PME–PLE 0.04, ALE–PLE 0.04. Chelicerae 0.6 long, with four promarginal teeth and five retromarginal denticles.

LEG MEASUREMENTS. I—femur 1.3 /patella 0.6/ tibia 1.3/ metatarsus 1.1/ tarsus 0.5 /total 4.8; II— 1.2/ 0.6/ 1.13 / 1.0/ 0.5 /4.43; III—1.0/ 0.4/ 0.7 /0.9 /0.4 / 3.4; IV—1.4/ 0.5 /1.1 / 1.3/ 0.48 / 4.78.

LEG SPINATION. I—tibia v2-2-2, p1-1-0, r1-1-0, metatarsus v2-0-0, p1-0-0, r1-0-0; II—tibia v2-2-2, p1- 1-0, r1-1-0, metatarsus p1-0-0, r1-0-0; III—tibia v1-2-2, p1-1-0, r1-1-0, metatarsus v2-1-2; IV—tibia v1-2-2, r1-1-0, metatarsus v2-1-2.

EPIGYNUM. Hood triangular and sclerotized, connecting with lateral lobes; atrium large; epigynal plate covered by cuticle in the posterior region; lateral lobes sinuous. Internally, copulatory ducts large in the anterior region; primary spermathecae oval; secondary spermathecae small, above the primary spermathecae; fertilization ducts long ( Figs 22F–G View Fig , 33C View Fig ).

ABDOMEN. Length 2.9, epigastric furrow 0.8 from tracheal spiracle, spiracle 1.1 from base of spinnerets.

Variation

Two males: total length 4.1–4.4; carapace 1.83–1.9; femur I 1.7–1.9. Ten females: total length 4.0–6.2; carapace 1.6–2.3; femur I 1.3–1.9.

Distribution

Venezuela ( Fig. 34 View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Anyphaenidae

Genus

Tafana

Loc

Tafana silhavyi ( Caporiacco, 1955 )

De Oliveira, Luiz Fernando M. & Brescovit, Antonio Domingos 2021
2021
Loc

Tafana silhavyi

Brescovit A. D. 1997: 90
1997
Loc

Anyphaena silhavyi

Caporiacco L. Di. 1955: 386
1955
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