Tafana arawak, 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: 47-49

publication ID

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

publication LSID

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

DOI

http://doi.org/10.5281/zenodo.4658767

persistent identifier

http://treatment.plazi.org/id/7BF3C0A5-9472-46CF-80F3-AEEDFB9EA022

taxon LSID

lsid:zoobank.org:act:7BF3C0A5-9472-46CF-80F3-AEEDFB9EA022

treatment provided by

Plazi

scientific name

Tafana arawak
status

sp. nov.

Tafana arawak   sp. nov.

urn:lsid:zoobank.org:act:7BF3C0A5-9472-46CF-80F3-AEEDFB9EA022

Figs 27 View Fig , 33E View Fig , 35 View Fig

Diagnosis

Males of Tafana arawak   sp. nov. resemble others of the silhavyi   group by a laminar and coiled apophysis at the base of the embolus, but differ by the retrolateral tibial apophysis bifid ( Fig. 27C–E View Fig ). Females resemble those of T. silhavyi   and T. maracay   sp. nov. by the epigynal plate with wide atrium, but differ by the atrium extremely wide and the large hood ( Figs 27F–G View Fig , 33E View Fig ).

Etymology

The specific name is derived from the Brazilian Portuguese word ‘Aruaques’ (in Spanish ‘Arahuaco’) for the name of an indigenous group from the Americas, named ‘Arawak’, meaning ‘flour eater’. The name should be treated as a noun in apposition.

Material examined

Holotype VENEZUELA • 1 ♂; Aragua, Colonia Tovar; [10°24′20″ N, 67°17′22″ W]; no date; E. Simon leg.; MNHN 11320 View Materials . GoogleMaps  

Paratype VENEZUELA • 1 ♀; same collection data as for holotype; MNHN 11320 View Materials GoogleMaps   .

Description

Male (holotype, MNHN 11320)

COLOR. Exemplar probably discolored. Carapace orange with cephalic region dark ( Fig. 27A View Fig ). Labium, sternum and endites yellow. Chelicerae reddish. Legs I–IV yellow, darkest at tarsi. Abdomen yellow with spots in dorsal view ( Fig. 27A View Fig ).

MEASUREMENTS. Total length 6.1, carapace length 2.7, width 2.2. Clypeus height 0.08. Eye diameters and interdistances: AME 0.08, ALE 0.12, PME 0.1, PLE 0.12; AME–AME 0.04, AME–ALE 0.02, PME– PME 0.12, PME–PLE 0.06, ALE–PLE 0.04. Chelicerae 1.0 long, with four promarginal teeth and four retromarginal denticles.

LEG MEASUREMENTS. I—femur 3.1/ patella 1.1/ tibia 3.8/ metatarsus 3.27 / tarsus 1.3/ total 12.57; II— 2.8/ 1.1/ 3.1 /2.8 / 1.1/ 10.9; III—2.0 /0.8 / 1.2/ 2.0/ 0.6/ 6.6; IV—2.8 / 0.75 /2.6 / 3.2/ 0.8/ 10.15.

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

PALP. Retrolateral tibial apophysis bifid with anterior branch truncated and posterior branch thin; cymbium with retrolateral projection; apophysis 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 long and hyaline; basal protuberance of the tegulum short; sperm duct with secondary looping in oblique position in the tegulum ( Fig. 27C–E View Fig ).

ABDOMEN. Length 3.2, epigastric furrow 0.63 from tracheal spiracle, spiracle 1.6 from base of spinnerets.

Female (paratype, MNHN 11320)

COLOR. Exemplar probably discolored. Coloration as in males of this species ( Fig. 27B View Fig ).

MEASUREMENTS. Total length 7.1, carapace length 2.9, width 2.2. Clypeus height 0.06. Eye diameters and interdistances: AME 0.08, ALE 0.1, PME 0.1, PLE 0.12; AME–AME 0.02, AME–ALE 0.02, PME– PME 0.14, PME–PLE 0.08, ALE–PLE 0.04. Chelicerae 1.0 long, with four promarginal teeth and six retromarginal denticles.

LEG MEASUREMENTS. I—femur 2.9/ patella 1.1/ tibia 3.2/ metatarsus 2.59 / tarsus 1.1/ total 10.89; II— 2.6/ 1.0/ 2.75 / 2.3/ 1.0 /9.65; III—2.0 / 0.8/ 1.5 /1.7 /0.6 / 6.6; IV—2.8/ 0.82 / 2.5/ 3.1 /0.75 / 9.97.

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 p1-1-0, r1-1-0; IV—tibia r1-1-0.

EPIGYNUM. Hood triangular; wide atrium; epigynal plate covered with hyaline cuticle in the posterior region; lateral lobes sinuous. Internally, copulatory ducts extremely large in the anterior region; primary spermathecae oval and separated; secondary spermathecae small, lateral of the primary spermathecae, and fertilization ducts longer than the primary spermathecae ( Figs 27F–G View Fig , 33E View Fig ).

ABDOMEN. Length 4.0, epigastric furrow 0.8 from tracheal spiracle, spiracle 2.2 from base of spinnerets.

Distribution

Venezuela ( Fig. 35 View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Anyphaenidae

Genus

Tafana