Patrera virgata ( Keyserling, 1891 )

Oliveira, Luiz Fernando M. & Brescovit, Antonio D., 2021, The spider genus Patrera Simon (Araneae: Dionycha, Anyphaeninae) in the Atlantic Forest biome, with the description of one new species from Brazil, Zootaxa 4991 (2), pp. 201-246: 215-217

publication ID

https://doi.org/10.11646/zootaxa.4991.2.1

publication LSID

lsid:zoobank.org:pub:62BE9E59-1DAB-425F-A322-4E48F12391C6

DOI

http://doi.org/10.5281/zenodo.5092222

persistent identifier

http://treatment.plazi.org/id/039487BC-5126-FFBA-9DEE-9E6DFB45FE7C

treatment provided by

Plazi

scientific name

Patrera virgata ( Keyserling, 1891 )
status

 

Patrera virgata ( Keyserling, 1891)  

Figs 7A–D View FIGURE 7 ; 27F View FIGURE 27

Anyphaena virgata Keyserling, 1891: 92   , fig 54 (Syntypes two males and four females from Fazenda Calvário, Serra Vermelha, Itaocara (21°40’44”S; 42°4’55”W), Rio de Janeiro, Brazil, Prof. Göldi leg., deposited in BMNH 1890.7.1.595-600, examined). Lectotype male in BMNH 1890.7.1.595 and paralectotypes one male and four females in BMNH 1890.7.1.626–630, here designated).

Teudis virgatus: Petrunkevitch, 1911: 519   .

Patrera virgata: Brescovit, 1997: 33   .

Other material examined. None.

Diagnosis. Patrera virgata   resembles P. concolor   by the male having conspicuous retrolateral tibial apophysis and flattened median apophysis in the male palp (as in Figs 17C, D View FIGURE 17 , 18A, B View FIGURE 18 ), and having large hood and broad atrium in the female epigynum (as in Figs 17F View FIGURE 17 , 18C View FIGURE 18 ). They differ by the inverted U-shaped sperm duct in the tegulum and by the retrolateral tibial apophysis enlarged at tip and presenting two laminar, triangular projections ( Figs 7A, B View FIGURE 7 ) in the male palp. Females differ by the epigynum with semicircular hood and part of the copulatory ducts ventrally arched, shown by transparency ( Figs 7C, D View FIGURE 7 ).

Description. Male (Lectotype). Carapace reddish yellow with orange paramedian bands. Chelicerae, labium and endites reddish brown. Sternum and legs yellow. Abdomen yellow graying dorsally, with two blackish paramedian bands, ventrally light gray with cream spinnerets. Total length 4.8, carapace length 2.2, width 1.7. Clypeus height 0.08. Eye diameters and interdistances: AME 0.07, ALE 0.14, PME 0.14, PLE 0.15; AME–AME 0.06, AME–ALE 0.05, PME–PME 0.12, PME–PLE 0.12, ALE–PLE 0.06. Chelicerae 1.45 long, five promarginal teeth, six retromarginal denticles. Leg measurements: leg I—femur 3.0/ patella 1.0/ tibia 3.55/ metatarsus 3.15/ tarsus 1.3/ total 12.0; II—2.6/ 0.9/ 3.0/ 2.7/ 1.15/ 10.15; III—1.7/ 0.7/ 1.4/ 1.9/ 0.6/ 6.3; IV—2.5/ 0.75/ 2.4/ 3.1/ 0.65/ 9.4. Leg spination: I— II—tíbia v2-2-0, p1-1-1, r1-1-1, metatarsus v2-1-0, p1-1-1, r1-1-1; III—tibia v2-2-0, p1-1-0, r1-1-0, metatarsus v2-2-2, p1-1-1, r1-1-1; IV—tibia v2-2-1, p1-1-0, r1-1-0, metatarsus v2-2-2, p1-1-1, r1-1-1. Abdomen: length 2.70, epigastric furrow 1.3 from tracheal spiracle, spiracle 1.4 from base of spinnerets. Palp: tibia straight, slightly longer than the cymbium; cymbium oval; tegulum oval; tegular projection short, almost completely covered by the tegulum; elongated, subapical median apophysis; slender embolus, originating at the base of the tegulum ( Figs 7A, B View FIGURE 7 ).

Female (BMNH 1890.7.1.597). Colorations as in male, except abdomen lighter. Total length 5.4, carapace length 2.3, width 1.8. Clypeus height 0.06. Eye diameters and interdistances: AME 0.08, ALE 0.15, PME 0.14, PLE 0.15; AME–AME 0.05, AME–ALE 0.05, PME–PME 0.12, PME–PLE 0.12, ALE–PLE 0.06. Chelicerae 1.05 long, five promarginal teeth, six retromarginal denticles. Leg measurements: leg I—femur 2.3/ patella 0.9/ tibia 2.4/

metatarsus 2.0/ tarsus 1.0/ total 8.6; II—2.1/ 0.8/ 2.05/ 1.7/ 0.8/ 7.45; III—1.5/ 0.7/ 1.1/ 1.55/ 0.5/ 5.35; IV—2.2/ 0.8/ 1.8/ 2.4/ 0.7/ 7.9. Leg spination: I—tibia v2-2-0, p0, r0, metatarsus v2-0-0, p0, r0; II—tibia v2-2-0, p1-1-1, r0, metatarsus v2-0-0, p0, r0; III—tibia v2-1-0, p1-1-1, r1-1-1, metatarsus v2-2-2, p1-1-0, r1-1-0; IV—tibia v2-2-2, p1- 1-0, r1-1-0, metatarsus v2-2-2, p1-1-1, r1-1-1. Abdomen: length 3.0, epigastric furrow 0.9 from tracheal spiracle, spiracle 1.0 from base of spinnerets. Epigynum: lateral borders connected distally; large and deep atrium; internally with elongated, coiled copulatory ducts; elongated and globose seminal receptacles, in the proximal area of the copulatory ducts; globose spermathecae; fertilization ducts shorter than spermathecae, curved and basal ( Figs 7C, D View FIGURE 7 ).

Distribution. Known only to the type locality, in the state of Rio de Janeiro, Brazil ( Fig. 27F View FIGURE 27 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Anyphaenidae

Genus

Patrera

Loc

Patrera virgata ( Keyserling, 1891 )

Oliveira, Luiz Fernando M. & Brescovit, Antonio D. 2021
2021
Loc

Patrera virgata: Brescovit, 1997: 33

Brescovit, A. D. 1997: 33
1997
Loc

Teudis virgatus:

Petrunkevitch, A. 1911: 519
1911
Loc

Anyphaena virgata

Keyserling, E. 1891: 92
1891