Patrera concolor ( Keyserling, 1891 ) Oliveira & Brescovit, 2021

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 : 231-234

Patrera concolor ( Keyserling, 1891) new combination

Figs 17A–G ; 18A–D ; 27F

Anyphaena concolor Keyserling 1891: 120 , plate 3, fig. 80 (Male holotype from Alto da Serra , Nova Friburgo (22°16’55”S;

42°31’51”W), Rio de Janeiro, Brazil, Prof. Göldi leg., deposited in BMNH). Anyphaena variabilis Keyserling, 1891: 123 , plate 4, fig. 84. (Two females syntypes from Alto da Serra, Nova Friburgo (22°16’55”S; 42°31’51”W), Rio de Janeiro, Brazil, Prof. Göldi leg., deposited in BMNH; Mello-Leitão, 1925: 457

(Syn.). Sillus concolor: Petrunkevitch, 1911: 510 . Teudis variabilis: Petrunkevitch, 1911: 519 . Teudis concolor: Mello-Leitão, 1925: 457 . Osoriella pallidoemanu Mello-Leitão, 1926: 10 , figs 9-10 (Male holotype from Santos (23°57’52”S; 46°20’00”W), São Paulo,

Brazil, W. S. Bristowe leg., deposited in MNRJ 181, examined, lost in the 2018 fire). New synonymy.

Other material examined. BRAZIL. Santa Catarina: Rancho Queimado (27°40′22″S 49°1′19″W), 1♂, 2♀, 8– 14.X.1994, L.A. Moura & A.B. Bonaldo leg. (IBSP 212646) .

Diagnosis. Patrera concolor resembles P. virgata by the conspicuous retrolateral tibial apophysis and flattened median apophysis in the male palp (as in Figs 7A, B ), and by having large hood and broad atrium in the female epigynum (as in Figs 7C, D ). They differ by the sperm duct forming a sinuous route in the tegulum and retrolateral tibial apophysis tapering to the distal region, with a very wide base in the male palp. ( Figs 17C–E , 18A, B ). Females can be distinguished by the epigynum with large, triangular hood and parallel, narrow ventral copulatory ducts, as shown by transparency ( Figs 17F, G , 18C, D ).

Description. Male (IBSP 212646). Carapace yellowish orange; chelicerae yellow; labium and endites orange. Sternum yellow with orange borders. Legs yellow except coxae I, orange. Abdomen with dorsal spots, ventrally cream ( Fig. 17A ). Total length 7.7, carapace length 3.4, width 2.5. Clypeus height 0.10. Eye diameters and interdistances: AME 0.10, ALE 0.18, PME 0.16, PLE 0.16; AME–AME 0.06, AME–ALE 0.06, PME–PME 0.10, PME–PLE 0.12, ALE–PLE 0.04. Chelicerae 1.7 long, four promarginal teeth, five retromarginal denticles. Leg measurements: leg I—femur 5.5/ patella 1.8/ tibia 6.6/ metatarsus 6/ tarsus 2.6/ total 22.5; II—4.9/ 1.6/ 5.5/ 4.8/ 2/ 18.8; III—3/ 1.2/ 2.5/ 3.2/ 1.1./ 11; IV—4.2/ 1.3/ 3.8/ 5.2/ 1.3/ 15.8. Leg spination: I— II—tibia v2-2-0, p1-1- 1, r1-1-1, metatarsus v2-1p-0, p1-1-0, r1-1-0; III—tibia v2-2-0, p1-1-0, r1-1-0, metatarsus v2-2-2, p1-1-2, r1-1-2; IV—tibia v2-2-2, p1-1-1, r1-1-1, metatarsus v2-2-2, p1-1-1, r1-1-1. Abdomen: length 4.6, epigastric furrow 1.3 from tracheal spiracle, spiracle 1.6 from base of spinnerets. Palp: tibia straight, as long as cymbium; cymbium oval; tegulum oval, with sperm duct sinuous at third basal area, forming an elongated “S-shaped”; subtegular projection short, covered by the tegulum; subdistal, flattened median apophysis, slightly curved at apex; slender embolus, with narrow base ( Figs 17C–E , 18A, B ).

Female (IBSP 212646). Colorations as in male ( Fig. 17B ). Total length 10.2, carapace length 3.6, width 2.8. Clypeus height 0.10. Eye diameters and interdistances: AME 0.10, ALE 0.18, PME 0.18, PLE 0.17; AME–AME 0.08, AME–ALE 0.08, PME–PME 0.16, PME–PLE 0.16, ALE–PLE 0.06. Chelicerae 1.4 long, four promarginal teeth, five retromarginal denticles. Leg measurements: leg I—femur 4.2/ patella 1.7/ tibia 4.7/ metatarsus 3.9/ tarsus 1.8/ total 16.3; II—3.9/ 1.3/ 4/ 3.6/ 1.6/ 14.4; III—2.6/ 1.1/ 2.1/ 2.6/ 1.0/ 9.4; IV—3.7/ 1.4/ 3.3/ 4.1/ 1.3/ 13.8. Leg spination: I— II—tibia v2-2-0, p1-1-1, r1-1-1, metatarsus v2-0-0, p1-0-0, r1-0-0; III— IV—tíbia v2-2-0, p1-1-0, r1- 1-0, metatarsus v2-2-2, p1-1-1, r1-1-1. Abdomen: length 6.5, epigastric furrow 2.1 from tracheal spiracle, spiracle 2.3 from base of spinnerets. Epigynum: lateral borders short, not connected distally, forming an anterior curvature; large, deep atrium; internally with elongated, parallel copulatory ducts; small seminal receptacles, contiguous to the spermathecae; globose spermathecae; fertilization ducts elongated, almost the size of the spermathecae, curved, basal ( Figs 17F, G , 18C, D ).

Distribution. Southeast and South of Brazil ( Fig. 27F ).

Figures

FIGURE 7A–D. Patrera virgata (Keyserling, 1891): Male (BMNH 1890.7.1.595): A left palp, ventral view; B same, retrolateral view. Female (BMNH 1890.7.1.626): C epigynum, ventral view; D epigynum, dorsal view. Abbreviations: A, atrium; CD, copulatory ducts; E, embolus; FD, fertilization ducts; H, hood; MA, median apophysis; RTA, retrolateral tibial apophysis; S, spermathecae; SR, seminal receptacles; T, tegulum. Scale bars: A–D 0.25mm.

FIGURE 17A–G. Patrera concolor (Keyserling, 1891). Male (IBSP 212646):A habitus, dorsal view; C left palp, ventral view; D same, retrolateral view; E same, dorsal view. Female (IBSP 212646): B habitus, dorsal view; F epigynum; ventral view; G epigynum, dorsal view. Abbreviations: A, atrium; CD, copulatory ducts; FD, fertilization ducts; H, hood; LB, lateral borders; MA, median apophysis; RTA, retrolateral tibial apophysis; S, spermathecae; SR, seminal receptacles; T, tegulum. Scale bars: A, B 3.5mm; C 0.5mm; D 0.73mm; E 0.66mm; F, G 0.25mm.

FIGURE 18A–D. Patrera concolor (Keyserling, 1891). Male (IBSP 212646): A left palp, ventral view; B same, retrolateral view. Female (IBSP 212646): C epigynum, ventral view; D epigynum, dorsal view. Abbreviations: A, atrium; CD, copulatory ducts; CO, copulatory opening; E, embolus, FD, fertilization ducts; H, hood; LB, lateral borders; MA, median apophysis; RTA, retrolateral tibial apophysis; S, spermathecae; SR, seminal receptacles; T, tegulum. Scale bars: A–D 0.25mm.

FIGURE 27A–F. Distribution map of Patrera species.