Patrera recentissima ( 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 : 234-236

Patrera recentissima ( Keyserling, 1891) , new combination

Figs 19A–G ; 20A–D ; 21A–F ; 27F

Anyphaena recentissima Keyserling, 1891: 121 , pl. 4, fig. 81 (Holotype male from Blumenau (26°54’32”S; 49°04’20”W), Santa Catarina, Brazil, Hetschko leg., deposited in BMNH, examined).

Teudis recentissimus: Petrunkevitch, 1911: 518 .

Other material examined. BRAZIL. Santa Catarina: Blumenau (26°54’32”S; 49°04’20”W), Parque Municipal Nascentes do Garcia , 1♂, 21-28.I.2003, Equipe Biota leg. (IBSP 139721); Rancho Queimado (27°40’22”S; 49°01’19”W), 1♂, 09–13.X.1995, A.A. Lise et al. leg. (MCTP 6966); Rio Grande do Sul: Cambará do Sul (29°02’52”S; 50°08’42”W) 8♂, 8♀, 25.XI.1993, E.H. Buckup leg. (MCN 24503) ; 1♂, 1♀, 25.XI.1993, E.H. Buck- up leg. (IBSP 258336); 5♂, 8♀, 19–21.XII.1994, A.B. Bonaldo leg. (MCN 25925) ; 2♂, 5♀, 26.XI.1993, A.B. Bon- aldo leg. (MCN 24507) ; 1♂, 24.XI.1993, E.H. Buckup leg. (MCN 24509) ; 1♂, 1♀, 19-21.XII.1994, A.B. Bonaldo leg. (IBSP 258337); Floresta Nacional de São Francisco de Paula (29°25’22”S; 50°23’11”W) , 1♂, 2003–2004, R. Baldissera leg. (IBSP 144516); 1♂, 2003–2004, R. Baldissera leg. (IBSP 144512).

Diagnosis. Males of Patrera recentissima are easily distinguished from the remaining species by the filiform median apophysis and embolus originating markedly from the base of the tegulum, forming a wide curvature in the male palp ( Figs 19C , 20A , 21B, C ). Females are diagnosed by the epigynum with triangular hood and copulatory ducts comma-shaped as seem by transparence ( Figs 19F, G , 20C, D , 21F ).

Description. Male (MCN 24503). Carapace and legs yellow. Abdomen gray dorsally; ventrally cream. Chelicerae dark brown ( Fig. 19A ). Total length 7.3, carapace length 3.2, width 2.6. Clypeus height 0.13. Eye diameters and interdistances: AME 0.08, ALE 0.12, PME 0.12, PLE 0.12; AME–AME 0.06, AME–ALE 0.06, PME–PME 0.16, PME–PLE 0.12, ALE–PLE 0.06. Chelicerae 1.1 long, four promarginal teeth, five retromarginal denticles ( Fig. 21A ). Leg measurements: leg I—femur 4.1/ patella 1.2/ tibia 4.85/ metatarsus 4.5/ tarsus 2.35 total 17.0; II—3.6/ 1.1/ 4.0/ 3.8/ 1.83/ 14.33; III—2.4/ 1.0/ 1.8/ 2.25/ 1.0/ 8.45; IV—3.48/ 1.1/ 3.0/ 3.9/ 1.26/ 12.74. Leg spination: I—tibia v2-2-2, p1-1-1, r1-1-1, metatarsus v2-1-0, p1-1-0, r1-1-0; II—tibia v2-2-2, p1-1-1, r1-1-1, metatarsus v2-1-0, p1-1-1, r1-1-1; III—tibia v2-2-0, p1-0-1, r0-1-1, metatarsus v2-2-2, p1-1-1, r1-1-1; IV—tibia v2-2-2, p1- 1-1, r1-1-1, metatarsus v2-2-2, p1-1-1, r1-1-1. Abdomen: length 4.0, epigastric furrow 1.2 from tracheal spiracle, spiracle 1.4 from base of spinnerets. Palp: tibia shorter than cymbium, not curved; tibial retrolateral apophysis short, curved, forming an internal fold, with a scaly, striated border; cymbium oval; tegulum oval, with sperm duct slightly sinuous, near the retrolateral margin; tegular projection short, in the distal border of tegulum; median apophysis, subdistal, curved at apex; very slender embolus, with narrow base ( Figs 19C–D , 20A, B , 21B–E ).

Female (MCN 20503). Carapace brownish, darker in the cephalic region ( Fig. 19B ). Chelicerae dark brown. Labium and endites brown. Sternum yellowish. Legs yellow, darkest from tibiae to tarsi. Abdomen grayish; ventrally yellow ( Fig. 19B ). Total length 7.7, carapace length 3.2, width 2.1. Clypeus height 0.14. Eye diameters and interdistances: AME 0.08, ALE 0.12, PME 0.12, PLE 0.12; AME–AME 0.10, AME–ALE 0.08, PME–PME 0.20, PME–PLE 0.18, ALE–PLE 0.10. Chelicerae 1.2 long, four promarginal teeth, six retromarginal denticles. Leg measurements: leg I—femur 3.6/ patella 1.0/ tibia 3.9/ metatarsus 3.05/ tarsus 1.6/ total 13.15; II—3.0/ 1.2/ 3.33/ 2.7/ 1.35/ 11.58; III—2.3/ 0.9/ 1.7/ 2.1/ 0.8/ 7.8; IV—3.3/ 1.0/ 2.85/ 3.5/ 1.0/ 11.65. Leg spination: I—tibia v2-2-0, metatarsus p1-0-1, r1-0-1; II—tibia v2-0-0, p1-0-1, r1-0-1, metatarsus v2-0-0, p1-1-0, r1-1-0; III—tibia v2-2-0, p1-1-0, r1-1-0, metatarsus v2-2-2, p1-1-1, r1-1-1; IV—tibia v2-2-2, p1-1-0, r1-1-0, metatarsus v2-2-2, p1-1-1, r1- 1-1. Abdomen: length 4.3, epigastric furrow 1.4 from tracheal spiracle, spiracle 1.1 from base of spinnerets. Epigynum: lateral borders narrow, connected laterally with the anterior border of epigynal plate; small, triangular atrium; sclerotized hood; internally with short and convolute copulatory ducts; anterior, globose seminal receptacles, in the proximal area of the copulatory ducts; oval spermathecae; fertilization ducts shorter than spermathecae, curved, basal ( Figs 19F, G , 20C, D , 21F ).

Variation. Males (n=10): total length 4.8–8.1; carapace length 2.1–3.4; femur I length 3.3–4.7. Females (n=10): total length: 6.4–9.6; carapace length 2.7–3.8; femur I length 3.1–4.0.

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

Figures

FIGURE 19A–G. Patrera recentissima (Keyserling, 1891). Male (MCN 24503): A habitus, dorsal view; C left palp, ventral view; D same, retrolateral view; E same, dorsal view. Female (MCN 24503): B habitus, dorsal view; F epigynum, ventral view; G epigynum, dorsal view. Abbreviations: E, embolus; H, hood; MA, median apophysis; RTA, retrolateral tibial apophysis. Scale bars: A, B 3.5mm; C–E 0.66mm; F, G 0.25mm.

FIGURE 20A–D. Patrera recentissima (Keyserling, 1891). Male (MCN 24503): A left palp, ventral view; B same, retrolateral view. Female (MCN 24503): C epigynum, ventral view; D epigynum, dorsal view. Abbreviations: A, atrium; CD, copulatory ducts; CO, copulatory opening; E, embolus; FD, fertilization ducts; H, hood; MA, median apophysis; RTA, retrolateral tibial apophysis; S, spermathecae; SR, seminal receptacles; ST, subtegulum; T, tegulum. Scale bars: A–D 0.25mm.

FIGURE 21A–F. Patrera recentissima (Keyserling, 1891). Male (MCN 25925): A chelicerae, ventral view; B left palp, ventral view; C same, ventral view, distal area, detail; D same, ventral view; E same, retrolateral view. Female (MCN 25925): F epigynum, ventral view. Abbreviations: E, embolus; H, hood; LB, lateral borders; MA, median apophysis; RTA, retrolateral tibial apophysis; T, tegulum. Scale bars: A 0.3mm; B 0.5mm; C–F 0.1mm.

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