Extraordinarius angusyoungi spec. nov.

Figs 17−23

Type material. Holotype: BRAZIL: Rio de Janeiro: ♀, Fazenda Ranchinho da Roça, Petrópolis [‑22.4500, ‑43.2000], 15−16 August 2001, Equipe Biota leg. (IBSP 43247).

Etymology. The species name honors Angus Young, lead guitarist, songwriter and co-founder of the Australian rock band AC/DC. He is best known for his stage schoolboy uniform outfits and energetic performances; name in genitive case.

Diagnosis. Females of E. angusyoungi spec. nov. resemble those of E. rickalleni (Rheims 2019: figs 62−64) and E. alicecooperi spec. nov. (Figs 14−16) by the epigyne with MS lacking anterior scape, but are distinguished by the rectangular shape of the MS (inverted T-shaped in E. alicecooperi spec. nov. and ovoid in E. rickalleni) and by the vulva with packed structures running almost parallel to each other (strongly converging towards each other in both other species) (Figs 21−23).

Description. Female (holotype): Prosoma brown; fovea very slightly darker than prosoma; eye borders black. Chelicerae brown. Legs and palps orange brown, lighter than prosoma. Labium and endites brown, distally pale brownish cream colored. Sternum orange brown with brown margins. Opisthosoma brownish gray; dorsally with brown pattern of irregular shaped marks on anterior half and laterally, and five median chevron-like marks down posterior half; ventrally with few scattered brown spots laterally and median U‑shaped line of muscle impressions. Spinnerets orange brown, distally yellowish brown (Figs 17−18). Total length 14.5. Prosoma 5.8 long, 5.0 wide. Opisthosoma 8.2 long, 5.0 wide. Eyes: diameters: 0.34, 0.30, 0.21, 0.30; interdistances: 0.35, 0.32, 0.58, 0.58, 0.25, 0.15. Legs (4213): I: 13.4 (4.0, 2.5, 3.3, 2.7, 0.9); II: 13.5 (4.2, 2.6, 3.2, 2.6, 0.9); III: 11.1 (3.5, 2.0, 2.4, 2.3, 0.9); IV: 14.3 (4.2, 1.9, 3.2, 3.8, 1.2). Epigyne: EF slightly wider than long; LL with lateral groves strongly diverging anteriorly; MS roughly one and a half times wider than long (Figs 19, 21). Vulva: double helix with 9−10 twists; FD antero‑laterad (Figs 20, 22−23).

Male: unknown.

Distribution. Only known from the type locality, in Rio de Janeiro, southeastern Brazil (Fig. 31).