Stethorrhagus papilio Xavier, Brescovit & Bonaldo, 2025, sp. nov.

Stethorrhagus papilio sp. nov. urn:lsid:zoobank.org:act: 04E89F12-3F4B-414B-9D6A-D79DBE8797CF Figs 45, 51 Diagnosis Females are similar to those of S. hyula, S. roraimae and S. nigrinus by the epigynal plate without VEP, with CO disposed anteriorly in relation to SI (Figs 7C, 23C–D, 44C–D, 45C–F; Bonaldo & Brescovit 1994: figs 19c–d, 21b–c, 23a–b). They differ from those of S. hyula by the epigynal plate without a posterior median half-moon-shaped sclerotization (Fig. 45C–F) (present in S. hyula Bonaldo & Brescovit 1994: fig. 19c); from those of S. roraimae by the relatively large CO, with its width four times smaller than the distance between the CO and the posterior margin of the epigynal plate (Fig. 45C–F) (small CO, with width nearly 12 times smaller than the distance between the CO and the posterior margin of the epigynal plate in S. roraimae (Fig. 7C; Bonaldo & Brescovit 1994: fig. 23a) and from those of S. nigrinus by the posterior border of CO straight; CD’s dorsal reinforcement rods surpassing CO anteriorly (Fig. 45C–F) (posterior border of CO sinuous; CD’s dorsal reinforcement rods not surpassing CO anteriorly S. nigrinus (Fig. 44C–D; Bonaldo & Brescovit 1994: fig. 21b). Etymology The specific name is a noun in apposition in reference to the lepidopteran genus Papilio Linnaeus, 1758, since the median sector of the epigynum (as in Fig. 45C) resembles a butterfly in dorsal view. Material examined Holotype COLOMBIA • ♀; Nariño, from 25 mi. SW of Mocoa; [1°08′45″ N, 76°38′16″ W]; 3 Mar. 1955; E.S. Shinger and E.S. Ross leg.; CAS 9119043. Description Male Unknown. Female (holotype – CASENT9119043) COLORATION. Carapace orange-brown, dark in cephalic area. Sternum, endites, labium and legs yellow. Chelicerae brown. Abdomen gray with white dorsal spots (Fig. 45A) venter and spinnerets cream. Sternum with deep sternal excavations (Fig. 45B). MEASUREMENTS. Total length 7.71, prosoma length 3.76, width 2.88. Clypeus 0.30. I: femur 3.25/ patella 1.22/ tibia 2.88/ metatarsus 2.67/ tarsus 1.60/ total 11.62; II: 3.20/ 1.29/ 2.75/ 2.65/ 1.50/ 11.39; III: 2.90/ 1.30/ 2.29/ 2.61/ 1.31/ 10.41; IV: 3.61/ 1.30/ 3.18/ 3.94/ 1.54/ 13.57. Eye diameters: AME 0.20, ALE 0.19, PME 0.19, PLE 0.18. Chelicerae 1.68 long, with three promarginal teeth and five retromarginal denticles. LEG SPINATION. I – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v2-1p-2-2; metatarsus d0, p0, r0, v2-2-0. II – femur d1-1-0, p0-1-1, r; tibia d0, p0, r0, v1r-2-2-0; metatarsus d0, p0, r0, v2-2-0. III – femur d1-1-1, p0-0-1, r0-0-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-1, r1-1-1, v2-2-1. IV – femur d1-1-1, p0-1-1, r0-1-1; tibia d0-1-0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-1, r1-1-1, v2-2-2. EPIGYNUM. CO slit-shaped, disposed anteriorly in relation to SI, posterior border of CO straight, CD’s dorsal reinforcement rods surpassing CO anteriorly, VEP absent, PVP almost as wide as long, covering almost entire SI, posterior margin of PVP rounded and protruding (Fig. 45C–F). Distribution Known only from the type locality (Fig. 51).