Nopsma nauta Villarreal-Blanco, Martínez & Eyes-Escalante, 2025, sp. nov.

Nopsma nauta sp. nov. urn:lsid:zoobank.org:act: 77EC6745-0637-4547-82B3-59A26F8A165F Figs 4, 6A–B, 9C–D, 10 Diagnosis Nospsma nauta sp. nov. is similar to N. leticia by having an oval tegulum with an embolus almost as long as the palpal tibia but can be distinguished by the very elongated cymbium more than 5 × as long as wide (3.2 × as long as width in N. leticia) and the elongated small oval tegulum only as 1 /6 the length of the cymbium (¼ of length of the cymbium in N. leticia) (Sánchez-Ruiz et al. 2021: 385, fig. 2c–d; Fig. 4E–G). Etymology The specific epithet is a noun in apposition taken from the type locality. Type material Holotype PERU • ♂; Loreto Department, km 25 road to Nauta; May 2005; A. Catenazzi leg.; MUSM-ENT 0506879. Description Male (holotype (MUSM-ENT 0507101)) COLORATION (Fig. 4A–D). Carapace orange-brownish with remarkable dorsal pattern form by several black dots. Chelicerae, endites and labium light orange, sternum orange-brownish, lighter in edges. Legs orange. Abdomen dorsally dark gray, without noticeable pattern (Fig. 4A). Ventrally gray darker close to spinnerets. Spinnerets yellow. MEASUREMENTS. Total length 4.33, carapace length 1.94, width 1.64, height 0.54. Clypeus height 0.35. Eye diameters and interdistances: PME 0.22, PME–PME 0.45. Chelicerae length 0.57. Sternum length 1.26, width 1.11. Legs: I: 6.78; II: 6.17; III: 5.90; IV: 7.92. Abdomen length 2.32. PALP. Cymbium very long, 2 × as long as palpal tibia; tegulum oval, slightly longer than width, embolus almost as long as palpal tibia, with membranous keel in distal third (Figs 4E–G, 6A–B, 9C–D). Female Unknown. Distribution Known only for the type locality in Amazonas, Peru (Fig. 10).