Tupirinna urucu Xavier & Bonaldo 2021, sp. nov.

Tupirinna urucu sp. nov.

Figs 7E, 13E, F

urn:lsid:zoobank.org:act: 7B30C2A3-CACF-4DB8-8841-92D886D3D55A

Type material. Holotype: ♂ from Base de Operações Geólogo Pedo de Moura (04°52’07.6’’S, 65°15’53.6’’W), Porto Urucu, Coari, Amazonas, Brazil, 1.X.2004, leg. A.B. Bonaldo, D.F. Candiani & J.A. Marin-Fernandes, pitfall traps (MPEG 35483).

Etymology. The specific name is a noun in apposition after the type locality.

Diagnosis. Males of Tupirinna urucu sp. nov. differ from those of other species with the ventral lobe of the RTA divided basally (T. coari sp. nov. and T. zebra sp. nov.), as follows: from those of T. coari sp. nov. by the conical, elongated embolus, which is directed retro-apically (Fig. 13E, F), and from those of T. zebra by the lamellate dorsal process of the VL, which is sub-rectangular in ventral view.

Description. Male holotype (MPEG 35483). Carapace orange, with brown median stripe extending over ocular area, and dark brown stripes laterally. Chelicerae dark brown. Labium brown. Endites brown. Sternum yellow, with borders and anterior lateral excavations brown. Legs yellow. Abdomen dorsum yellow, with two longitudinal brown spots, connected in posterior region; followed by huge brown subretangular spot. Contour of spinnerets brown; venter white, with brown rectangular spot (Fig. 7E). Total length 4.65. Carapace length 2.20, width 2.02, height 1.07. Clypeus height 0.23. Eye diameters and interdistances: anterior row 0.68, posterior row 0.79, MOQ: length 0.41, anterior width 0.40, posterior width 0.43, AME 0.16, PME 0.15, ALE 0.16, PLE 0.14, AME-AME 0.07, AME-ALE 0.05, PME-PME 0.14, PME-PLE 0.13, ALE-PLE 0.07. Chelicerae: length 1.19, with 4 promarginal and 3 retromarginal teeth. Sternum length 1.18, width 1.21. Leg I: femur (fe) 2.19, patella (pa) 0.89, tibia (ti) 2.32, metatarsus (mt) 2.25, tarsus (ta) 0.93. II: fe 2.18, pa 0.72, ti 2.20, mt 2.19, ta 1.11. III: fe 2.32, pa 0.84, ti 2.07, mt 2.38, ta 1.19. IV: fe 2.60, pa 0.71, ti 2.14, mt 3.12, ta 1.11. Abdomen: length 2.31, width 1.39. Leg spination: I – femur d1-1-1, p0-0-1; tibia v2-2-2; metatarsus v2-2-0. II – femur d1-1-1, p0-0-1; tibia v2-2-2; metatarsus v2-2-0. III – femur d1-1-1, p0- 1-1, r0-1-1; tibia p1-1-0, r1-1-0, v2-2-2; metatarsus v2-2-2. IV – femur d1-1-1, p0-1-1, r0-0-1; tibia p1-1-0, r1-1-0, v2-2-2; metatarsus p1-1-1, r1-1-1, v2-2-2. Palp: tibia longer than half cymbial length; ventral lobe of retrolateral tibial apophysis with apical spur; dorsal lobe absent; ventral tibial apophysis subquadrangular, curved apically; embolus long, embolar basal process present; tegular process absent (Fig. 13E, F).

Female: Unknown

Material examined. Only the type material.

Distribution. Known only from the type locality (Fig. 25).