Tupirinna ibiapaba Xavier & Bonaldo 2021, sp. nov.

Tupirinna ibiapaba sp. nov.

Figs 5C–D, 14A–D

urn:lsid:zoobank.org:act: E1C69A57-5E52-4D1B-8563-E309ABE3F12E

Type material. Holotype: ♂ from Sítio do Alemão (03°50’50.7”S, 40°53’18.5”W), Chapada do Ibiapaba, Ubajara, Ceará, Brazil, 21.X.2012, leg. A.M. DeSouza et al. (UFMG 14852). Paratype: BRAZIL: Ceará: Ubajara, Parque Nacional de Ubajara, Trilha da Samambaia (03°50’19.4”S, 40°53’58.6”W), 25.X.2011, leg. L.S. Carvalho et al., 1♀ (CHNUFPI 2402).

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

Diagnosis. Males of Tupirinna ibiapaba sp. nov. differ from those of other species with the embolar process positioned dorsally in relation to the embolus and the dorsal lobe of RTA represented by a small retro-apical hump (T. trilineata and T. palmares sp. nov.) by the combined presence of a long, filiform embolus, VTA as long as wide, and by the absence of a tegular retroapical projection (Fig. 14A, B). Females resemble those of T. trilineata by the incomplete, recurved margins of the copulatory opening, differing by the sub-triangular copulatory pouch (Fig. 14C, D).

Description. Male holotype (UFMG 14852). Carapace orange, with brown stripe extending over ocular area, and brown stripes laterally. Chelicerae orange. Labium brown, with top edge pale brown. Endites orange. Sternum yellow, with borders and anterior lateral excavations brown. Legs yellow. Abdomen dorsum yellow, with one pair of black longitudinal spots in cardiac area; in median region, two pairs of black spots on each side; subsequently one black subrectangular spot, yellow in the middle portion. Contour of spinnerets black; venter yellow (Fig. 5C). Total length 4.91. Carapace length 2.74, width 2.28, height 0.66. Clypeus height 0.13. Eye diameters and interdistances: anterior row 0.72, posterior row 0.77, MOQ: length 0.41, anterior width 0.38, posterior width 0.39, AME 0.14, PME 0.12, ALE 0.14, PLE 0.10, AME-AME 0.12, AME-ALE 0.06, PME-PME 0.15, PME-PLE 0.13, ALE-PLE 0.04. Chelicerae: length 1.55 with only 2 promarginal teeth. Sternum length 1.34, width 1.32. I: missing, II: fe 2.08, pa 0.90, ti 2.16, mt 1.94, ta 1,00. III: fe 2.38, pa 0.88, ti 1.88, mt 2.14, ta 1.03. IV: fe 2.52, pa 0.92, ti 2.11, mt 3.20, ta 1.10. Abdomen: length 2.35, width 1.52. Leg spination: No leg I. II – femur d1-1-1, p0-0-1; tibia v2-2-2; metatarsus v2-2-0. III – femur d1-1-1, p0-0-1, r0-0-1; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p1-1-1, r1-1-1, v2-2-2. IV – femur d1-1-1, p0-0-1, r0-0-2; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p1-1-1, r1-1-1, v2-2-2. Palp: tibia shorter than half cymbial length; ventral lobe of retrolateral tibial apophysis short, without apical spur; dorsal lobe represented by small hump; ventral tibial apophysis curved apically, with small retrolateral process; embolus long, embolar basal process present; tegular process absent (Fig. 14A, B).

Female paratype (CHNUFPI 2402). Carapace orange, with brown stripe extending over ocular area, and black stripes laterally. Chelicerae orange. Labium brown. Endites yellow. Sternum and anterior lateral excavations yellow, with borders brown. Legs yellow. Abdomen dorsum grey, with spots as in male; venter yellow (Fig. 5D). Total length 5.51. Carapace length 2.63, width 2.22, height 1.14. Clypeus height 0.17. Eye diameters and interdistances: anterior row 0.69, posterior row 0.76, MOQ: length 0.32, anterior width 0.38, posterior width 0.42, AME 0.15, PME 0.12, ALE 0.12, PLE 0.12, AME-AME 0.12, AME-ALE 0.07, PME-PME 0.15, PME-PLE 0.10, ALE-PLE 0.03. Chelicerae: length 1.20 with 4 promarginal and 2 retromarginal teeth. Sternum length 1.44, width 1.37. Leg I: femur (fe) 1.88, patella (pa) 0.99, tibia (ti) 1.89, metatarsus (mt) 1.91, tarsus (ta) 0.84. II: missing. III: fe 1.63, pa 0.98, ti 1.95, mt 2.26, ta 0.97. IV: fe 2.96, pa 1.03, ti 2.33, mt 3.03, ta 1.08. Abdomen: length 2.74, width 1.89. Leg supination: No leg I. II – femur d1-1-1, p0-0-1; tibia v2-2-2; metatarsus v2-2-0. III – femur d1-1-1, p0-0-1, r0-0-1; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p1-1-1, r1-1-1, v2-2-2. IV – femur d1-1-1, p0-0-1, r0-0-2; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p1-1-1, r1-1-1, v2-2-2. Epigynum: copulatory opening positioned anteriorly; posterior vulval plate weakly developed; secondary spermathecae absent (Fig. 14C, D).

Material examined. Only the type material.

Distribution. Known only from the type locality, in the western state of Ceará, Brazil (Fig. 26).