Tupirinna araguaia, Xavier & Bonaldo, 2021

Xavier, Cláudia & Bonaldo, Alexandre B., 2021, Taxonomic revision of the genus Tupirinna Bonaldo, 2000 (Araneae: Corinnidae: Corinninae), Zootaxa 5004 (2), pp. 201-250 : 216-217

Tupirinna araguaia sp. nov.

Figs 3C, D , 9E–H

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Type material. Holotype: ♂ from Serra das Andorinhas (06°13’10.47”S, 48°26’17.97”W), São Geraldo do Araguaia, Pará, Brazil, 30.X–7.XI.2011, leg. A.B. Bonaldo et al., collected with pitfall traps ( MPEG 35480 ) . Paratypes: Same data as the holotype, 1♀ ( MPEG 35481 ), 1♂ ( MPEG 35482 ) .

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

Diagnosis. Males of Tupirinna araguaia sp. nov. differ from those of all other species with ventral lobe of RTA not divided basaly ( T. rosae , T. platnicki sp. nov., T. regiae sp. nov. and T. mutum sp. nov.) by the tegulum strongly pronounced retrolaterally and by the absence of an apical tegular projection ( Fig. 9E, F ). Females resemble those of T. mutum sp. nov. by the rounded copulatory opening but can be recognized by the concave posterior margin of the epigynal plate ( Fig. 9G, H ).

Description. Male holotype (MPEG 35480). Carapace yellow, with brown stripe extending over ocular area, and brown lateral stripes. Chelicerae dark brown. Labium brown. Endites brown. Sternum and borders yellow, with anterior lateral excavations brown. Legs yellow, with proximal and distal region of lateral surfaces of tibiae black and lateral surfaces of patellae I and II black. Abdomen dorsum yellow, with one pair of black longitudinal spots in cardiac area; in median region, one pair of black spots on each side followed by three black spots, subsequently one subretangular black spot. Contour of spinnerets black; venter yellow ( Fig. 3C ). Total length 4.76. Carapace length 2.25, width 1.89, height 0.83. Clypeus length 0.15. Eye diameters and interdistances: anterior row 0.64, posterior row 0.67, MOQ: length 0.36, anterior width 0.34, posterior width 0.39, AME 0.10, PME 0.10, ALE 0.13, PLE 0.10, AME-AME 0.12, AME-ALE 0.05, PME-PME 0.17, PME-PLE 0.80, ALE-PLE 0.04. Chelicerae: length 1.18 with 4 promarginal and 2 retromarginal teeth. Sternum length 1.14, width 1.03. Leg I: femur (fe) 1.94, patella (pa) 0.89, tibia (ti) 2.00, metatarsus (mt) 1.87, tarsus (ta) 0.86. II: fe 2.04, pa 0.77, ti 1.91, mt 1.76, ta 0.91. III: fe 2.09, pa 0.72, ti 1.57, mt 2.03, ta 0.99. IV: fe 2.50, pa 0.90, ti 2.05, mt 2.89, ta 1.03. Abdomen: length 2.29, width 1.58. 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 v2-2-2-2; metatarsus v2-2-0. III – femur d1-1-1, p0-1-1, r0-1-1; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p1-1-0, r1-1-0, 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 p1-1-0, r1-1-0, v2-2-2. Palp: tibia longer than half cymbial length; ventral lobe of retrolateral tibial apophysis with short apical spur; dorsal lobe absent, ventral tibial apophysis curved apically; embolus short; embolar basal process, tegular prolateral process and tegular retrolateral process absent ( Fig. 9E, F ).

Female paratype (MPEG 35481). Carapace yellow, with brown stripe extending over ocular area, and brown lateral stripes. Chelicerae dark brown. Labium brown. Endites brown. Sternum and borders yellow, with anterior lateral excavations brown. Legs yellow, with proximal and distal region of lateral surfaces of tibiae black and lateral surfaces of patellae I and II black. Abdomen dorsum as in male, except last black spot, which is replaced by three subtriangular black spots connected one to another; venter yellow ( Fig. 3D ). Total length 6.04. Carapace length 2.44, width 1.98, height 0.90. Clypeus length 0.22. Eye diameters and interdistances: anterior row 0.63, posterior row 0.70, MOQ: length 0.40, anterior width 0.36, posterior width 0.36, AME 0.16, PME 0.15, ALE 0.10, PLE 0.12, AME-AME 0.11, AME-ALE 0.04, PME-PME 0.16, PME-PLE 0.05, ALE-PLE 0.06. Chelicerae: length 1.09 with 5 promarginal and 3 retromarginal teeth. Sternum length 1.14, width 1.20. Leg I: femur (fe) 2.14, patella (pa) 0.76, tibia (ti) 1.84, metatarsus (mt) 1.92, tarsus (ta) 0.96. II: fe 2.10, pa 0.82, ti 1.84, mt 1.88, ta 0.94, pa 0.87, ti 2.09, mt 2.95, ta 1.01. Abdomen: length 3.45, width 2.44. 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. No leg III. IV – femur d1-1-1, p0-1-1, r0-0-1; tibia p1-1-0, r1-1-0, v2-2-2; metatarsus p1-1-0, r1-1-0, v2-2-2. Epigynum: copulatory opening anteriorly positioned; posterior vulval plate well developed; secondary spermathecae absent ( Fig. 9G, H ).

Variation. Lengths (1♂) total 4.30, carapace 1.98, femur I 2.00.

Material examined. Only the type material.

Distribution. Known only from the type locality ( Fig. 28 ).

Figures

FIGURE 3. A–B. Tupirinna regiae sp. nov.: A. male, dorsal view (MPEG 35499). B. female, dorsal view (MPEG 35487). C–D. Tupirinna araguaia sp. nov.: C. male, dorsal view (MPEG 35480). D. female, dorsal view. E–F. Tupirinna platnicki sp. nov.: E. male, dorsal view (MPEG 35476). F. female, dorsal view (MPEG 35473).

FIGURE 9. A–D. Tupirinna regiae sp. nov.,: A–B. male palp. A. ventral view. B. retrolateral view. C–D. C. ventral view. D. dorsal view. E–H. Tupirinna araguaia sp. nov.: E–F. male palp. E. ventral view. F. retrolateral view. G–H. epigynum. G. ventral view. H. dorsal view. Scale bars = 0.5 mm. Abbreviations:AS, apical spur; CD, copulatory duct; CO, copulatory opening; dVL, dorsal process of ventral lobe; E, embolus; FD, fertilization duct; PVP, posterior vulval plate; SI, primary spermathecae; TRP, tegular retrolateral process; VTA, ventral tibial apophysis.

FIGURE 28. Distribution map of T. araguaia sp. nov., T. gigantea sp. nov., T. coari sp. nov., T. mutum sp. nov. and T. regiae sp. nov.