Tupirinna platnicki, 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 : 217-219

Tupirinna platnicki sp. nov.

Figs 3E, F , 10A–D , 18A–F

urn:lsid:zoobank.org:act:7821F7F5-C328-4965-8BC4-E61EB2BEE793

Type material. Holotype: ♂ from 18 km east of Itaituba (04°16’09”S, 55°59’23”W), Altamira, Pará, Brazil , 8– 17.IV.1985, leg. N. Degallier ( MPEG 35471 ) . Paratypes: BRAZIL: Pará: Portel, Igarapé Caquajó, Plote PPBio, Floresta Nacional de Caxiuanã (01°57’38.9’’S, 51°36’45.3’’W), 10.V.2005, leg. D.F. Candiani, 1♀ ( MPEG 35473 ) ; Altamira, 18 km east of Itaituba (04°16’09”S, 55°59’23”W), 8–17.IV.1985, leg. N. Degallier, 1♂ ( MPEG 35472 ) ; Melgaço, Estação Científica Ferreira Penna, Floresta Nacional de Caxiuanã (01°47’32.7”S, 51°25’59.2”W), 2.VI.2006, leg. E.J. Sales, beating tray, 1♀ ( MPEG 35475 ) ; Same locality (01°44’14.67”S, 51°27’18.84”W), 18.IV.2006, leg. C.A. Souza, beating tray, 1♀ ( MPEG 35474 ) .

Note. Males and females were collected in the same phytophysiognomy (Terra Firme Forest) but nearly 180 km apart. They are tentatively matched by similarities in the coloration pattern, but confirmation of this association will be only possible when more samples come to light. We believe that proposing this doubtful association is preferable than making available a possibly unnecessary specific name.

Etymology. The specific name is a patronym honoring the late Norman I. Platnick, for his enormous contribution to the field of Systematics.

Diagnosis. Males of Tupirinna platnicki sp. nov. resemble those of T. mutum sp. nov. by the presence of a subapical embolar reinforcement ring, but can be recognized by the presence of a small sub-apical tegular process inserted apart from embolar base ( Fig. 10A ). Females resemble those of T. goeldi sp. nov. by the interrupted anterior border of the copulatory opening, but are readily recognized by the posterior border of the copulatory opening being sub-quadrangular ( Fig. 10C, D ).

Description. Male holotype (MPEG 35471). Carapace yellow, with dark brown stripe extending over ocular area, and dark brown lateral stripes. Chelicerae brown. Labium pale brown. Endites pale brown. Sternum and borders yellowish-white, anterior lateral excavations pale brown. Legs pale yellow, with posterior ventral and lateral surfaces of tibia stained black. Abdomen dorsum white, slightly damaged, with four spots on anterior portion of venter white ( Fig. 3E ). Total length 4.07. Carapace length 1.96, width 1.59, height 1.00. Clypeus height 0.23. Eye diameters and interdistances: anterior row 0.50, posterior row 0.55, MOQ: length 0.28, anterior width 0.26, posterior width 0.34, AME 0.09, PME 0.11, ALE 0.09, PLE 0.10, AME-AME 0.10, AME-ALE 0.04, PME-PME 0.12, PME-PLE 0.07, ALE-PLE 0.03. Chelicerae: length 0.98, with 4 promarginal and 3 retromarginal teeth. Sternum length 0.95, width 0.98. Leg I: femur (fe) 1.66, patella (pa) 0.65, tibia (ti) 1.21, metatarsus (mt) 1.29, tarsus (ta) 0.65. II: fe 1.77, pa 0.65, ti 1.50, mt 1.29, ta 0.65. III: fe 2.01, pa 0.62, ti 1.33, mt 1.71, ta 0.87. IV: fe 2.11, pa 0.65, ti 1.75, mt 2.21, ta 0.96. Abdomen: length 2.02, width 1.50. Leg spination: I – femur d1-1-1, p0-1-0; tibia v2-2-2; metatarsus v2-2. II – femur d1-1-1, p0-0-1; tibia v2-2-2; metatarsus v2-0-2. III – femur d1-1-1, p0-1-1, r0-1-1; tibia p1-1-0, r1-1-0, v2-2-0; metatarsus p0-1-0, r0-2-0, v2-2-0. 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, r1-1-1, v2-1-3. Palp: tibia longer than half cymbial length; ventral lobe of retrolateral tibial apophysis with apical spur; dorsal lobe absent; ventral tibial apophysis curved apically retrolateral; embolus short, embolar basal process absent, tegular median process slightly pointed (TMP) ( Fig. 10A, B ).

Female paratype (MPEG 35473). Carapace yellow, with dark brown stripe extending over ocular area, and black stripes laterally. Chelicerae brown. Labium pale brown. Endites pale brown. Sternum and borders yellowishwhite, anterior lateral excavations pale brown. Legs pale yellow, with posterior ventral and lateral surfaces of tibia stained black. Abdomen dorsum grey, with pair of black longitudinal spots in cardiac area; in median region, two pairs of black spots on each side; subsequently a single black transverse spot followed by a smaller black transverse spot. Contour of spinnerets black; venter white ( Fig. 3F ). Total length 4.86. Carapace length 2.02, width 1.63, height 1.05. Clypeus height 0.2. Eye diameters and interdistances: anterior row 0.58, posterior row 0.65, MOQ: length 0.28, anterior width 0.31, posterior width 0.38, AME 0.10, PME 0.12, ALE 0.12, PLE 0.11, AME-AME 0.12, AME-ALE 0.04, PME-PME 0.14, PME-PLE 0.08, ALE-PLE 0.01. Chelicerae: length 0.92, with 5 promarginal and 3 retromarginal teeth. Sternum length 0.98, width 1.02. Leg I: femur (fe) 1.95, patella (pa) 0.72, tibia (ti) 1.54, metatarsus (mt) 1.47, tarsus (ta) 0.83. II: fe 1.83, pa 0.66, ti 1.61, mt 1.59, ta 0.89. III: fe 1.77, pa 0.53, ti 1.47, mt 1.82, ta 0.83. IV: fe 2.32, pa 0.70, ti 1.86, mt 2.53, ta 0.94. Abdomen: length 2.57, width 1.62. Leg spination: I – femur d1-1-1, p0-1-0; tibia v2-2-2; metatarsus v2-2-0. II – femur d1-1-1, p0-0-1, r0-1-0; tibia d0-0-1, p0-0-1, r1-0-0, v2-2-2. III – femur d1-1-1; p0-1-1; r0-1-1; tibia d0-0-1; p0-1-1, r0-1-1, v2-2-2; metatarsus p1-1-1, r1-1-1, v2-2-0. IV – femur d1-1-1, p0-1-1, r0-0-1; tibia d0-1-0, p0-1-1, r0-0-1, v2-2-2; metatarsus d2-0-0, p1-1-0, 1-1-0, v2-2-1. Epigynum: copulatory opening anteriorly positioned; posterior vulval plate well developed; secondary spermathecae absent ( Figs 10C, D , 18 A–F ).

Variation. Lengths: (2♂) total 4.41, carapace 2.13, femur I 1.89; (3♀) total 4.73–4.84, carapace 1.84–2.02, femur I 1.80-1.96.

Additional material examined. Brazil: Pará: Melgaço, Estação Científica Ferreira Penna, Floresta Nacional de Caxiuanã (01°44’18.02”S 51°27’48.01”W), 11–20.VII.1998, leg. B. Silva, 1♀ ( MPEG 3260 ) .

Distribution. State of Pará, Brazil ( Fig. 25 ).

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 10. A–D. Tupirinna platnicki sp. nov.: A–B. male palp, arrow: subapical embolar reinforcement ring. A. ventral view. B. retrolateral view. C–D. epigynum C. ventral view. D. dorsal view. E–F. Tupirinna goeldi sp. nov.: epigynum. E. ventral view. F. dorsal view. Scale bars = 0.5 mm. Abbreviations: AS, apical spur; dVL, dorsal process of ventral lobe; E, embolus; SI, primary spermathecae; PVP, posterior vulval plate; VTA, ventral tibial apophysis.

FIGURE 18. A–F. Tupirinna platnicki sp. nov. female genitalia. A–C. ventral view. A. epigynum. B. copulatory opening. C. copulatory opening detail. D–F. dorsal view with PVP removed. D–E. epigynum. F. primary spermatheca detail. Abbreviations: CD, copulatory duct; CO, copulatory opening; CP, copulatory pouch; SI, primary spermathecae.

FIGURE 25. Distribution map of T. zebra sp. nov., T. platnicki sp. nov., T. goeldi sp. nov. and T. urucu sp. nov.