Tupirinna platnicki Xavier & Bonaldo 2021, sp. nov.
Creators: name: Xavier, Cláudia
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Corinnidae
Tupirinna
Tupirinna platnicki

description: 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).
description: Published as part of Xavier, Cláudia & Bonaldo, Alexandre B., 2021, Taxonomic revision of the genus Tupirinna Bonaldo, 2000 (Araneae: Corinnidae: Corinninae), pp. 201-250 in Zootaxa 5004 (2) on pages 217-219, DOI: 10.11646/zootaxa.5004.2.1, http://zenodo.org/record/5123398