Thiodina tyrioni Bustamante & Ruiz 2020, sp. nov.
Creators: name: Bustamante, Abel A.
name: Ruiz, Gustavo R. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Thiodina
Thiodina tyrioni

description: Thiodina tyrioni sp. nov.
Figs 11–12, 64–75
Etymology. The specific name is after Tyrion Lannister, fictional character from the TV series “Game of Thrones”, because of his short stature, sharing this characteristic with the representatives of this species.
Diagnosis. Males and females of T. tyrioni sp. nov. resemble those of T. minuta, T. perian and T. camilae sp. nov. by the general appearance (carapace yellow with black borders, a pair of brown stripes on the thoracic region, abdomen dorsally as in genus), but with larger body, almost like that of T. nicoleti (see Bustamante et al. 2015). Males of T. tyrioni sp. nov. differ from the remaining species of the genus by having a longer embolus (480°, 1T+120°) (compare Figs 68 and 70 with Figs 56 and 58; Galiano 1977b: fig. 17 and Bustamante & Ruiz 2017: fig. 26A). The females resemble those of T. minuta, T. perian and T. camilae sp. nov. by the shape of the rounded spermathecae, but differ by the longer copulatory ducts (compare Figs 74–75 with Figs 62–63; Galiano 1977b: fig. 17 and Bustamante & Ruiz 2017: fig. 26F).
Description. Male (holotype, UBC-SEM). Total length 2.41. Carapace length 1.19, width 0.80, height 0.50. AME diameter 0.24. Ocular quadrangle length 0.69. Anterior eye row width 0.74. Posterior eye row width 0.73. Abdomen length 1.22.
Chelicera paturon: spine-like setae absent; left chelicera promargin with one tricuspid tooth, middle cusp larger than others, right chelicera promargin with one bicuspid and curved tooth, with distal cusp larger, retromargin with one tooth bicuspid and curved. Leg I: femur 0.78x0.22, patella 0.43, tibia 0.61, metatarsus 0.47, tarsus 0.35. II: fe 0.57, pa 0.33, ti 0.41, mt 0.36, ta 0.28. III: fe 0.52, pa 0.27, ti 0.35, mt 0.36, ta 0.29. IV: fe 0.69, pa 0.32, ti 0.53, mt 0.46, ta 0.32. Leg formula 1423. Leg macrosetae: femur I–III d1di, p0, r0; IV d1-1-1, p0, r0, patella I–IV 0, tibia I p0, r0, v2-0-2a-2a, II p0, r0, v1r-1r-0, III–IV 0, metatarsus I–II p0, r0, v2-2; III p2di, r2di, v0; IV p1di, r1di, v0.
Palp (Figs 68–71): tibia wider than long, RTA thin and hook-shaped, RvTA rounded (Figs 69, 71); embolus simple, fixed to tegulum, arising prolaterally (9:00), with path of 480° (1T+120°) before distal coil (Figs 68, 70).
Color in alcohol: carapace yellow with black borders, two brown stripes in thoracic region, abdomen dorsally yellow, with three longitudinal dark stripes, middle one continuous, others discontinuous, sides with one longitudinal dark stripe (five in total), venter white with dark areas, spinnerets yellow. Femur I yellow, patella, tibia and metatarsus darker, tarsus yellow, II yellow, with brown metatarsus, III and IV yellow (Figs 64–65).
Female (Paratype, UBC-SEM). Total length 2.69. Carapace length 1.15, width 0.77, height 0.48. AME diameter 0.23. Ocular quadrangle length 0.65. Anterior eye row width 0.72. Posterior eye row width 0.78. Abdomen length 1.53.
Chelicera paturon: promargin with one tooth, tricuspid and curved, retromargin with one bicuspid and curved tooth. Leg I: femur 0.55x0.20, patella 0.33, tibia 0.40, metatarsus 0.31, tarsus 0.25; II: fe 0.44, pa 0.28, ti 0.28, mt 0.25, ta 0.21; III: fe 0.45, pa 0.24, ti 0.29, mt 0.28, ta 0.23; IV: fe 0.62, pa 0.29, ti 0.44, mt 0.37, ta 0.28. Leg formula 4132. Leg macrosetae: femur I d1di, p0, r0; II–III d0-1-1, p0, r0; IV d1-1-1, p0, r0; patella I–IV 0, tibia I p0, r0, v2*-2a-2a; II p0, r0, v1r-1r-0; III 0; IV p0, r0, v0-1p-0; metatarsus I p0, r0, v2-2; II p0, r0, v1r-2; III p2di, r1di, v0, IV p2di, r2di, v0.
Epigyne (Figs 72–75): posterior edge simple, without lobes, copulatory openings posteriorly placed and Ushaped (Figs 72–73), copulatory ducts slightly projected posteriorly to epigyne edge (Figs 74–75).
Color in alcohol: carapace as in male, abdomen dorsally as in male but with all stripes continued, spinnerets as in male. Legs yellow (Figs 66–67).
Type material. Holotype Ƌ: U.S.A.: Arizona: Santa Cruz County, from Mount Hopkins Road, 31.6705°N, 110.9137°W, 1640 m a.s.l., leg. W.P. Maddison & H. Proctor, 6.VIII.2013 (UBC-SEM).
Paratypes: U.S.A.: Arizona: Pima County, Madera Canyon, near Proctor Road, 31.7417°N, 110.884°W, leg. W.P. Maddison, 8.VIII.2013, 1♀ (UBC-SEM); Santa Cruz County, from Mount Hopkins Road, 31.6705°N, 110.9137°W, 1640 m a.s.l., leg. W.P. Maddison & H. Proctor, 6.VIII.2013, 1♀ (UBC-SEM).
Other material examined. U.S.A.: Arizona: Santa Cruz County, 13 km of Mount Hopkins Road, 31.671°N, 110.880°W to 31.673°N, 110.881°W, 2170 m a.s.l., leg. W.P. Maddison, S. Evans, H. Proctor & G. Leduc-Robert, 10.VIII.2013, 1♀ (UBC-SEM); Amateur Astronomy Vista, 31.6759°N, 110.9289°W to 31.6762°N, 110.9293°W, 1430 m a.s.l., leg. W.P. Maddison & H. Proctor, 7.VIII.2013, 1♀ (UBC-SEM).
Distribution. Known only from Arizona, USA.
Notes. This species was mentioned as “cf. Cyllodania sp. [d286]” in Ruiz & Maddison (2015) and “ Thiodina aff. minuta ” in Bustamante & Ruiz (2017: 345).
Due the general appearance and the reduced body size, T. minuta, T. perian, T. camilae sp. nov. and T. tyrioni sp. nov. could form a monophyletic group: the T. minuta species group (here proposed). A molecular phylogenetic study (Ruiz & Maddison 2015) suggested a close relationship between T. tyrioni sp. nov. (“cf. Cyllodania sp. [d286]” in that paper) and Arachnomura querandi Bustamante & Ruiz, 2017 (see discussion in Bustamante & Ruiz 2017: 345).
description: Published as part of Bustamante, Abel A. & Ruiz, Gustavo R. S., 2020, New species and records of thiodinines from North and South America (Araneae Salticidae: Salticinae: Thiodinini), pp. 115-140 in Zootaxa 4899 (1) on pages 135-139, DOI: 10.11646/zootaxa.4899.1.6, http://zenodo.org/record/4400757