Matinta maddisoni Matos & Ruiz 2023, sp. nov.
Creators: name: Matos, Tainá D. S.
name: Ruiz, Gustavo R. S.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Matinta
Matinta maddisoni

description: Matinta maddisoni sp. nov.
Figs 19–22, 36–37, 46, 52, 58–59, 73–74, 80, 88–89
Type material. Holotype: ♁ from Cordillera de Cutucú, road from Patuca to Santiago, Morona Santiago, Ecuador, 2.806⁰S 78.246⁰W, 1000 m el., 13.VII.2004, Maddison, Agnarsson, Iturralde & Salazar leg. (WPM#04-040), deposited in QCAZ (temporarily in UBC-SEM). Paratype: 1♀ from Ecuador, Morona Santiago, 6.6 km N of Limón to Méndez, 2.923⁰S 78.408⁰W, 1000 m el., 14.VII.2004, Maddison, Agnarsson, Iturralde & Salazar leg. (WPM#04-041), deposited in QCAZ (temporarily in UBC-SEM).
Etymology. Species named in honor of the world-known arachnologist Wayne P. Maddison, who collected the type specimens.
Diagnosis. The males of M. maddisoni are similar to those of the species within the vicana species-group, especially those of M. aragog for having mastidia, separate prolateral cheliceral teeth, a bump on the cheliceral fang and a more symmetrical palpal bulb. Males of M. maddisoni can be distinguished from those M. aragog for not having the bifid embolus tip and for having a squared RTA in retrolateral view (triangular in M. aragog) (Figs 36–37, 46, 52). The females of M. maddisoni differ from those of the other species in which females are known (acutidens species-group, M. fasciata, M. silvae, M. opiparis, M. pardo and M. steindachneri) for having C-shaped copulatory openings facing laterally (Figs 58–59).
Description. Male (Figs 19–20). Total length: 5.40. Carapace reddish, black posteriorly, 3.03 long, 2.31 wide and 1.77 high. Ocular area 1.79 long. Anterior eye row 2.07 and posterior 1.96 wide. Chelicera dark brown, frontally with an oblique keel, a depression, a mastidion, with paracondylic projection and a bump on fang (Figs 73, 80); PMT: 2, RMT: 5, PIMT: 4, RIMT: 0 (Fig. 88). Palp (Figs 36–37, 46, 52) dark brown. Sternum yellow. Legs 3412; I: dark brown; II–III: femur yellow, with dark brown tip; patella and tibia dark brown; metatarsus and tarsus yellow; IV: light brown. Length: Leg I 5.56 (femur: 1.51; patella: 1.06; tibia: 1.60; metatarsus: 0.71; tarsus: 0.68); II 5.04 (1.65; 0.95; 1.25; 0.70; 0.49); III 5.93 (2.02; 0.87; 1.38; 0.95; 0.71); IV 5.64 (1.92; 0.81; 1.33; 0.98; 0.60). Leg spination: femur I–IV d1-1-1, p0-0-2, r0-0-1; patella I–II 0; III–IV p0-1-0, r0-1-0; tibia I v2-2-2, p1-0-0, r0; II v2-2-2, p1-1-1, r0; III v1r-2-1r, p0, r0; IV v2-1r-2; p0, r0; metatarsus I–II v2-2; III v2-2, p2-0-2, r1-0-2; IV v2-2, p2-0-2, r1-1-2. Abdomen dorsally light brown with dark spots along the entire length (Fig. 19); ventrally with wide longitudinal black stripe (Fig. 20). Spinnerets light brown.
Female (Figs 21–22). Total length: 6.95. Carapace yellow, 3.42 long, 2.50 wide and 1.92 high. Ocular area 1.77 long, orange. Anterior eye row 2.23 and posterior 2.13 wide. Chelicera light brown (Fig. 74); PMT: 2, RMT: 6, PIMT: 3, RIMT: 4 (Fig. 89). Palp and sternum yellow. Legs 3421, yellow. Leg length: I 5.60 (femur: 1.42; patella: 1.12; tibia: 1.50; metatarsus: 0.88; tarsus: 0.68); II 5.77 (1.85; 1.03; 1.37; 0.85; 0.67); III 6.88 (2.46; 0.99; 1.50; 1.17; 0.76); IV 6.31 (2.21; 0.68; 1.33; 1.38; 0.71). Leg spination: femur I–IV d1-1-1, p0-0-2, r0-0-1; patella I–IV 0; tibia I v2-2-2, p0-0-1, r0; II v1r-2-2, p0-0-1, r0; III v1-0-2, p1-0-1, r1-1-1; IV v1-0-1; p1-0-1, r1-1-1; metatarsus I–II v2-2; III v2-2, p1-0-2, r1-0-2; IV v2-2, p1-0-2, r1-1-2. Abdomen as in male. Epigyne (Figs 58–59): copulatory ducts meeting medially and diverging posteriorly, folding dorsally and entering the posterior spermathecae. Spinnerets light brown.
Distribution. Known only from Ecuador.
description: Published as part of Matos, Tainá D. S. & Ruiz, Gustavo R. S., 2023, On the taxonomy of the jumping spider genus Matinta Ruiz & Maddison, 2019, with a taxonomic revision of the vicana species-group (Araneae: Salticidae: Amycini), pp. 126-150 in Zootaxa 5343 (2) on page 135, DOI: 10.11646/zootaxa.5343.2.2, http://zenodo.org/record/8324346