Matinta opiparis ( Simon, 1900 )

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), Zootaxa 5343 (2), pp. 126-150 : 128

Matinta opiparis ( Simon, 1900)

Figs 1–14 , 69–70 , 82–83

Mago opiparis Simon, 1900: 58 (Male holotype from Pará, Brazil, deposited in MNHN, Paris, not examined); Galiano, 1963: 390, pl. XXVI, figs 13–14.

Matinta opiparis: Ruiz et al., 2019: 136 ; World Spider Catalog, 2023.

Note. This species with unusual male palp was easily identified using Galiano’s (1963: pl. XXVI: figs 13–14) illustrations. Due the new data accumulated for Amycini since Galiano’s work, we take a chance to update the diagnosis and redescribe it based on recently collected specimens.

Material examined. BRAZIL: Pará: Belém, Parque Estadual do Utinga (1.425⁰S 48.424⁰W): 1♁ 1♀, 12– 30.IV.2011, E.L.S. Costa & N.C. Bastos leg. ( MPEG 38519 ) .

Diagnosis (updated). The male of M. opiparis differs from all the other species of the genus for having a spiraled embolus ( Figs 5–7 , 11, 13 ). The female differs from those of the other Matinta species in which females are known [ acutidens -group (see Patello & Ruiz 2014), M. fasciata (Mello-Leit„o, 1940), M. silvae ( Crane, 1943) , M. maddisoni sp. nov., M. pardo ( Costa & Ruiz, 2017) and M. steindachneri (Taczanowski, 1878) ] for having a T-shaped figure ventrally on the epigyne, formed by the copulatory openings and a longitudinal median septum ( Figs 9 , 14 ).

Redescription. Male ( Figs 1–2 ). Total length: 7.53. Carapace dark brown, 3.66 long, 2.75 wide and 1.94 high. Ocular area 1.82 long. Anterior eye row 2.40 and posterior 2.24 wide. Chelicera dark brown, with no mastidion, but with a lateral keel ( Fig. 69 ); PMT: 2, RMT: 4, PIMT: 3, RIMT: 4 ( Fig. 82 ). Palp ( Figs 5–8 , 11–13 ) brown, with a dorsally and prolaterally curved RTA, with a ventral cusp on its middle, forming a bicusp bladed RTA, and with a conical RvTA ( Figs 7–8 , 12 ). Sternum yellow. Legs 1342; I dark brown; II–IV: femur yellow proximally and dark brown distally, other articles with alternating light brown and yellow rings. Leg length: I 7.25 (femur: 2.08; patella: 1.40; tibia: 1.95; metatarsus: 1.07; tarsus: 0.75); II 6.29 (2.07; 0.95; 1.52; 1.04; 0.71); III 7.15 (2.46; 1.07; 1.28; 1.57; 0.77); IV 7.11 (2.19; 0.93; 1.71; 1.50; 0.78). 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, p1-0-1, r0; II v1r-2-2, p1-1-1, r0; III–IV v1p-0-2; p0-1-1, r1-1-1; metatarsus I–II v2-2; III v0-2-2, p1-0-2, r1-0-2; IV v0-1p-2, p1-1-2, r1-0-2. Abdomen dorsally cream-colored with a pair of narrow brown transverse stripes anteriorly, and with three pairs of irregular brown marks ( Fig. 1 ); ventrally with a wide longitudinal dark brown stripe ( Fig. 2 ). Spinnerets brown.

Description. Female ( Figs 3–4 ). Total length: 8.23. Carapace yellow, 3.63 long, 2.71 wide and 1.95 high. Ocular area 2.09 long, reddish. Anterior eye row 2.34 and posterior 2.11 wide. Chelicera light brown ( Fig. 70 ); PMT: 2, RMT: 5, PIMT: 3?, RIMT: 4? ( Fig. 83 ). Palp yellow. Sternum yellow. Legs 3412; I: femur and patella yellow; tibia, metatarsus and tarsus light brown; II: yellow; III: articles yellow, but distally brown; IV: femur and patella yellow; tibia and metatarsus yellow, but distally brown; tarsus yellow. Leg length I 6.69 (femur: 2.13; patella: 1.20; tibia: 1.68; metatarsus: 1.03; tarsus: 0.65); II 5.83 (1.79; 0.99; 1.42; 0.95; 0.68); III 7.27 (2.45; 0.98; 1.74; 1.35; 0.75); IV 7.17 (2.37; 0.99; 1.62; 1.43; 0.76). Leg spination: femur I d1-1-1, p0-0-2; II–III d1-1-1, p0-0-2, r0-0-1; IV d1-1-1, p0-0-1, 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 v1p-0-2; p1-0-1, r1-1-0-1; IV v2-0-2, p1-1-1, r1-1-0-1; metatarsus I–II v2-2; III v2-2, p1-0-2, r1-0-2; IV v1p-0-2, p1-0-2, r1-1. Abdomen as in male. Epigyne ( Figs 9–10 , 14 ) with wide posterior coupling pocket; copulatory openings as large pouches, with sinuous copulatory ducts leading to posterior spermathecae. Spinnerets dark brown.

Distribution. Known only from the state of Pará ( Brazil).

Figures

FIGURES 1–4. Matinta opiparis Simon. 1–2 Male (1 dorsal view; 2 ventral view). 3–4 Female (3 dorsal view; 4 ventral view).

FIGURES 5–10. Matinta opiparis Simon.5–8 Left male palp (5 prolateral view; 6 ventral view; 7 retroventral view; 8 retrolateral view). 9–10 Epigyne (9 ventral view; 10 cleared, dorsal view).

FIGURES 11–14. Matinta opiparis Simon. 11–13 Left male palp (11 ventral view; 12 retrolateral view; 13 detail of embolus, ventral view). 14 Epigyne, ventral view.

FIGURES 69–74. Matinta spp., chelicerae, frontal view. 69–70 M. opiparis Simon (69 male; 70 female). 71–72 M. silvae Crane (71 male; 72 female). 73–74 M. maddisoni sp. nov. (73 male; 74 female). Arrow in 71 shows paracondylic projection.

FIGURES 82–92. Matinta spp., left chelicera teeth, retrolateral view. 82–83 M. opiparis Simon (82 male; 83 female). 84 M. fonsecai Soares & Camargo, male. 85–86 M. silvae Crane (85 male; 86 female). 87 M. vicana Simon, male. 88–89 M. maddisoni sp. nov. (88 male; 89 female). 90 M. pereirae sp. nov., male. 91 M. aragog sp. nov., male. 92 M. tatianae sp. nov., male. All illustrations in same scale, except for M. tatianae (92). Colors indicate tooth rows: promarginal (blue), retromarginal (orange), prointermarginal (red) and retrointermarginal (green).