Matinta acutidens ( Simon, 1900 ), 2019

Ruiz, Gustavo R. S., Maddison, Wayne P. & Galiano, Maria Elena, 2019, A revision of the concept of Mago O. Pickard-Cambridge, 1882, and proposal of a new genus (Araneae: Salticidae: Amycini), Zootaxa 4658 (1), pp. 124-140 : 135-137

1. Matinta acutidens ( Simon, 1900) comb. nov.

Mago acutidens Simon, 1900: 56 ; Caporiacco 1948: 697, fig. 119; Galiano 1963: 387, pl. XXVI, figs 6–9; Patello & Ruiz 2014: 445, figs 9, 12, 15, 23–26; World Spider Catalog 2019.

2. Matinta apophysis (Costa & Ruiz, 2017) comb. nov.

Mago apophysis Costa & Ruiz, 2017: 589, figs 18–19, 24–25; World Spider Catalog 2019.

3. Matinta balbina ( Patello & Ruiz, 2014) comb. nov.

Mago balbina Patello & Ruiz, 2014: 451 , figs 34–36; World Spider Catalog 2019.

4. Matinta chickeringi ( Caporiacco, 1954) comb. nov.

Albionella chickeringi Caporiacco, 1954: 153 , figs 50, 50a–b.

Mago chickeringi: Ruiz & Brescovit 2008: 488 ; World Spider Catalog 2019. 5. Matinta delicata ( Patello & Ruiz, 2014) comb. nov. Mago delicatus Patello & Ruiz, 2014: 448 , figs 8, 14, 30–33; World Spider Catalog 2019. 6. Matinta fasciata ( Mello-Leitão, 1940) comb. nov. Mago fasciatus Mello-Leitão, 1940: 187 , figs 25–26; Galiano 1968: 338, fig. 61; World Spider Catalog 2019. 7. Matinta fonsecai ( Soares & Camargo, 1948) comb. nov. Mago fonsecai Soares & Camargo, 1948: 440 , figs 35–37; Galiano 1968: 339, figs 62–63; World Spider Catalog 2019. 8. Matinta furcata (Costa & Ruiz, 2017) comb. nov. Mago furcatus Costa & Ruiz, 2017: 585, figs 1–2, 5–6, 9–11; World Spider Catalog 2019. 9. Matinta jurutiensis ( Patello & Ruiz, 2014) comb. nov. Mago jurutiensis Patello & Ruiz, 2014: 446 , figs 1–6, 10, 16–22, 27–29; World Spider Catalog 2019. 10. Matinta longidens ( Simon, 1900) comb. nov. Mago longidens Simon, 1900: 57 ; Simon 1901: 419, fig. 473; Caporiacco 1954: 160, figs 54, 54a; Galiano 1963:

389, pl. XXVI, figs 1–5; Patello & Ruiz 2014: 456, figs 7, 11, 13, 40–43; World Spider Catalog 2019. 11. Matinta mimica (Costa & Ruiz, 2017) comb. nov. Mago mimicus Costa & Ruiz, 2017: 586, figs 3–4, 7–8, 12–13; World Spider Catalog 2019. 12. Matinta opiparis ( Simon, 1900) comb. nov. Mago opiparis Simon, 1900: 58 ; Galiano 1963: 390, pl. XXVI, figs 13–14; World Spider Catalog 2019. 13. Matinta pardo (Costa & Ruiz, 2017) comb. nov. Mago pardo Costa & Ruiz, 2017: 589, figs 14–17, 20–23; World Spider Catalog 2019. 14. Matinta procax ( Simon, 1900) comb. nov. Mago procax Simon, 1900: 59 ; Galiano 1963: 393, pl. XXVII, figs 7–9; World Spider Catalog 2019. 15. Matinta saperda ( Simon, 1900) comb. nov. Mago saperda Simon, 1900: 58 ; Galiano 1963: 393, pl. XXVI, figs 11–12; World Spider Catalog 2019. 16. Matinta silvae ( Crane, 1943) comb. nov. Mago silvae Crane, 1943: 136 , figs 4A–E; World Spider Catalog 2019. 17. Matinta similis ( Patello & Ruiz, 2014) comb. nov. Mago similis Patello & Ruiz, 2014: 451 , figs 37–39; World Spider Catalog 2019. 18. Matinta steindachneri ( Taczanowski, 1878) comb. nov. Amycus steindachneri Taczanowski, 1878: 349 ) Mago pexus Simon, 1900: 57 ; Galiano 1963: 391, pl. XXVII, figs 4–6. Mago steindachneri : 342, figs 59–60; World Spider Catalog 2019. 19. Matinta vicana ( Simon, 1900) comb. nov. Mago vicanus Simon, 1900: 57 ; Galiano 1963: 394, pl. XXVII, figs 1–3; World Spider Catalog 2019.

Species-groups. To help with discussion of our results, the species of Matinta are here gathered in speciesgroups based simply on key features. These groups, however, need to be tested in cladistic analyses.

So far, only one species-group has been characterized and revised, by Patello & Ruiz (2014): the acutidens species-group of Matinta includes M. acutidens , M. balbina , M. delicata , M. jurutiensis , M. longidens , and M. similis . According to Patello & Ruiz (2014), these species would bear two linked RTA branches in the male palp: one more ventral, which is a blade-like lobe along the axis of the palp, and one more dorsal and perpendicular to the axis of the palp, which is a short and acute apophysis pointing dorsally (see Patello & Ruiz 2014: figs 11–12, 24, 31).

Besides the acutidens species-group, we here recognize the vicana species-group ( M. vicana , M. fonsecai , M. silvae , and possibly M. fasciata ), with a poorly developed RTA separate from a stout, bifid RvTA (see Galiano 1963: pl. XXVII: figs 1–3). The acutidens and the vicana species-groups seem to be closely related, since they share an intumescence on the stout embolus that fits into a concave prolateral portion of the tegulum, and a prolateral, acute projection on the same portion of the embolus.

Another lineage is the steindachneri species-group ( M. steindachneri , M. apophysis and several undescribed species), with the RTA modified into a blade that extends ventrally and dorsally into cusps, and the copulatory openings fused into an atrium on the epigynal plate (see Galiano 1963: pl. XXVII: fig. 5, 1968: fig. 59).

Matinta furcata and M. mimica , despite being sister-species, are of uncertain relationships with the remaining species-groups and are kept in the furcata species-group. Matinta opiparis is kept in its own group due to uncertain affinities within the genus (the opiparis species-group).

The saperda species-group gathers M. saperda , M. pardo , and M. procax . These three species lack the “tegular” slit and have simple RTA and poorly developed RvTA (see Galiano 1963: pl. XXVI: figs 11–12). These features, however, are all thought to be plesiomorphies within amycines and would not be used to demonstrate the monophyly of this species-group or even the inclusion of these species in Matinta.

Matinta chickeringi also needs to be corroborated as a member of the genus, since the holotype is lost and we have only the poor original description as reference for this species.