Taxonomic revision of the jumping spider genus Tullgrenella Mello-Leito, 1941 (Araneae: Salticidae: Freyina).

This paper presents a taxonomic revision of the genus Tullgrenella Mello-Leito, 1941. Four new species are described: Tullgrenella aisenbergae Marta, sp. nov. (Brazil) (), T. legalissima Marta & Hagopin sp. nov. (Uruguay) (), T. galianoae Marta, sp. nov. (Brazil) () and T. sciosciae Marta & Bustamante sp. nov. (Brazil) (). The males of T. corrugata Galiano, 1981 and T. peniaflorensis Galiano, 1970, and the female of T. selenita Galiano, 1970 are described for the first time. An updated diagnosis for the genus is provided based on the detailed comparative morphological studies. In addition, we present a proposal and discussion about the species groups of Tullgrenella based on the putative synapomorphies as well as the updated distribution of the genus in South America.

A new huriine genus and notes on morphological characters (Araneae: Salticidae: Salticinae).

Huriini Simon, 1901 currently consists of six genera and 17 species, distributed exclusively in South America. In this work, the huriine genus Guriurius Marta, Bustamante, Ruiz Rodrigues, gen. nov. is proposed with two new species herein described: Guriurius minuano Marta, Bustamante, Ruiz Rodrigues, sp. nov. (type species) and Guriurius nancyae Marta, Bustamante, Ruiz Rodrigues, sp. nov. The female of Atelurius segmentatus Simon, 1901 is described and illustrated for the first time. Scoturius dipterioides Perger Rubio, 2018 is transferred to Atelurius Simon, 1901 due to the morphological similarity of copulatory ducts of epigyne, and Hurius pisac Galiano, 1985 is transferred to Simonurius Galiano, 1988 due to the similarities in body shape and female genitalia. Simonurius campestratus (Simon, 1901) is synonymized with Simonurius quadratarius (Simon, 1901). The interpretation of genitalic characters in Huriini is discussed. In addition, we provide new distributional records for Admesturius bitaeniatus (Simon, 1901), Ad. mariaeugeniae Bustamante Scioscia, 2014, Ad. schajovskoyi Galiano, 1988, At. segmentatus Simon, 1901, Scoturius tigris Simon, 1901, Hurius aeneus (Mello-Leito, 1941), and Simonurius gladifer (Simon, 1901). Except for Urupuyu Ruiz Maddison, 2015, all huriine genera are rediagnosed in the new context of tribe and genus composition.

A new huriine genus and notes on morphological characters (Araneae: Salticidae: Salticinae)

Huriini Simon, 1901 currently consists of six genera and 17 species, distributed exclusively in South America. In this work, the huriine genus Guriurius Marta, Bustamante, Ruiz & Rodrigues, gen. nov. is proposed with two new species herein described: Guriurius minuano Marta, Bustamante, Ruiz & Rodrigues, sp. nov. (type species) and Guriurius nancyae Marta, Bustamante, Ruiz & Rodrigues, sp. nov. The female of Atelurius segmentatus Simon, 1901 is described and illustrated for the first time. Scoturius dipterioides Perger & Rubio, 2018 is transferred to Atelurius Simon, 1901 due to the morphological similarity of copulatory ducts of epigyne, and Hurius pisac Galiano, 1985 is transferred to Simonurius Galiano, 1988 due to the similarities in body shape and female genitalia. Simonurius campestratus (Simon, 1901) is synonymized with Simonurius quadratarius (Simon, 1901). The interpretation of genitalic characters in Huriini is discussed. In addition, we provide new distributional records for Admesturius bitaeniatus (Simon, 1901), Ad. mariaeugeniae Bustamante & Scioscia, 2014, Ad. schajovskoyi Galiano, 1988, At. segmentatus Simon, 1901, Scoturius tigris Simon, 1901, Hurius aeneus (Mello-Leitão, 1941), and Simonurius gladifer (Simon, 1901). Except for Urupuyu Ruiz & Maddison, 2015, all huriine genera are rediagnosed in the new context of tribe and genus composition.

Revision of Gypogyna Simon, 1900 (Araneae: Salticidae).

Gypogyna Simon, 1900 is revised. Three species are recognized and diagnosed. The type species, Gypogyna forceps Simon, 1900, is redescribed and recorded from several localities in South America. Gypogyna amazonica Ruiz sp. nov. is described based on a male from Manaus, Brazil. Gypogyna mexicana Ruiz Bustamante sp. nov. is described based on specimens of both sexes from the state of Jalisco, Mexico. In addition, some comments on cheliceral dentiton and genital morphology are discussed.

New species and records of thiodinines from North and South America (Araneae: Salticidae: Salticinae: Thiodinini).

Five new species of thiodinines are described: Atomosphyrus wandae sp. nov. (♂, from state of Piauí, Brazil); Cyllodania marietae sp. nov. (♂♀, from Ecuador); Tartamura turbo sp. nov. (♂♀, from state of Pará, Brazil); Thiodina camilae sp. nov. (♂♀, from the Dominican Republic); and Thiodina tyrioni sp. nov. (♂♀, from Arizona, U.S.A.). New records of Thiodina firme Bustamante Ruiz, 2017, Tartamura adfectuosa (Galiano, 1977), T. agatelin Bustamante Ruiz, 2017 and T. huao Bustamante Ruiz, 2017 are provided.

New species of Peckhamia Simon, 1900 (Salticidae: Dendryphantini: Synagelina) from the Greater Antilles.

Four new species of Peckhamia Simon, 1900 (P. wesolowskae sp. nov. and P. surcaribensis sp. nov. from Cuba, P. espositoae sp. nov. from Jamaica and P. areito sp. nov. from the Dominican Republic) from the Greater Antilles are described. Additionally, Sarinda glabra Franganillo, 1930, Descanso montanus Bryant, 1943, D. formosus Bryant, 1943 and D. magnus Bryant, 1943 are transferred to Peckhamia and provide new combinations, P. glabra comb. nov., P. montana comb. nov., P. formosa comb. nov. and P. magna comb. nov.. Peckhamia glabra is stated as a nomen dubium. Diagnostic illustrations and a distribution map are provided for the new species.

Systematics of Thiodinini (Araneae: Salticidae: Salticinae), with description of a new genus and twelve new species.

The jumping spider tribe Thiodinini is revised at generic level: diagnoses are proposed for all valid genera, based on the type species of each genus, and in some cases, on new species herein described. The tribe contains seven genera: Thiodina Simon, 1900; Cyllodania Simon, 1902; Hyetussa Simon, 1902; Atomosphyrus Simon, 1902; Arachnomura Mello-Leitão, 1917, Titanattus Peckham & Peckham, 1885 and the new genus Tartamura gen. nov. The following genera are synonymized: Micalula Strand, 1932 and Bredana Gertsch, 1936 with Hyetussa Simon, 1902; Agelista Simon, 1900 with Titanattus Peckham & Peckham, 1885. With this, the following new combinations are established: Hyetussa longithorax (Petrunkevitch, 1925) comb. nov. (this species with a neotype designation), from Micalula, and Hyetussa complicata (Gertsch, 1936) comb. nov. and Hyetussa alternata (Gertsch, 1936) comb. nov., both from Bredana. A transfer is proposed: Thiodina minuta comb. nov. (from Cyllodania). Twelve new species are described: Arachnomura querandi sp. nov.; Cyllodania trinidad sp. nov.; Cyllodania zoobotanica sp. nov.; Hyetussa sergipe sp. nov.; Hyetussa tremembe sp. nov.; Tartamura agatelin sp. nov.; Tartamura huao sp. nov.; Tartamura metzneri sp. nov.; Thiodina firme sp. nov.; Thiodina perian sp. nov.; Titanattus acanjuba sp. nov. and Titanattus euryphaessa sp. nov. Morphological traits and aspects of the phylogeny are discussed.

Edwardsya, a new genus of jumping spiders from South America (Araneae: Salticidae: Freyina).

Edwardsya gen. nov. is proposed to include the type species Attus simoni Taczanowski, 1871 from lower Amazon River, and E. igapo sp. nov. from upper Amazon River, both known only from Brazil. The male of Edwardsya simoni comb. nov. is redescribed and the correct female is described for the first time. Both sexes of the second species are described and illustrated. A modified endite apophysis is described, and a stimulatory role in copulation is proposed for it.

Three new species of Kalcerrytus Galiano, 2000 from Brazil (Araneae: Salticidae).

Three new species of Kalcerrytus Galiano, 2000 from the state of Pará in the Brazilian Amazon are described: K. amplexus sp. nov. from Parque Nacional da Serra do Pardo, São Félix do Xingu, K. filipi sp. nov. from Reserva Ecológica do Jari, Almeirim, and K. leonardi sp. nov. from Juruti. These increase up to 18 the described species within the genus.

The jumping spider genus Thiodina Simon, 1900 reinterpreted, and revalidation of Colonus F.O.P-Cambridge, 1901 and Nilakantha Peckham & Peckham, 1901 (Araneae: Salticidae: Amycoida).

In this paper we call attention to the identity of the type species of Thiodina Simon, 1900, T. nicoleti Roewer, 1951. When Simon proposed the genus, he characterized it based on morphological features found in species he described, but not found in the type species he designated, and whose type specimens, apparently, he had not examined. Nicolet's original description makes it clear that the type species is not closely related to the more familiar species placed in the genus. This misinterpretation was followed by contemporary researchers and survives until today. Here we designate and describe a neotype for T. nicoleti. We revalidate Colonus F.O.P.-Cambridge, 1901 and Nilakantha Peckham & Peckham, 1901 to transfer most species formerly placed in Thiodina. The combinations Colonus puerperus (Hentz, 1846), Nilakantha cockerelli Peckham & Peckham, 1901 and N. peckhami Bryant, 1940 are restored. The following new combinations are established: Colonus branicki (Taczanowski, 1871) new comb., C. candidus (Mello-Leitão, 1922) new comb., C. germaini (Simon, 1900) new comb., C. hesperus (Richman & Vetter, 2004) new comb., C. melanogaster (Mello-Leitão, 1917) new comb., C. pallidus (C.L. Koch, 1846) new comb., C. pseustes (Chamberlin & Ivie, 1936) new comb., C. punctulatus (Mello-Leitão, 1917) new comb., C. rishwani (Makhan, 2006) new comb., C. robustus (Mello-Leitão, 1945) new comb., C. sylvanus (Hentz, 1846) new comb., C. vaccula (Simon, 1900) new comb., C. vellardi (Soares & Camargo, 1948) new comb., Nilakantha beugelorum (Wolff, 1990) new comb., N. crucifera (F.O.P.-Cambridge, 1901) new comb., and N. inerma (Bryant, 1940) new comb. Thiodina setosa Mello-Leitão, 1947 is tentatively transferred to Cotinusa Simon, 1900.