Advances on the taxonomy of Megalostrata Karsch, 1880 (Araneae, Corinnidae, Corinninae), with descriptions of two new species.

Two new species of Megalostrata Karsch, 1880 are described: M. paludosa spec. nov.

Four new spider species of Cubanops Sánchez-Ruiz, Platnick & Dupérré from Eastern Cuba (Araneae: Caponiidae).

Four new species of Cubanops are described from Eastern Cuba: C. chamarreta sp. nov.

Taxonomic revision of the soldier spider genus Falconina Brignoli, 1985 (Araneae: Corinnidae: Corinninae).

The genus Falconina Brignoli, 1985 is revised and redescribed, including ten species. New records and documentation of morphological variation in F. gracilis (Keyserling, 1891) are presented; it and the type species, F.

Meeting the southern brothers: a revision of the Neotropical spider genus Hexapopha Platnick, Berniker & Vquez, 2014 (Araneae, Oonopidae).

The goblin spider genus Hexapopha Platnick, Berniker & Vquez, 2014 is revised. The four Costa Rican species recognized in the original description of the genus are re-diagnosed: H. reimoseri (Fage, 1938) (the type species), H.

A new species of Strotarchus Simon, 1888 from Honduras (Araneae, Cheiracanthiidae).

A new species, Strotarchus chamevazquezi sp. nov., is described based on both sexes from Department Francisco Morazán, Honduras.

On the symphytognathoid spider genus Mysmenopsis Simon, 1898 (Araneae: Mysmenidae) from the Brazilian Amazonian region: description of five new species and new records.

Five new species of Mysmenopsis from the Brazilian Amazonian region are described: M. rodriguesae n. sp.

Switching identities: a revision of the Afrotropical spider genus Carteronius Simon, 1897 (Araneae, Corinnidae), senior synonym of Mandaneta Strand, 1932, with a new genus of the Pronophaea group.

The genus Carteronius Simon, 1897 is transferred from Clubionidae to Corinnidae and recognized as the senior synonym of Mandaneta Strand, 1932, being the oldest available name for the pre-occupied Mandane Karsch, 1880. Upon comparing the respective type specimens, the type species of Carteronius and the type species of Mandaneta were found to represent the same species. Whence the type species Carteronius helluo Simon, 1896, is considered a junior synonym of the type species Mandaneta sudana (Karsch, 1880).

Taxonomic revision of the genus Tupirinna Bonaldo, 2000 (Araneae: Corinnidae: Corinninae).

The genus Tupirinna Bonaldo, 2000 is revised, including 20 species. New records of T. rosae Bonaldo, 2000 from Par, Brazil are given.

Twenty years, eight legs, one concept: describing spider biodiversity in Zootaxa (Arachnida: Araneae).

Zootaxa published more than a thousand papers on Araneae from 2002 to the present, including descriptions of 3,833 new spider species and 177 new genera. Here we summarise the key contributions of Zootaxa to our current knowledge of global spider diversity. We provide a historical account of the researchers that have actively participated as editors, and recognize the more than 1,000 reviewers without whom none of this would have been possible.

A new species of Trachelopachys Simon, 1897 (Araneae: Trachelidae) from Amazonia.

The genus Trachelopachys Simon, 1897 was erected to accommodate Trachelas sericeus Simon, 1886, a species known from southern South America. Platnick (1975) presented a taxonomic review of the genus and Platnick Rocha (1995) added a new species and transferred two additional species to the genus, raising the known species diversity of Trachelopachys to 15 species. The genus is distributed in South America, their members are small and colorful, and are distinguished from other trachelines by their darkened carapace, the S-shaped tegular sperm duct and the retrolaterally directed embolus of the male palp (Platnick 1975: fig 12), and the presence of a basal spermathecal lobe in females (Platnick 1975: fig 15).

The genus Syspira Simon, 1895 (Araneae: Miturgidae) from Hispaniola, with the description of four new species.

The species of Syspira Simon from Hispaniola are revised and detailed documentation is provided for all known species from this island. Four new species (Syspira alayoni sp. n.

Four new species of Myrmecium Latreille, 1824 and complementary description of M. machetero Candiani amp; Bonaldo, 2017 (Araneae: Corinnidae: Castianeirinae).

Four new species of Myrmecium Latreille, 1824 are described: M. urcuchillay sp. nov.

Revision of the spider genus Nyetnops Platnick amp; Lise (Araneae: Caponiidae) with proposition of the new genus Nopsma, from Central and South America.

The singular spider genus Nyetnops Platnick Lise is revised and three new species are described from Peru (Nyetnops naylienae n. sp.), Bolivia (Nyetnops lachonta n.

A revision of the new world goblin spider genus Cinetomorpha Simon, 1892 revalidated from Gamasomorpha Karsch, 1881 (Araneae, Oonopidae, Oonopinae).

The goblin spider genus Cinetomorpha Simon is removed from the synonymy of Gamasomorpha Karsch and treated as the senior synonym of Yumates Chamberlin and Lucetia Dumitresco Georgesco. All 41 species occur only in the New World, and the genus is divided into four species groups: the simplex group, the puberula group, the patquiana group and the itabaiana group. The following species are transferred to Cinetomorpha: C.

On a new species of the spider genus Attacobius Mello-Leitão (Araneae: Corinnidae) from Brazilian Cerrado.

At the time the genus Attacobius Mello-Leitão, 1925 was first acknowledged as a member of the subfamily Corinninae, Corinnidae, by Platnick Baptista (1995), only three species were recognized. Since then, that number has increased to 15 currently valid species (Bonaldo Brescovit 1998; 2005; Pereira-Filho et al. 2018).

Five new species and novel descriptions of opposed sexes of four species of the spider genus Attacobius (Araneae: Corinnidae).

Five new Brazilian species of the spider genus Attacobius Mello-Leitão, 1925 are described: A. demiguise n. sp.

Revisiting the spider genus Eutichurus Simon, 1897 (Araneae, Eutichuridae): new species and complementary descriptions.

Six new species of the genus Eutichurus Simon, 1897 are described: E. murgai new species (based on male and female) and E. paredesi new species (male) from Peru; E.

On the spider genus Syspira Simon, 1895 (Araneae: Miturgidae) in the Caribbean: four new species from Dominican Republic.

Four new species of Syspira Simon, 1895 are described: Syspira cimitarra sp. nov., Syspira jimmyi sp.

Spider species richness and sampling effort at Cracraft´S Belém Area of Endemism.

A list of spider species is presented for the Belém Area of Endemism, the most threatened region in the Amazon Basin, comprising portions of eastern State of Pará and western State of Maranhão, Brazil. The data are based both on records from the taxonomic and biodiversity survey literature and on scientific collection databases. A total of 319 identified species were recorded, with 318 occurring in Pará and only 22 in Maranhão.

Twenty-seven new species of the goblin spider genus Birabén, 1953 (Araneae: Oonopidae) from Brazil.

Twenty-seven new species of the genus Neoxyphinus are described, all from Brazil, raising the total number of species of the genus to 48. The new species with the respective geographic distribution and known sexes are: N. capiranga sp.

, a new genus of goblin spiders (Araneae: Oonopidae) from the Brazilian Amazon.

The new genus Amazoonops is proposed for a group of species from the Brazilian Amazon that belong to the Varioonops group, which is presently composed by Varioonops Bolzern & Platnick, Ponsoonops Bolzern and Bipoonops Bolzern. In these genera, female lacks the dorsal abdominal scutum, have a reduced abdominal post-epigastric scutum, and the male palp has unfused cymbium and tegulum. The incomplete abdominal epigastric scutum of females and the sternal surface covered with deep pits in both sexes are considered as putative synapomorphies of the new genus.

The superficial ant: a revision of the Neotropical ant-mimicking spider genus Latreille, 1824 (Araneae, Corinnidae, Castianeirinae).

The ant-mimiking spider genus Myrmecium Latreille, 1824 is revised, including 38 species, all herein diagnosed, described and illustrated. The following synonymies are proposed: Myrmecium aurantiacum Mello-Leitão, 1941 syn. nov.

More on the spider genus Xeropigo O.P.-Cambridge (Araneae, Corinnidae, Corinninae): seven new species and new records from Brazil.

Seven new species of the spider genus Xeropigo O. P.-Cambridge are described from Brazil, increasing the genus member list up to 16 species.

Description of eleven new species of the goblin spider genus Neoxyphinus Birabén, 1953 (Araneae, Oonopidae).

The spiders of the genus Neoxyphinus Birabén differ from those of other oonopid genera by the male endites with an api-cal, retrolateral excavation bearing a subapical tooth-like apophysis and, in females, by the ellipsoid genital atrium, with angular lateral margins. In this paper, eleven new species of the genus are described, mainly from northern South America: N. amazonicus Moss & Feitosa, sp.

Taxonomic review of the New World spider genus Elaver O. Pickard-Cambridge, 1898 (Araneae, Clubionidae).

Elaver O. Pickard-Cambridge, 1898 is characterized and redescribed, including 49 species occurring from the United States to Argentina. Thirty seven previously known species are redescribed: Elaver achuca (Roddy, 1966) revalidated, E.