Berlandiella Mello-Leitão, 1929 is currently composed of six Neotropical species, of which Berlandiella querencia Lise & Silva, 2011 is known only from female specimens; the other species of the genus were described based on both males and females. In this paper, we describe and illustrate Berlandiella zabelesp. nov., based on a few individuals collected in Sete Cidades National Park, Piracuruca and Brasileira, state of Piauí, Brazil. We illustrate and describe the previously unknown male of B. querencia, based on a specimen collected from Reserva Mocambo, Belém, state of Pará, Brazil. The taxa described herein have scopula in the tarsi and metatarsi, and the males have a cymbial process, characters recorded for the first time for the genus. Additionally, we present an updated diagnosis for Berlandiella.
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). Here we describe the 16th species of the genus, Trachelopachys camarapi sp. nov. (Fig. 1), known from both sexes and recorded in a natural savanna (Fig. 2) at Portel municipality, state of Pará, Brazil.
Five new species of Mysmenopsis from the Brazilian Amazonian region are described: M. rodriguesae n. sp. and M. nadineae n. sp. known by males and females, M snethlageae n. sp., M. lopardoae n. sp. and M. regiae n. sp. known only by males. Three species, M. cienaga Müller, 1987 (previously known from Peru and Colombia), M. penai Platnick & Shadab, 1978 (Ecuador and Colombia), and M. shushufindi Dupérré & Tapia, 2020 (Ecuador) are recorded for the first time in Brazilian Amazonian region. An additional record of M. penai from northeastern Brazil is included.
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