Title
Contributions to the knowledge of the Laniatores (Arachnida: Opiliones: Grassatores) of the department of Loreto, Peru.
Author(s)
Ayala-Apaza, Arli; Silva-Dávila, Diana
Published
2021
Publisher
Revista Peruana de Biología
Abstract
In this paper we present an analysis of the state of knowledge and richness of Laniatores opiliones from the department of Loreto; in general, little known arachnids in the Peruvian Amazon. For this purpose, we reviewed the relevant literature and examined the collection of the Natural History Museum of the Universidad Nacional Mayor de San Marcos, Lima, Peru. The results show 72 species distributed in 11 families. The most diverse families were Cosmetidae (34 spp.), Cranaidae (11 spp.) and Stygnidae (8 spp.). Although there is insufficient information, samples from the Samiria River (23 species, 11 families) suggest a very high degree of local endemism, 10 species are restricted only to this locality. With this work, 52 species of Laniatores are added to the 19 previously recorded in the literature for the department of Loreto and the families Biantidae, Samoidae and Stygnommatidae are recorded for the first time in Peru. Twelve are reported here for the first time for Peru: Cocholla simoni Roewer, Cynorta marginalis Banks, Discosomaticus cinctus (Perty), Meterginus serratus Roewer, Paecilaemula argentinoi Soares, Sibambea rotunda Roewer, Taito insperatus Kury & Barros, Taito rorschachi Kury & Barros, Ventripila marginata Roewer, Hutamaia plei Tourinho & Mendes, Obidosus boibumba (Villarreal & Pinto-da-Rocha), and Stenostygnus pusio Simon.

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PUB35617