On the genus Ananteris Thorell, 1891 in French Guiana, with description of a new species (Scorpiones: Ananteridae)

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  On the genus Ananteris Thorell, 1891 in French Guiana, with description of a new species (Scorpiones: Ananteridae) Abstract One new species belonging to the genus  Ananteris  Thorell is described from the foot of the Mount Grand Matoury, French Guiana. The description of this new species brings further evidence about the biogeographic patterns of distribution presented by most species of the genus  Ananteris , which are highly endemic in many natural formations of South America and in particular in French Guiana. The new taxon described here raises the number of known species for the genus  Ananteris  in French Guiana to 13, and the total number of currently recognized species for the genus to 100. A geographical distribution map of the species occurring in French Guiana is presented and an identification key is proposed. Ythier E. & Lourenço W. R., 2026. – A propos du genre  Ananteris  Thorell, 1891 en Guyane Française, avec la description ...

When the predator becomes the prey: new records of intraguild predation among Central American and Caribbean arachnids (Arachnida: Amblypygi, Araneae, Scorpiones)

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When the predator becomes the prey: new records of intraguild predation among Central American and Caribbean arachnids (Arachnida: Amblypygi, Araneae, Scorpiones)


ABSTRACT


Intraguild predation occurs when an organism preys on a competitor. This ecological interaction can have considerable consequences on the population dynamics of predators and indirectly affect their prey. In arachnids, it is a quite common phenomenon, but it has been poorly documented in the Neotropical region. Here, we present records of 16 species feeding on other 14 species of arachnids. The most common families that acted as predators were Buthidae (Scorpiones) and Salticidae (Araneae), while the most common prey were members of the families Araneidae and Ctenidae (Araneae). In our survey, Drake Bay, in Costa Rica, is overrepresented due to years of systematic observations by two of the coauthors.

Alex M. Cubas-Rodríguez, Darko D. Cotoras, Andrés Taucare‐Ríos, Luis F. de Armas, Antonio D. Brescovit, Gianfranco Gómez & Tracie L. Stice (09 Jul 2024): When the predator becomes the prey: new records of intraguild predation among Central American and Caribbean arachnids (Arachnida: Amblypygi, Araneae, Scorpiones), Studies on Neotropical Fauna and Environment, 
DOI: 10.1080/01650521.2024.2353007