An Overlooked Species of Enigmatic Wolf Spider (Araneae: Lycosidae) Clarifies the Mysterious Distribution of its Sibling

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  An Overlooked Species of Enigmatic Wolf Spider (Araneae: Lycosidae) Clarifies the Mysterious Distribution of its Sibling Abstract Several wolf spiders exhibit a peculiar geographical distribution. One good example of this is Pardosa aenigmatica Tongiorgi, 1966, recently recognized in Italy and the Middle East but missing in the Balkans. A comparison of populations from the disjunctive areas revealed that they would be better described as two distinct species. As a result, here we describe Pardosa sepidehae sp. nov. The paper includes detailed descriptions and comparative illustrations of male and female copulatory organs for the newly discovered species and P. aenigmatica. Pardosa sepidehae sp. nov. is distributed in the Middle East, whereas P. aenigmatica remains endemic to the Apennine Peninsula. Adile Akpinar, Petr Dolejš "An Overlooked Species of Enigmatic Wolf Spider (Araneae: Lycosidae) Clarifies the Mysterious Distribution of its Sibling," Annales Zoologici, 76(29), ...

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