A new species of the genus Spinoctenus Hazzi, Polotow, Brescovit, González-Obando et Simó, 2018 (Araneae: Ctenidae) from Panama

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  A new species of the genus Spinoctenus Hazzi, Polotow, Brescovit, González-Obando et Simó, 2018 (Araneae: Ctenidae) from Panama A new species Spinoctenus leleji sp. n . is described from Panama based on a male specimen. This is the first record of the genus Spinoctenus from Panama and the second record of this genus outside South America. The new species is most similar to S. tequendama Hazzi, Polotow, Brecovit, González-Obando et Simó, 2018, but differs by the structure of the male palp and the shape of metatarsus IV. Photographs of the habitus and copulatory organs are provided. The type locality of the new species is mapped. Omelko, Мichail M. 2026. A new species of the genus Spinoctenus Hazzi, Polotow, Brescovit, González-Obando et Simó, 2018 (Araneae: Ctenidae) from Panama. Far Eastern Entomologist(554): 19-24.  https://biosoil.ru/fee/publication/2988

Natural history of two spider species of the genus Phonotimpus (Araneae: Phrurolithidae) endemic to Chiapas, Mexico

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Natural history of two spider species of the genus Phonotimpus (Araneae: Phrurolithidae) endemic to Chiapas, Mexico

Abstract

Phonotimpus pennimani and P. talquian (Phrurolithidae) are common spider species inhabiting leaf litter in tropical environments of Chiapas, Mexico. This study summarizes laboratory and field observations on their natural history. Both species were observed preying on Tomoceridae springtails in the field and exhibited a preference for springtails in laboratory conditions. Both species continued feeding well beyond maturity, and juveniles were capable of subduing large springtails. Females continued feeding even while guarding their egg sacs. Both species constructed disk-like egg sacs and guarded them until offspring emergence, demonstrating maternal care. Juveniles and penultimate instars typically constructed retreats for molting. Additionally, we documented the parasitism on P. pennimani eggs by a Scelionidae wasp.

Chamé-Vázquez, David, Ibarra-Núñez, Guillermo, & Jiménez, María-Luisa. (2025). Natural history of two spider species of the genus Phonotimpus (Araneae: Phrurolithidae) endemic to Chiapas, Mexico. Acta zoológica mexicana, 41, e2714. Epub 20 de mayo de 2025.https://doi.org/10.21829/azm.2025.4112714