Aislamiento filogenético de la araña saltarina Amilaps olivacea, con notas sobre su morfología e historia natural (Salticidae: Spartaeinae: Lapsiini)
DOI:
https://doi.org/10.22201/ib.20078706e.2026.97.5803Palabras clave:
Grutas de Coconá, Topografía kárstica, Filogenia, Sistemática, TaxonomíaResumen
La araña raramente vista Amilaps mayana Maddison, 2019 ha sido uno de los saltícidos filogenéticamente más enigmáticos, ya que no se conocen sinapomorfías que la relacionen con ningún otro clado de saltícidos. En una recolecta reciente en el sur de México se encontraron ejemplares activos de esta especie sobre roca caliza, cerca de la entrada de cuevas. Se llevó a cabo un análisis filogenómico basado en elementos ultraconservados (UCEs), cuyos resultados muestran que Amilaps pertenece a la tribu Lapsiini y dados los resultados de un análisis de divergencia preliminar, se puede suponer que es el grupo hermano de todos los demás lapsiinos conocidos. Lo cual sugiere que Amilaps es una de las especies de saltícidos filogenéticamente más aisladas que se conocen. En esta contribución se describe la hembra, se presentan fotografías de ejemplares vivos y se aportan detalles de su historia natural, por primera vez. El descubrimiento de la hembra revela que Amilaps mayana es un sinónimo de Sidusa olivacea F.O. Pickard-Cambridge 1901, syn. nov., por lo que se propone la nueva combinación Amilaps olivacea (F.O. Pickard-Cambridge, 1901), comb. nov.
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