A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala

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  A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala Abstract  A new species of the spider genus Euagrus Ausserer, 1875 from temperate pine-oak forests in the states of Tlaxcala and Hidalgo, Mexico is described: E. pulque sp. nov. The description of the new species is based on male and female adult specimens. Additionally, Euagrus gus Coyle, 1988 is recorded for the very first time in the state of Tlaxcala. These species have sympatric distributions in La Malinche National Park, Tlaxcala. With this description, the diversity of the genus increases to 23 species, with Mexico harboring the highest diversity with 17 described species.  Valdez-Mondragón, A., Salinas-Velasco, H. V. & Bueno-Villegas, J. (2026). A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala. Zootaxa 5810 (...

A new species of Dolomedes Latreille, 1804 (Araneae: Dolomedidae) from the island of New Guinea

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A new species of Dolomedes Latreille, 1804 (Araneae: Dolomedidae) from the island of New Guinea

Abstract

A new species, Dolomedes afi sp. n., is diagnosed and described from New Guinea Island (Papua New Guinea) based on both sexes. The new species is similar to the Australian species D. alexandri Raven & Hebron, 2018, D. vicque Raven & Hebron, 2018 and D. wollemi Raven & Hebron, 2018, but differs from them in the structure of the copulatory organs. The new species exhibits pronounced sexual dimorphism in body coloration. A detailed description and digital photographs are provided. The collecting localities of Dolomedes species in New Guinea are mapped.

Fomichev, A. A., & Omelko, M. M. (2026). A new species of Dolomedes Latreille, 1804 (Araneae: Dolomedidae) from the island of New Guinea. Acta Biologica Sibirica, 12, 355-365. https://doi.org/10.5281/zenodo.19563050