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 (...

The occasionally broken tibial apophysis of male Oxyopes heterophthalmus (Latreille, 1804) (Araneae: Oxyopidae)

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The occasionally broken tibial apophysis of male Oxyopes heterophthalmus (Latreille, 1804) (Araneae: Oxyopidae)

Abstract and figures
The breakage of the distinctive laterally bent tibial apophysis found on the male palp of Oxyopes heterophthalmus (La-treille, 1804) has been discussed textually in prior works, but no illustrations of such palps have been published. We herein provide the first photographs of post-breakage palps, to aid future workers in recognising injured palps of this species, also discussing how such palps can be readily visually distinguished from teratological morphology. Rotura ocasional de la apófisis tibial del palpo en machos de Oxyopes heterophthalmus (Latreille, 1804) (Araneae: Oxyopidae).

Tchilinguirian, Julien & Sherwood, Danniella. (2025). The occasionally broken tibial apophysis of male Oxyopes heterophthalmus (Latreille, 1804) (Araneae: Oxyopidae). Revista Ibérica de Aracnología. 47. 155–157.