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 the Hispaniolan endemic genus Antillena Bertani, Huff and Fukushima, 2017 (Araneae, Theraphosidae, Aviculariinae), with notes on the natural history of the genus

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A new species of the Hispaniolan endemic genus Antillena Bertani, Huff and Fukushima, 2017 (Araneae, Theraphosidae, Aviculariinae), with notes on the natural history of the genus

Abstract

Theraphosidae is the most speciose mygalomorph family, and its species are usually fossorial, but arboreal species are known in various subfamilies. One of these subfamilies, Aviculariinae, is composed exclusively of arboreal forms and is distributed in the Americas and the Caribbean. Seven genera of this subfamily were described in 2017, including the monotypic genus Antillena Bertani, Huff & Fukushima, 2017, which is endemic to the Dominican Republic. It presents some remarkable features concerning genitalia shape both in male and female, distinct from all other aviculariine species. Herein, we describe the second species of Antillena, A. miguelangeli sp. nov., along with field-note observations and new records for Antillena rickwesti Bertani & Huff, 2013. Males of the new species have a longer and slender embolus on the bulb, and the keels are poorly developed. Females have the spermathecae plateau-shaped with its distal sclerotized half of an elliptical appearance. The new species also represents the first record of this genus from the northern region of Hispaniola.

Santos, G. de los & Bertani, R. (2024). A new species of the Hispaniolan endemic genus Antillena Bertani, Huff and Fukushima, 2017 (Araneae, Theraphosidae, Aviculariinae), with notes on the natural history of the genus. Zootaxa 5493(4): 419-430. doi:10.11646/zootaxa.5493.4.7