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 (...

New data on spiders (Arthropoda, Arachnida, Araneae) of Georgia with description of a new species from Tegenaria lyncea group

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New data on spiders (Arthropoda, Arachnida, Araneae) of Georgia with description of a new species from Tegenaria lyncea group

Abstract

In this paper we present new faunistic and regional data on the Agelenidae, Gnaphosidae, Linyphiidae, and Lycosidae of Georgia. Tegenaria hasperi Chyzer, 1897 (Agelenidae), Archaraeoncus prospiciens (Thorell, 1875), Trichoncoides piscator (Simon, 1884) (both Linyphiidae), and Aulonia kratochvili Dunin, Buchar & Absolon, 1986 (Lycosidae) are reported for the first time from Georgia. Echemus levyi Kovblyuk & Seyyar, 2009 (Gnaphosidae) is reported for the first time from the Caucasus region. Tegenaria pseudolyncea (Guseinov, Marusik & Koponen, 2005) (Agelenidae) is documented in Georgia outside the Samachablo region for the first time. Marinarozelotes malkini (Platnick & Murphy, 1984) (Gnaphosidae) is recorded in the Southern Caucasus for the second time. Lastly, a new species from the Tegenaria lyncea group, T. amirani sp. nov. is described based on both male and female specimens from Georgia. Diagnostic illustrations, photographs of a live T. hasperi female, and images of T. amirani sp. nov. are provided along with detailed collecting data.

Seropian A, Ninua L, Rostiashvili I, Bulbulashvili N, Makharadze G (2025) New data on spiders (Arthropoda, Arachnida, Araneae) of Georgia with description of a new species from Tegenaria lyncea group. Caucasiana 4: 65-80. https://doi.org/10.3897/caucasiana.4.e151922