New widow spider record of Latrodectus dahli Levi (Araneae: Theridiidae) extends known range in Northern Saudi Arabia

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  Image Credit: iNaturalist Photo 400937400, (c) Kian, some rights reserved (CC BY), uploaded by Kian, https://www.inaturalist.org/photos/400937400 New widow spider record of Latrodectus dahli Levi (Araneae: Theridiidae) extends known range in Northern Saudi Arabia ABSTRACT Researchers have documented the first confirmed occurrence of Dahl’s widow spider ( Latrodectus dahli vn Saudi Arabia’s Ha’il Region, extending the species’ known range into the country’s north. The finding fills an important gap in the spider’s Middle Eastern distribution and highlights how even medically important species remain under-documented in parts of the Arabian Peninsula. L. dahli Levi is a medically significant widow spider that is found in North Africa, Cyprus, Turkey, Azerbaijan, Kazakhstan, the Middle East, Iran and Central Asia. Prior to our work, there had been no records of it in northern Saudi Arabia although it had been found in central regions of Saudi Arabia such as Al Duwadimi, Riyadh and ...

Description of a new species of the genus Potosa Goodnight & Goodnight, 1947 (Opiliones: Laniatores: Stygnopsidae: Karosinae) from Hidalgo, Mexico

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Description of a new species of the genus Potosa Goodnight & Goodnight, 1947 (Opiliones: Laniatores: Stygnopsidae: Karosinae) from Hidalgo, Mexico

Abstract

Potosa pisaflores sp. nov.is described based on specimens  collected  from  Cueva  del  Caracol,  Pisaflores,  Hidalgo, Mexico. This is the fourth species of the genus and only the second in which females have been collected. The new   species   is   similar   to   Potosa   dybasi   Goodnight   &   Goodnight,  1947,  but  it  can  be  recognized  by  the  high  number  of  tarsomeres  on  legs  II  and  the  general  shape  of  male genitalia.

Cruz López, Jesús Alberto. 2025. «Description of a New Species of the Genus Potosa Goodnight & Goodnight, 1947 (Opiliones: Laniatores: Stygnopsidae: Karosinae) from Hidalgo, Mexico ». ACTA ZOOLÓGICA MEXICANA (N.S.) 41 (1):1-8. https://doi.org/10.21829/azm.2025.4112769.