From Taxonomic Accuracy to Toxin Naming: A Welcome Dialogue in Toxicon

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  From Taxonomic Accuracy to Toxin Naming: A Welcome Dialogue in Toxicon By Luis A. Roque | Arácnido Taxonomy When I submitted my correspondence, “When tarantula venom comes from a misnamed spider: The importance of taxonomic accuracy in theraphosid toxinology,” to Toxicon , I hoped it would encourage a broader conversation. The purpose was to draw attention to a problem that benefits from the experience of people working across taxonomy, venom research, and biological databases. Dr. Volker Herzig’s response, “The need for a unified toxin nomenclature for consistent toxin naming,” is precisely the kind of engagement I hoped to see. His contribution acknowledges the importance of identifying venom-source organisms accurately while bringing another essential question into focus: How do we maintain continuity in toxin names when taxonomy and our understanding of toxin function change? Two connected challenges My original correspondence focused on the biological source of venom. In t...

New species of Jambu Miglio, Perafán & Pérez-Miles, 2024 and Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007 (Araneae: Theraphosidae) from Brazil, with notes on Hapalopus Ausserer, 1875

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New species of Jambu Miglio, Perafán & Pérez-Miles, 2024 and Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007 (Araneae: Theraphosidae) from Brazil, with notes on Hapalopus Ausserer, 1875

Abstract

Two new species of Brazilian Amazon theraphosids are described. A new species of Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007, Guyruita tepequem sp. nov. is described based on a male from the State of Roraima. It differs from all other Guyruita species by the male palp having the bulb embolus with a distal torsion and the color pattern with an ovoid large clear spot on the center of the abdomen dorsum. A new species of Jambu Miglio, Perafán & Pérez-Miles, 2024, Jambu yanomami sp. nov., is herein described based on male and female from the State of Amazonas, Brazil. Jambu yanomami sp. nov. differs from those of all other congeners by the male palp lacking a paraembolic apophysis on the ring-shaped keel and a short embolus, whereas the female is unique in the spermathecae having two separate receptacles. After examining the female holotype of Proshapalopus variegatus Caporiacco, 1955, presently included in Hapalopus Ausserer, 1875, we transfer the species to Chromatopelma Schmidt, 1995 and consider it a junior synonym of Chromatopelma cyaneopubescens Strand, 1907.

Santos, N.A.S., Almeida, M.Q., Morais, J.W.D. & Bertani, R. (2025) New species of Jambu Miglio, Perafán & Pérez-Miles, 2024 and Guyruita Guadanucci, Lucas, Indicatti & Yamamoto, 2007 (Araneae: Theraphosidae) from Brazil, with notes on Hapalopus Ausserer, 1875. Zootaxa, 5660 (2), 243–254. https://doi.org/10.11646/zootaxa.5660.2.5