New and noteworthy host records for some North American and Colombian spider wasps (Hymenoptera: Pompilidae)

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  New and noteworthy host records for some North American and Colombian spider wasps (Hymenoptera: Pompilidae) Abstract New and noteworthy parasitoid/host records for 47 North American and Colombian species and subspecies of spider wasps (Hymenoptera: Pompilidae) are listed in taxonomic order following the Catalog of Hymenoptera in America North of Mexico (Krombein 1979). Te records represent an extension of previous host studies by Kurczewski and various co-authors. New genus and/or species host records are given for the genera and subgenera  Calopompilus  Ashmead,  Pepsis  Fabricius,  Hemipepsis  Dahlbom,  Priocnessus  Banks,  Entypus  Dahlbom,  Cryptocheilus  Panzer,  Priocnemissus  Haupt,  Caliadurgus  Pate,  Dipogon  Fox,  Phanagenia  Banks,  Auplopus  Spinola,  Ageniella  Banks,  Aporus  Spinola,  Episyron  Schiødte,  Poecilopompilus...

Clinical outcomes in a murine model after envenoming by the Amazonian scorpions Tityus strandi and Tityus dinizi

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Clinical outcomes in a murine model after envenoming by the Amazonian scorpions Tityus strandi and Tityus dinizi

ABSTRACT


The Brazilian Amazon is home to a rich fauna of scorpion species of medical importance, some of them still poorly characterized regarding their biological actions and range of clinical symptoms after envenoming. The Amazonian scorpion species Tityus strandi and Tityus dinizi constitute some of the scorpions in this group, with few studies in the literature regarding their systemic repercussions. In the present study, we characterized the clinical, inflammatory, and histopathological manifestations of T. strandi and T. dinizi envenoming in a murine model using Balb/c mice. The results show a robust clinical response based on clinical score, hyperglycemia, leukocytosis, increased cytokines, and histopathological changes in the kidneys and lungs. Tityus strandi envenomed mice presented more prominent clinical manifestations when compared to Tityus dinizi, pointing to the relevance of this species in the medical scenario, with both species inducing hyperglycemia, leukocytosis, increased cytokine production in the peritoneal lavage, increased inflammatory infiltrate in the lungs, and acute tubular necrosis after T. strandi envenoming. The results presented in this research can help to understand the systemic manifestations of scorpion accidents in humans caused by the target species of the study and point out therapeutic strategies in cases of scorpionism in remote regions of the Amazon.


Martins, J. G., Reis, M. B., Zuanazzi, B. A., Bordon, K. D. C. F., Zoccal, K. F., De Lima Procópio, R. E., & Arantes, E. C. (2024). Clinical outcomes in a murine model after envenoming by the Amazonian scorpions Tityus strandi and Tityus dinizi. Toxicon, 107797. https://doi.org/10.1016/j.toxicon.2024.107797