Notes on Indian wolf spiders: IV. Transfer of species previously included in the genera Crocodilosa Caporiacco, 1947 and Geolycosa Montgomery, 1904 (Araneae: Lycosidae)

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  Notes on Indian wolf spiders: IV. Transfer of species previously included in the genera Crocodilosa Caporiacco, 1947 and Geolycosa Montgomery, 1904 (Araneae: Lycosidae) The enigmatic Crocodilosa Caporiacco, 1947 sensu lato currently consists of five nominal species distributed in Africa and Asia (World Spider Catalog 2026). It was established for C. kittenbergeri Caporiacco, 1947, with a superficial generic diagnosis relying only on somatic features such as length of eye rows, leg spination and relative leg lengths (Caporiacco 1947). Roewer (1955), following Caporiacco’s (1947) generic diagnosis, drastically increased the number of Crocodilosa species by transferring several species from other lycosid genera, but most of these subsequently added species were later reassigned to their appropriate genera (World Spider Catalog 2026), highlighting the need for a re-examination of the type species and remaining congeners to clarify the validity of Crocodilosa. At present, the genus ha...

Hypersensitivity vs. uncommonly severe local envenoming by the red-back spider, Latrodectus hasselti Thorell, 1870 (Araneae: Theridiidae)

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Hypersensitivity vs. uncommonly severe local envenoming by the red-back spider, Latrodectus hasselti Thorell, 1870 (Araneae: Theridiidae)

Highlights

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    Widow spider envenoming commonly causes a recognizable syndrome, latrodectism

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    Common features include pain, diaphoresis, myalgia, autonomic effects

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    34-yr-old woman envenomed by red-back spider (Latrodectus hasselti) developed severe local edema

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    Patient had a history of previous L. hasselti envenoming treated with antivenom

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    Patient was effectively treated with antivenom

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    Full resolution required one week

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    Mixed atopy and venom-induced effects should be considered in some envenomed patients

Weinstein, S. A. (2024). Hypersensitivity vs. Uncommonly severe local envenoming by the red-back spider, Latrodectus hasselti Thorell, 1870 (Araneae: Theridiidae). Toxicon, 108077. https://doi.org/10.1016/j.toxicon.2024.108077