Ovophis tonkinensis envenoming presenting with severe isolated thrombocytopenia and local necrosis: A case report

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  Image Credit: iNaturalist (c) randall_f –  some rights reserved (CC BY-NC) Ovophis tonkinensis envenoming presenting with severe isolated thrombocytopenia and local necrosis: A case report Abstract Pit viper envenoming commonly causes venom-induced consumption coagulopathy with hypofibrinogenaemia. However, isolated thrombocytopenia without fibrinogen depletion is less recognised and may alter transfusion strategy. We report a confirmed  Ovophis tonkinensis  bite from northern Vietnam presenting with severe isolated thrombocytopenia and local necrosis. The case highlights the importance of serial platelet monitoring, awareness of fibrinogen availability and appropriate timing of antivenom and platelet support in resource-limited tropical settings. Duc ND, Hong Anh LN, Hong Khanh LN, Bach ND. Ovophis tonkinensis envenoming presenting with severe isolated thrombocytopenia and local necrosis: A case report. Tropical Doctor . 2026;0(0). doi: 10.1177/00494755261435153

Report of giant vinegaroon (Thelyphonida: Thelyphonidae) predation by scorpion (Scorpiones: Buthidae) in Mexican tropical dry forest

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Report of giant vinegaroon (Thelyphonida: Thelyphonidae) predation by scorpion (Scorpiones: Buthidae) in Mexican tropical dry forest

Abstract
This study reports the first documented case of predation of an early instar thelyphonid, Mastigoproctus sp., by the scorpion Centruroides elegans in a dry tropical forest in Mexico. The overlap in microhabitats between these two species suggests that their encounters are facilitated by the errant behavior of C. elegans. Our findings contribute to the understanding of the ecological dynamics involving thelyphonids and highlight the vulnerability of juvenile stages to predation, expanding the known predators of these arachnids. 
André F. A. Lira, Oscar G. del-Pozo, Gerardo A. Contreras-Félix, Report of giant vinegaroon (Thelyphonida: Thelyphonidae) predation by scorpion (Scorpiones: Buthidae) in Mexican tropical dry forest, Acta Arachnologica, 2025, Volume 74, Issue 2, Pages 123-124, Released on J-STAGE December 11, 2025, Online ISSN 1880-7852, Print ISSN 0001-5202, https://doi.org/10.2476/asjaa.74.123, https://www.jstage.jst.go.jp/article/asjaa/74/2/74_123/_article/-char/en