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That’s maybe an oriental spiny orbweaver (Gasteracantha geminata), according to its appearance and location. You can find many more observations of such spiders on iNaturalist: https://www.inaturalist.org/taxa/207992-Gasteracantha-geminata?locale=en-GB However, I don’t know what advantage there is to the “spines”. They are not the only species. There’s a ...


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Given the presence of a petiole and postpetiole, this is most likely a winged ant (drone or queen), such as this similar one here: https://bugguide.net/node/view/57281


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