A very interesting bug. Aside from the colouration it has fuzz on part of its antennae, and horns/ spikes on its back. Another photo from the side in comments.
Interesting! Do you know what bug it is? Where are you located, btw?
Aristobia horridula, a common tuft bearing longhorn beetle. OP is probably from east Asia.
I have no idea, would love to know though. Lived here for years and this is the only one I have seen. Southwest Cambodia, near Sihanoukville. Sorry, should have added that before.
Sorry, took me a bit to reply and didn’t refresh the page in between. See my reply to him. https://fedia.io/m/[email protected]/t/599996/A-bug#entry-comment-4034135
Wow! What an interesting critter! Thaks for sharing! :)
https://www.inaturalist.org/taxa/708945-Aristobia-freneyi
Another user named it in a comment thread, but I used Google Lens to pull up a link.