Don't use a sword or any melee weapon because it breaks them and keep a distance and bring a long range weapon and if you hate bugs especially when they to the point of being a footipede instead of a centipede then that will always work but watch out for others too!
DO NOT ENGAGE OR YOU WILL DIE! I was hunting araneos when this thing came out of nowhere and three shot me! All my dimorphs were literally devoured when I came back. It is like centipedes in real life but instead of killing you slowly with poison it kills you with bites quickly. Do not equip anything lower than Chitin or you will get one shot. Make the up arrow green so people can know 🙏🏻