These guys are almost everywhere! Don’t leave a low health tame on its own and on passive when you go and do whatever because when you come back it will probably have been eaten by dilos. Unfortunately I am speaking from experience. RIP Aragorn the equus
They make a distinct aggro sound when they lock onto you, keep this in mind when one is nearby. They are easily outrun and with very little practice you can avoid their arcing acid attack. Spears/arrows to he head are very effective
Ever seen Jurassic Park? If not be aware, to the average new player they seem like an easy hunt. But do not let their small size fool you. These creatures can hurt even high level players. If you have to fight one try jumping around a lot to avoid getting blinded. Good luck!