DO NOT BRING BUGS ANYWHERE NEAR THIS GUY! I was coming back home from the redwoods with some new times riding on my scorpion and I tried to just pass by him but he immediately aggroed my scorpion and all of my other tames. 15 tames died in a matter of seconds. Only the level 80+'s survived.
If you see these and you are not riding at least a t-rex, RUN! these guys deadl INSANE amounts of damage, the one lvl. 50 killed my 2 lvl. 150 ankylos and a lvl. 200 pt. I needed to move couse of these things in extinction. And dont get near them, if you dont want to get killed of course.