What you have to do to tame this fat caterpillar is freeze it with a snow owl keep freezing it until its knocked out
Use a snow owl to deflate the gasbags and keep them from flying away and you heal them so you wont kill them with tranqs.
Just net gun them and tranq until they turn sideways just be prepared for a fairly long wait to tame unless using superior kibble :)
You can use a harpoon launcher with net projectile to keep these still whilst you knock them out.
They spawn in lunar caves on genesis and the wasteland on extinction
Use 6 or more stone dino gates like you would on argy (after update) to trap- with 2 doors on the end, then pump full of tranq darts.
Best way to tame on gen 2 use jet pack and follow it and shoot it with tranq arrows
5 MINUTE GASBAGS TAMING
1. Get 3 wood dino gates and 2 gate doors
2.use a snow owl to freeze da gasbags
3.build the gates and put a door on each side
4. Knockout gasbags and feed mejo berries
5.BAM. tamed gasbags.
3atone gates and 2 stone pillars at each end to hold them in. Easy easy. They will follow you right in after the first shot.
Who thinks the bottom of this looks like a cow?