I tamed the lymantria in early game valguero and it was actually quite easy. All you need to do is use a bola (I used a normal one) and then keep attacking it with a club and it should get knocked out in couple of hits. However, if your trying to tame a higher level one, bring multiple bolas. The saddle is quite cheap so it can be utilised early game.
For an easy tame, wait for the Lymantria to land and then place a tent directly where he/she is at. Its stuck until the tents durability dies out, this gives you enough to build a little house around it for a safe, easy tame.
Sounds unlikely but quite true...I own a high level moth with beautiful scarlet wings. It was following me set to attack target when I encountered 3 raptors & a carno. While I was piking the rappies to death my lymantria actually killed that carno plus harvested its meat & hide. AWESOME little beast❗
With teamwork, it can be used to help tame other animals. One team member on Lymantria, the other ones shooting tranq. The slow effect is 90%, therefore, plenty to slow down any creature enough for a person to type it while shooting tranq shots.
Had a lvl 95 with 800+ health and a lvl 10 poison wyvern attacked and the moth was going to town, it didnt kill tge wyvern but it put up a hell of a distraction for me and my boys to get the stuff to kill it .......worth the tame tbh
Don't attack it unless u have a plan a good one is to wait for it to land, throw a normal bola at it, then shoot tranq arrows at its head until it passes out, then feed it mejoberries or any type of berries, you may want to build a house around it to protect you and the lymantria from storms