If you want to knock out and tame a maewing, use the net projectile and net it. If you don't, one hit makes it flee and it'll fly away into the sky and you'll have to chase it. The net immobilizes it so you can take your time knocking it out.
I decided that I wanted to go in blind so when I first saw this cute little guy I was like awwwh! Then shoot it in the face with a sleepy dart and ran only to look back in confusion because it was gone only to be told by a friend they passive flee tame lol got a low level 20 with one shot. Kinda janky but cute af