Guild Wars 2

I think I have all the requirements for crafting Lepidoptera: that is, an ambrite fossilized butterfly, an ori axe blade, a small ancient haft and a Nomand’s ori imbued inscription. I have 500 weaponsmith but when I go to craft it, neither the fossilized butterfly nor the inscription show up in the Discovery panel. Can anyone tell me what I am missing? thanks

It’s not a discovered recepie, you have to buy it. It’s available at t4+.