Silkmoths are tricky to catch and kind of rare (at least I think so since I rarely see them), so why not implement a silkmoth net?
It would be equipped the same way as tools/weapons but it would require two hands to use it. Perhaps the "Catch" command could be added to the attack section under combat. Or another alternative would be just clicking on and chasing the silkmoth and it would be easier to catch it when the net is equipped. I'm not sure which would be best.
Either way, I believe that the silkmoth net would be a neat addition to the game
Maybe we can even add other types of butterflies, although I do not know what use they could be. *shrugs* Just a thought! 
