Butterfly-predacious Hornets

[Liz Day]

Doug Y. (I think) told me they eat the thoraces because that's where the
most muscles (flight muscles) are, for protein.

I dont' think hornets or yellow jackets are really that bad, they eat
caterpillars but I think most of those are "pest" caterpillars.  I haven't
SEEN them going for our butterflies, but that doesn't mean they aren't.

Would a hornet nest really affect the butterfly population near it?

Liz D.