A bit of a Google search on the distinguishing characteristics of butterflies versus moths helped me out a bit but I don’t think it was quite as clear cut as I was hoping.  We have a fluttering insect that seems to like our lavender plants a lot.  I spent a little time one evening trying to get some shots of them at work.  They don’t stay on any one section for long so a little patience and luck is in order.  I didn’t know whether they were moths or butterflies.  I think that they might be butterflies but, if they aren’t please don’t be too harsh in the comments.