that time of year, you're gonna be into some BWO, blue quill, or quill gordon hatches. or you may have no hatches at all. it's unpredictable. I'd come armed with BWO's in #16-18, quill gordons in #12, and blue quills, maybe a #16 give or take a size. the adams will generally imitate these as well. as for nymphs, you'll have to ask someone else. by march I'm usually chomping at the bit for dry fly action.