ITS BEETLE MANIA!!! There are 3500 species of beetles in the US and literally 1000s of species of flies and the like. Most have one thing in common other than size and color; SHAPE! The fish, both trout and warm water species see that shape all day and key on it. I tie them mostly in #12. If you want some smaller ones let me know. Check out the Fathead Beetle at www.riverhouseflyco.com. YIPPEE TIE ONE ON!