Spring is here. That means it’s March Brown time.
I saw a small hatch on the river last week. Here is one of them.
Western March Brown (Rhithrogena morrisoni)
I think it’s early, but our weather has been so mild I’m really not surprised. In fact, I was looking for them. I took one of my bug vials filled with Purel hand soap with me just in case. I’m glad I did. I take these back to my fly tying bench to match color and size.
Western March Brown mayflies (Rhithrogena morrisoni) are in the #12 – 14 size range. If you look at them from above, they appear a medium to dark brown. But that’s not what the fish see. The fly’s abdomen where I live is a reddish-brown. They might be different in the waters you fish. And their wings are very distinct…brown and mottled or some fly fishers would call it cathedral window-like.