Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Brook Trout
Salvenilus fontinalis
This is a young of the year brook trout that I caught and released after a quick picture. I included it here since it's about of the size one might imitate with a streamer.
I apologize for the horrible quality of the picture; this was taken a year or two (and a camera or two) before I started Troutnut.com and learned how to do photography.
This fish was collected from unknown in Wisconsin on July 14th, 2003 and added to Troutnut.com by Troutnut on January 19th, 2006.