Can You Identify????

Give a shot at unravelling this image, courtesy of my fishing bud Thomas Reckling, the Belizean Fly Fishing World Champion of 2009, El Pescador Lodge, along with fishing partner, fellow Champion and friend Mark Elliot, may the good Lord keep his spirit close. "Click" the image for a closer look. Leave your guess....
Hint: this species has been known to drive people to drink. In my case, I was so moved I was driven to STOP drinking by this species. No kidding.....