Based on the original Orvis Caddisfly Handbook, this wholly revised title is small and light enough to carry along for use on the water. Caddisflies are as crucial a trout food as mayflies or baitfish, and any serious trout angler needs to know these insects well. Detailed descriptions and photographs of the major caddisfly species will direct the angler toward correct insect identification and fly-pattern choice.

Derived from the classic Trout Stream Insects: An Orvis Streamside Guide, this fully revised text focuses exclusively on those mayfly species of most importance to fly fishers. The numerous color photographs, drawings, and insect-size silhouettes help the angler identify what’s hatching and compare that natural insect to what’s in the fly box. Designed to slip easily into a jacket or vest pocket, the trout angler will make much use of this book.