An Illustrated Guide to the Mountain Streams Insects of Colorado, Second Edition

This updated second edition of An Illustrated Guide to the Mountain Stream Insects of Colorado is a must-have for anglers, naturalists, and students of aquatic entomology. Featuring over 100 detailed illustrations and updated taxonomy, this compact field guide helps readers identify the key aquatic insects found in Colorado’s mountain streams—mayflies, caddisflies, stoneflies, midges, and more.

Written and illustrated by experienced entomologists, the guide includes life cycle insights, hatch timing, and matching-the-hatch tips to support both scientific study and effective fly selection. Durable and highly portable, it’s the perfect companion for streamside reference or classroom use.