The British caddisflies (Trichoptera) are often viewed as a difficult group. While the larvae can be found in most freshwater habitats, the adults are a different matter, with some species only on the wing of a few weeks of the year, and many active only at night. All this can make collection and study much more of a challenge.
This new guide by Stuart Crofts has been especially written to introduce those who want to get to know adult caddisflies, aiming to get the user to precise and consistent family level identifications, with the key allowing logical and simple progression in identification.