Larvae of the North American Caddisfly Genera (Trichoptera). 2nd ed.

Edward C. Becker is a scientist with the Eastern Cereal and Oilseed
Research Centre of Agriculture and Agri-Food Canada.

The text of this second edition has been virtually rewritten, with very
few paragraphs remaining unchanged from the 1977 edition, although the
same general style is retained, along with the original illustrations.

The classification is based on phylogenetic evidence, whereas the
families and genera are arranged alphabetically; consequently, the page
references given appear to be jumbled. The Trichoptera are currently
divided into three suborders and six superfamilies. Eight families and
13 genera are added.

The families and genera are arranged alphabetically, and some readers
may object to this approach; however, as pointed out in the volume’s
introduction, this book is primarily a reference work.

In general, for each genus, there is a page of text consisting of
information about its distribution and species (general distribution and
number of species worldwide and for North America), morphology, case or
retreat, biology, and remarks. On the opposite page are excellent
drawings of the mature larva, dorsum of head and thorax, legs, anal leg,
case if applicable, etc.

It is gratifying to read that of the 149 genera recognized in North
America, the larvae of at least one species are known for all but four
genera.

The number of references has nearly doubled, which is indicative of
activity among caddisfly workers. This, plus the fact that eight
families and 13 genera have been added, validates the need for this
revision. The book is highly recommended and worth the price.