Other
Bugbios: Class Insecta
See pictures of many different butterfly wing patterns and read about the individual butterflies.
University of Michigan
University of Michigan Critter Catalog: Insects
A thorough site that provides a description of the characteristics of insects and then focuses on the insects of southeastern Michigan. Pictures, classification groupings, and sound clips of insects are included.
Other
Billy Bear4 Kids: Butterflies and Bugs
BillyBear4Kids.com is a great butterfly resource with links to butterfly cut-outs, flashcards, bookmarks, crafts, online games, and more. Scroll down for reproducibles.
Regents of the University of Michigan
Animal Diversity Web: Class Insecta
The Animal Diversity Web surveys the general characteristics of the insect class and features such topics as habitat, anatomy, body systems, reproduction, and development.
BiologyWise
Biology Wise: Chitin: Structure, Function, and Uses
Chitin is a biopolymer that gives rigidity to exoskeletons and other protective structures of organisms, thereby preventing injury to soft internal tissues and other parts. Its chemical structure is shown and its functions are described.