Free PDF Bug Book

[jmoore]

Here is a good book about aquatic insects that you can download for free. It is broken up into chapters based on the different Orders of insects and offers identification to the Family level of most aquatic insects.

Guide to Aquatic Invertebrates of the Upper Midwest

 

[sqerl]

Great link. It got me to thinking and found some other resources:

Aquatic Invertebrates Illustrated Field Guide
http://info.wlu.ca/~wwwbiol/bio305/Database/Categories.htm
- lots of good pictures here
(note this is for Southern Ontario)

Lackawanna River Corridor Association - Macroinvertebrates
http://www.lrca.org/pages/macroinvertebrates/pages/Macroinvertebrates.htm
(at least its more local)