Construct a Key
This page was created through funding from the
Land Stewardship Project, (LSP), a non-profit organization committed to consulting nature to develop more ecologically sustainable agriculture and human communities. Support was also provided by the Minnesota Department
This page was designed by Brian Nerbonne. Comments are welcome.
Many of the keys used to identify aquatic invertebrates do not include images of organisms, or the images they do include are of taxa from different parts of the country. This page contains images of the larvae of several families of organisms commonly found in streams. If you know that a particular organism is found in your stream and you want to create visual aids to help others in identification, copy these images and print them out for distribution. Images are grouped by Order.
Caddis Fly (Tricoptera) Larvae
Beetles (Coleoptera) Larvae and Adults
Dragon and Damsel Flies (Odonata) Larvae
Flies and Midges (Diptera) Larvae
Dobson and Alderflies (Megaloptera) Larvae, a.k.a. Hellgramites