References and Keys

The following are great resources for anyone (novice to professional) interested in aquatic invertebrates. Excellent illustrations and keys assist with identification to the family level:

These next two references are a bit more technical and include keys to the genus level, but still contain a wealth of information useful to anyone with interest in the field. The first deals with only insects, and the second addresses almost all freshwater invertebrates except insects:

The following provide excellent regional information and keys to genus level for aquatic insects. The 1975 publication can be downloaded free and the updated (1995) version can be ordered on-line at a very reasonable price:

The following discuss Iowa Mayflies and Stoneflies: