S. itasca 6. S. velata and S. itasca 8. We also have records of two other species and it seems likely that three others may be found here. Adults of most species are active during the evening hours and some are attracted to lights. The eggs are laid in masses, mostly on objects overhanging the water.
Some species cover the egg mass with a soft white or light brown material.
The larvae are found in a wide variety of aquatic habitats. They feed on a wide variety of small aquatic invertebrates. Pupation occurs in the soil or in rotten logs or stumps near the larval habitat. The life cycle can range from two to five years. Key to the genera References Top of page Table of Contents Home 1.