Comprehensive DescriptionRead full entry
BiologyInhabit gravel and rubble riffles of headwaters, creeks and small rivers. Also occur in springs and their effluents (Ref 5723, 10294). Young feed on aquatic insect immatures of many kinds, including caddisflies, mayflies, and midge larvae; adults on stonefly nymphs and maturing stages of other insects (Ref. 10294).