Drawing by Eva Engblom
Common name: Black Fly Hunter
Latin Name: Rhyacophila nubila (Insecta, Trichoptera, Rhyacophilidae)
Areas: The caddis flies Rhyacophilidae are common in many running waters in the northern hemisphere. They can also be found in litoral areas of well aerated lakes.
In Man and Water Rhyacophilidae are used as indicators of the state of oxygen concentration, since they can not withstand low concentrations.
Rhyacophilidae belong to the most important fish food organisms, but are also utilized by different species of birds.
Most Rhyacophilidae are predators and the species Rhyacophila nubila feeds to a large extent on black fly larvae.
In our infopictures page, you will find images, with some information, of small creatures that have helped us in different ways.
The infopictures will be updated from time to time, so check back in a while!