https://youtu.be/dOrZf9MB5AU
Caddisflies are not actually flies, they have two sets of wings and there are over 1,000 types of caddisflies in Canada. Adult caddisflies are land-dwelling near fresh water, while larvae are water born. Adult caddisflies are similar in appearance to moths. They have diminished mouthparts and well-developed complex eyes. Caddisflies feed on fallen leaves and other detritus. All kinds of insects including spiders eat the adults, this includes birds as well. They swarm in large numbers and are attracted to lights making them pests that can cause allergic reactions and asthma. They don’t live more than a few days after becoming flying adults, so if you can wait a couple days, they will be gone for another year.
gogreenpestcontrol.ca Ladner Tsawwassen Delta B.C. Randy Bilesky
https://www.linkedin.com/pulse/caddisflies-periwinkle-randy-bilesky-1?published=t
http://www.delta-optimist.com/opinion/blogs/blog-caddisflies-1.13879283