I tackled my ten foot three piece five weight rod with a heavy caddis nymph.
In recent years there has been quite a craze for the Polish or Check heavily weighted nymphs that imitate free-swimming caddis larvae.
Some caddis fly species are tolerant of slight pollution.
The Caddis larvae normally live on river-beds, and make cocoons for themselves from bark, gravel and other river detritus.
The scientist and artist Hubert Duprat has placed Caddis worm larvae in vitrines lined with gold dust and tiny particles of jewels.
The size, the material used and how its case has been constructed can identify each sub species of cased caddis.
Their main food source is freshwater shrimps, water slaters and caddis larvae which they obtain by diving and hunting underwater.
We particularly needed to gather together this group of experts to be sure than any adult caddis found were indeed Land Caddis.