Drifting Czech Nymph
Drifting Czech Nymph

 “From what I can gather the Czech Nymph has been around since the mid Seventies.I wouldn’t even hazard a guess as to who invented the original but I suspect it was developed as an alternative to dead-drifting weighted spiders. Originally, I presume they were tied as a general representation of shrimp,caddis etc. The most important thing is too keep profile slim which helps sink rate. This was achieved by using square-cut lead.With todays materials the worlds your oyster.”

http://flyfishingandflytying.forumco.com/topic~TOPIC_ID~1666.asp

“The Czech method requires flies that will sink rapidly, such as heavy and slim Czech nymphs. These nymphs imitate caddis larvae or gammarus.”