Dear Vladyslav,

Here you are some internet resources. I have found them in 5 minutes.

http://www.nev.nl/pages/publicaties/eb/nummers/2009/69-4/129-135.pdf

http://bugdorm.megaview.com.tw/malaise-trap-townes-style-pack-of-4-p-62.html

http://en.wikipedia.org/wiki/Malaise_trap

Thank you Andras.

Hi Vladyslav I have attached a simple plan - have made one myself with the help of a lady with a sowing machine  Hope you can use it  Godfried Prinsloo

Thank you, Ayman. That's well

Thank you, Godfried

Thanks to all three gentlemen who provided the useful information as I am also interested into making one. Thanks.