John Harrington Keene, The practical fisherman: dealing with the natural history, the legendary Lore, Londres, The Bazaar, 1881.

The cad bait is, of course, a confrere of the caddis bait, and equally of course, a close relative of the straw bait, or porte bois of the French angler.

page 106

I have taken several caddis-worm cases, with the attached shells and stones from a grayling’s stomach on more than one occasion

page 303