Found in brooks

R. Lakeland, The Teesdale Angler, Barnard Castle, Imprimé à l’Office of R. Barker, Horse Market, 1858, p. 68

Caddis, or Cad Bait

Found in brooks or rivers, encased in litle straw or gravel husks : a curious litlle grub similar to a gentle in size, with a dirty yellow body and black head.