John Ellor Taylor,The aquarium : its inhabitants, structure & management, Londres, Hardwike, 1876, p. 109-110.

The various species of caddis-worms which haunt our streams, ponds, and lakes belong to the order Phryganeidae, There are a great many of them, and the larvae of ach have usually a different plan of constructing their well-know tubes, by which they may be identified. Some select minutes shells of a species of Planorbis or Pisidium ; others use grains of sand. The genus Limnephilusprefers pieces of rush or other aquatic weeds. But all of them are interesting, and seem to be perfectly aware that they are regarded as choice and dainty bits by other larger and more active water animals. All of them hold on to the interiors of their frail defence by means of a serie of hooks, so that it is somewhat difficult to drag them out forcibly.