Shirley Hibberd, The book of aquarium and water cabinet, Londres, Groombridge, 1856, p. 126-129.
In an aquarium, the caddis worms are very amusing, and since they thrive there, they are very suitable additions to the happy family. We see them busy at the bottom, adding fragments of weed, pebbles, minute shells, even if the snails within them are alive, and any small debris that their fingers can seize hold of. Last season I had amongst a large number of cas, one that had his case nearly destroyed by accidentally falling from the table. I removed from him what remained of his case, and threw him into a jar with a soldier plant and a few Lymnea. He set to work to repair his tabernacle, and the Lymnea helped him, for they nibbled a plant of Stratoides into shreds. These shreds the cad gathered, and every day he added a fresh piece, so that, in about ten days, he appeared in a suit of green, his clothes bulged out to an enormous size, and everywhere studded with points and corners, the most comical sight that could be imagined. Since he could find nothing of a small neat pattern, he took what he could, and became a perfect Jack in the green, nearly an inch and a half in length, and thicker than a carpenter’s lead pencil.
The movements of these creatures are as comical as their specimens of tailoring. We se them mounting a stem or leaf with great gravity, when suddenly up goes the tail, the legs hold tight, and the case turns completely over, as if on the first of May, Jack-in-the-green were to dance on his head. When the creature is hidden, and the case sways to and fro like a buoy attached by too short a rope the sight is very curious. This case-maker is the larva from a fly which bears ressemblances to the two families which stand on either side of it- the Lepidoptera, or true butterflies, and the Neuroptera, of which the dragon flies and other membranaceous winged insects are members. As soon as he enters the world, he begins to show his skill in tailoring, and by means of silken threads and gluten constructs his case of bits of stick, straw, dead leaves, or shells, in fact, whatever he can get, and as long as he retains the worm-like form the case is his castle, and he can defy the world. The case outside is generally a rough affair, but if you draw out the cad you will se that Inside it is perfectly cylindrical, smooth, and polished and around tthe doorway, through which the larva makes acquaintance with the world, it is neatly finished with a very circular rim. When you have removed a cad, if you throw him into a tank you will learn in an instant what is the use of his case, for his soft nakedness is no sooner exposed than the minnows finish him, and find the flavour excellent. But to see a cad in his proper uniform moleste dis a very rare sight indeed. He passes his larva life innicently, and is an amusing fellow ; when he feels the numbness of death creeping over him, the cad draws in his six legs, and sets to work Inside to weave a winding-sheet and to shut the shutters for he knows that his time is come, and there is no one to do such melancoly offices for him. All alone in his solitary cell, the hermit works day and night, and hourly his fingers grow more feeble.