In the rocky streams of Californian mountains

Henry Meade Bland, Studies in Entomology: a practical Work on Insects, Containing Suggestions and outlines for  Nature-Study in School Work, San Francisco, The Whitaker & Ray Company, 1899, p. 80.

The little yellow Caterpillar which lives in the rocky streams of Californian mountains encasing itself in  a tube made of leaves, grasses, bits of wood, or even sand, glued together is well known to all trout fishermen. The case which protects this strange little fellow is closed except at the end at which the head appears.