The three classes, basing the classification upon their power to attract attention, are: The beautiful insects, including moths, butterflies, and beetles, The wonderful insects, including such insects as ants, ant-lions, Caddice-flies, etc.
"Ontario Teachers' Manuals: Nature Study"
Ontario Ministry of Education
It is the larva of the Caddice fly, or case fly.
"The Insect Folk"
Margaret Warner Morley
Now, Mollie, I see you have picked up a fine big Caddice case.
"The Insect Folk"
Margaret Warner Morley