Planipennia: applied to Neuroptera in which the wings are large and laid flat on the body wnen at rest; Sialidae, Myrmeleonidae, etc.
"Explanation of Terms Used in Entomology" by John. B. Smith
Among them are the gauze-flies (Planipennia), caddis-flies (Phryganida), and fan-flies (Strepsiptera).
"The History of Creation, Vol. II (of 2)" by Ernst Haeckel