The Collaborative International Dictionary
Gastropacha Americana
Lappet \Lap"pet\, n. [Dim. of lap a fold.]
A small decorative fold or flap, esp. of lace or muslin, in a
garment or headdress.
--Swift.
Lappet moth (Zo["o]l.), one of several species of bombycid moths, which have stout, hairy caterpillars, flat beneath. Two common American species ( Gastropacha Americana, and Tolype velleda) feed upon the apple tree.