Lepidoptera :: Lepidoptera (n. pl.) An order of insects, which includes the butterflies and moths. They have broad wings, covered with minute overlapping scales, usually brightly colored..
Lepidopterist :: Lepidopterist (n.) One who studies the Lepidoptera.
Lepidopterous :: Lepidopterous (a.) Of or pertaining to the Lepidoptera.
Microlepidoptera :: Microlepidoptera (n. pl.) A tribe of Lepidoptera, including a vast number of minute species, as the plume moth, clothes moth, etc..