Lurid -us: dirty brown with a bluish tinge [pale brown + a little French blue]: also used to indicate an obscuring of bright colors.
Luteo -testaceous: dark clay yellow.
Luteous -eus: clay yellow [pale clay yellow].
Lutescent: becoming or appearing to be clay yellow.
Lutose -us: apparently or really covered with dirt.
Lymphatic: producing, carrying or relating to the lymph.
Lyrate: lyre-shaped: cut into several transverse segments, and gradually enlarging towards the extremity.
Lyre: the upper wall or border of the spinning tube of caterpillars.
Macrochaetae: the long bristles occurring singly on the body of Diptera.