Lunulate: a line, when made up of a series of small lunules.
"Explanation of Terms Used in Entomology" by John. B. Smith
This is a ridiculous attempt, which defies description, except that it is all about lunules.
"A Budget of Paradoxes, Volume I (of II)" by Augustus De Morgan
Legs deep rufous; antennae black; the club beneath and lunule round the eye straw-coloured.
"Zoological Illustrations, Volume I" by William Swainson