Adult dragonflies will eat any insect as long as they are able to catch it. While they usually eat mosquitoes and midges, they also eat butterflies, moths, beetles, bees, flies, and even other dragonflies. The general rule is that larger dragonflies will eat insects of body weight daily.
Origin of the name Viola: Derived from the Latin viola (a violet). The name has been in use since the Middle Ages but did not become common until the middle of the 19th century when the use of flower names came into vogue. From A World of Baby Names by Teresa Norman.
Let me put on my etymology hat. And pay attention, because there are plenty of crossword answers below. Wine comes from the Old English word win (which is pronounced like wean). The Old English form was descended from the Latin vinum, or as the Romans wrote it, VINVM.. Vinum in Latin seems to be related to the Latin word for vineyard, vinea.. But I've also read that vinum can mean vine in Latin too.