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.
Parts of the Viola Location of Violas in Orchestra. Depending on the arrangement of the orchestra, the violas can sit in a variety of places throughout the orchestra, but the most common location is between the cellos and second violins . The Violaâs Range. The four-stringed viola is tuned in perfect fifths. Tuned at CGDA (its C being an octave lower than the middle C), it has a lower range than the violin (tuned at GDAE) and is an exact octave higher than the cello. The viola also uses its own clef, called the alto clef.