Cicada singing is often heard during the hot summer months. The distinctive high-pitched noise often fills the air. Have you ever wondered why the cicadas produce this noise. Find out the answer to this question in this Animal Planet article. See more »

Aphid, or Plant Louse, a small insect that destroys crops and ornamental plants. Most aphids are green, red, or brown; some are gray, yellow, black, or pink. See more »

Cicada, a large insect related to the aphid and treehopper. It has large eyes and two pairs of membranous wings. See more »

That deafening sound is not signaling the end of the world -- its just a swarm of cicadas about to begin partying! What are these noisy creatures and why can't they just be quiet? Take our quiz and find out when and why cicadas insist on being so loud. See more »

Whitefly, an insect that commonly feeds on citrus trees, certain other crops, and greenhouse plants. See more »

Leafhopper, a leaping insect that sucks plant juices. There are more than 2,500 species in North America and more than 15,000 worldwide. See more »

Scale Insects, a family of insects that feed on plants. The name refers to a secretion of waxy scales that serve as a protective covering. See more »

Cochineal, a red or purple dye obtained from the female of a small scale insect. The dye was formerly used as a food coloring and for this purpose has been largely replaced by synthetic dyes. See more »

Lac, a resinous substance produced by the lac insect and used to make shellac. Shellac is used as a finish and in making lacquer and polishes. See more »

Treehopper, a small winged insect. There are thousands of species of treehoppers, and they are widely distributed around the world. See more »