A suborder of Hemiptera, in which both pairs of wings are similar in texture, and do not overlap when folded, as in the cicada. See Hemiptera.

an insect order with close affinities to the true bugs, Hemiptera; membranous wings with reduced venation, well developed eyes and a "beak" which emerges from the back of the head and is held beneath the body. This order includes important crop pests such as whiteflies, aphids, scale insects

plant lice (aphids); whiteflies; cicadas; leafhoppers; plant hoppers; scale insects and mealybugs; spittle insects

Insect order consisting of phloem-sucking insects, including whiteflies and aphids. Economically important species include green peach aphid, Russian wheat aphid, greenbug, whiteflies.

An order or sub-order of insects having (like the Hemiptera) a jointed beak, but in which the fore-wings are either wholly membranous or wholly leathery. The Cicadæ, frog-hoppers, and Aphides, are well-known examples. 94