Most famous representatives are aphids sucking sap of all the garden and forest plants. Unfortunately, at the South Urals there are no "singing" cicadas (the biggest specimens for the Order) which are common for South regions of Russia.
Homopterous insects have various appearances: winged, wingless, sedentary forms, as well as forms not similar to insect.
All the homopterous insects have piercing-sucking mouthparts with which they suck sap of plants and frequently make damage to agricultural plants.
Aphids are the most known representatives of the Order. They are living in colony on leaves and stems of plant. The aphid development is difficult and uncommon. The aphids have winged and wingless virgin female-foundress, i.e., stem mother, which multiplies without conception (parthenogenesis) and by using viviparity (see the photo 1). Due to this generation, aphids form large colony which damage young sprouts of plants.
If you look at the photos 2, 3, and 4 at which aphids are close by ants, do not think that "forest protector" would eat them. Quite the contrary, ants are protecting the aphids, because during sucking sap, the digestive system of aphid detains important nutrients and excretes sweet liquid Ц honeydew. The ants eat honeydew and periodically tickle aphid with antennae. It could be said that this is the ant farm of aphids. The ants protect aphids against their enemies: Ladybirds, lacewing and other insects.