(Aphididae) This family includes about 600 genera having slightly less than 5,000 species spread all over the world. However, most are to be found in the temperate areas of the world. The The adults are small – their length is only a few millimeters. They can be with or without wings. They puncture and suck sap from plants. It is known that Aphids play an important role in transmitting viral diseases when feeding on plants. They cause heavy economic losses when feeding on agricultural crops. When they feed on plants, they excrete a liquid called honeydew honey used by ants as food.
