When talking about whiteflies, many people might think of some kind of common fly, but in reality these are not flies at all. Rather, they belong to a group of insects called Homoptera, which includes such well-known species as cicadas, aphids and mealybugs. Whiteflies belong to the family of Aleyrodidae, which includes more than 1,500 species of whiteflies.
These flying insects look like tiny white moths that are about 1-2 mm long in females (males are smaller), with three pairs of legs and two to four wings, depending on the species. The body is covered with a thin layer of waxy secretions, in the form of a mealy-looking powder produced by ventral glands. The most common in marijuana is Trialeurodes vaporariorum, whose body is slightly yellowish and has four wings, in the resting state are parallel to the body.