Size and shape
The largest moth has a wingspan of 300 mm, more than 100 times greater than the wingspan of individuals belonging to the species with the smallest size of CIAT. Many species of Moths have unusual shapes of wings. Piórolotki name is attributed to a group of small species, which are divided into several wings flaps, like feathers, for example Platyptilia Rhodo-Dactyl. Some African Cleridae Zygaenidae are elongated strips of the rear pair of wings in the shape of pennants.
In many species of Moths there is Sexual Dimorphism, which consists in the fact that males are winged, while females do not have wings or are very small and can not fly through it. No similar cases were reported in butterflies. Living on oceanic islands have a very small moth wings and tend to move by jumping rather than flying. It is adapting to the conditions imposed by them-living environment in small islands with a small flying insect can be easily carried away by the wind on the open sea and perish there. Reduction of wings in insects is a common feature of many island species, belonging to different orders of insects.