Night butterflies, also known as moths, belong to the order Lepidoptera, alongside diurnal butterflies and caterpillars, which are actually moth or butterfly larvae. Most moths are nocturnal or crepuscular while most butterflies are diurnal.
Night butterflies are part of the Lepidoptera order, together with the rest of the butterflies. They are also known as moths, with approximately 160,000 known species. Most of them are nocturnal, but crepuscular and diurnal species also exist. They are considered pests, especially in their larval form, as these caterpillars can cause severe damage to crops and forests as well. Some are beneficial, and are being purposely farmed, such as the silkworm, whose cocoon is of importance.