In general, moths are very different from butterflies, but did you know that moths are closely related insects with butterflies and both belong to the Order of Lepidoptera.
The difference between a butterfly and a moth is more than a taxonomy. Sometimes the names "Rhopalocera" (butterfly) and "Heterocera" (moths) are used to formalize their differences.
Much effort has been made to divide the order of Lepidoptera into groups such as Microlepidoptera and Macrolepidoptera, Fenatae and Jugatau, or Monotrysia and Ditrysia. The failure of this name to remain in the modem classification because none of the classification represents a pair of monophyletic groups. In fact, butterflies are a small group that emerges from "moths".
Most species of moth are active at night, but some are active in the evenings and mornings, as well as those who are active during the day. Source : Wikipedia