Polly-themus and daBomb knew that social insects are insects that live in groups, communicate, and work together. Examples of social insects are termites, ants, bees, and wasps. I couldn't have put it better myself. He found his answer in The Handy Bug Answer Book by Dr. Gilbert Waldbauer. We had several great answers to this one.
Moths are nocturnal and butterflies are active during the day.
The antennaes of the moths are fanned and butterfly's are narrow. Also a moth has feathery intenas and a butterfly has like little twigs. Moths do not have clubbed antennae and fly at night. Be careful though, there are still some exceptions to these rules. Lice are small, wingless insects that live on birds and mammals.