Can I copy this? I found a good comparison at this link:
http://www.earthsbirthday.org/butterflies/bflys/activitykit/compare.html
Moths
Wings not attached
Nocturnal (active at night)
Wings flat when resting
Feathered antennae
Fat abdomen
Form a cocoon
Butterflies
Wings hooked together in flight
Diurnal (active in the day)
Wings upright when resting
Straight, plain antennae
Thin abdomen
Form a chrysalis