I have just come across this photo of a tiger moth from among Mauricio’s photos. At first I thought it was a butterfly and asked Mauricio what type it was. So he put me straight on the matter. One of the main differences between them is a butterfly’s antennae are club-shaped with a long shaft and a bulb at the end. A moth’s antennae are feathery or saw-edged. Butterflies tend to fold their wings vertically up over their backs. Moths tend to hold their wings in a tent-like fashion that hides the abdomen. Butterflies are typically larger and have more colourful patterns on their wings. Moths are typically smaller with drab-coloured wings. Not the case here, I must say.
Another difference is a more obvious one; we tend to see butterflies during the day and moths at night, but this isn’t always the case as can be seen below.