The Nymphalidae is a family of brush-footed butterflies or four-footed butterflies.
Many butterflies have different coloring and marks depending upon whether their wings are open or closed and whether viewed from the topside or underside. Males and females frequently are markedly different in coloring and sometimes in size as well.
It is important to know that butterflies and moths appear differently depending upon their manner of display.
These resource and reference links primarily (but not all) go to Wikipedia pages so the child may learn more about the butterfly or moth's habitat, lifecycle, coloring, etc.
