A few physical characteristics separate them from all other butterflies, these including antennae that are usually hooked or recurved, and wing venation that usually is dissimilar to butterflies. The Giant Skippers of the southern and western states have larvae that bore in the stems and roots of yucca and similar plants. These larvae are sold as food in Mexico, and sometimes appear as canned products in gourmet shops in the United States. Most butterflies of this family are relatively small and sometimes quite colorful. Elfins are brownish species that appear in the spring.
Coppers are a group that are popular and found mostly in open areas of marshes and meadows.
Hairstreaks often have delicate hairlike extensions on their hind wings. Blues are the smallest of the Family, and include the Pygmy Blue of the West, the smallest U.S. butterfly. The families Danaidae, Heliconiidae, Libytheidae and Satyridae, which are sometimes considered separate families in popular books, are included in the family Nymphalidae. One of the most prominent groups of nymphalids is the Fritillary Butterflies. Their underwings are usually marked with silvery spots.