Hylephila p. phyleus
This is the skipper of my suburban childhood summers. It loves to nectar on garden lantana, and its elusive caterpillars feed on and nest within lawn grasses such as Bermuda. Males are a lighter, more golden color than females. They can be found most of the year, but are especially common in the heat of late summer and into the fall. Fiery skippers range along the southern part of the U.S. from southern California to Florida (and Hawaii), and south to Argentina. There are several subspecies elsewhere in South America. It was first described by Dru Drury in 1773 based on specimens from St. Christopher's, Nevis, and Antigua.
For a detailed account of the life cycle of the fiery skipper, I've created a separate page with information about rearing this species. My own first attempts haven't worked out well, though I got some nice egg and first instar photos.