Glutophrissa drusilla, sometimes also called the Florida White or Tropical White, is a butterfly in the family Pieridae.
It is found in tropical America from Brazil north to southern Florida, and sometimes in coastal Texas.
Its wingspan is 53–77 mm.
The male's upperside of the wings is all white with a narrow black costal edge on the forewing.
The male's underside of the wings show a yellow comma at the base of forewing
The female's upperside is pale yellowish-white with a slightly yellow base of the hindwing, and usually she has black on the forewing tips.
The female's underside of the wings is white with yellow on the base of the forewing.
This is the subspecies Glutophrissa drusilla tenuis.
The photo in the middle shows it together with the much smaller Eurema albula celata.
Andrew Neild, author of The Butterflies of Venezuela and a recognized authority on Neotropical butterflies, helped me identifying this species.
Los Tarrales Natural Reserve, Patulul, Suchitepequez, Guatemala, 18 January 2020