The Cloudless Sulphur butterfly (Phoebis sennae) is a common, widely distributed species in the United States.
Wings are uniform yellow in color, with some brown and white spots on females. You can distinguish Cloudless Sulphurs from the Clouded Sulphur (Colius philodice), by their lack of black edging on the topsides of their wings.
The Cloudless is also larger than the Clouded Sulphur.
Size: 2.0" - 3.0"
Host plants: senna, partridge pea
Nectar plants: hibiscus, lantana, sage, zinnia, goldenrod, others
Male Cloudless Sulphur Butterfly (ventral) on a pink Zinnia
Cloudless Sulphur Butterfly (ventral)
Cloudless Sulphur Butterfly (ventral) on a Periwinkle