Where’s Wildlife · Butterfly Field Guide
Colias eurytheme
Pronounced (approx.): KOH-lee-us yoo-RITH-eh-mee
A familiar sulphur of open fields, with colors that are more variable than its name suggests.
Select the photograph to browse all 7 field photographs.
NATIVE TO NORTH AMERICA
Both sexes have dark wing borders, with pale border spots in females. The underside has silver spots ringed in reddish scales. The amount of orange varies. [1]
Explore these 7 field photographs. Select any image to open the gallery.
Green caterpillars feed on legume leaves, mostly at night. Multiple generations occur during the growing season; local flight dates depend on climate. [1]
Orange and Clouded Sulphurs can hybridize. White-form females cannot reliably be separated in the field, so a pale butterfly should not be identified from color alone. [1]
Explore reported Orange Sulphur sightings. Observation records show where people have documented butterflies and are not a complete range map.
[1] Missouri Department of Conservation — Orange Sulphur
Identification, habitat, host plants, feeding, and life history.