Adult male clouded sulphurs are yellow and the wings have a distinct black border. Females are duller, and the black border of their wings has yellow spots. Albino females are common. All adults have one black spot on each forewing and faint orange spots on the hindwings. When wings are folded, the black border is concealed, but you can see a silver spot outlined in pink on each hindwing.
Larvae are slender and green with a darker dorsal line and a white or yellowish stripe along each side. There is sometimes a rosy tint on the body.
Habitat and Conservation
In addition to their considerable aesthetic value, butterflies pollinate plants, many of which have commercial importance. Additionally, because butterflies are sensitive to toxins and disturbance, they are good indicators of the overall status of ecosystems.
The word “butterfly” probably originated because of the yellow color of European sulphurs.