Cloudless sulfur butterflies are some of the largest of the sulfur butterflies, with up to a 3-inch wingspan. Males of this species are solid yellow, while females have some black markings on their yellow wings. The cloudless sulfur butterfly begins as a caterpillar around 1 inch long. The caterpillars are light green with yellow stripes on the sides. There are black dots running down the sides of the caterpillar's body.
White butterflies come in colored varieties. The colors they appear in are usually shades of yellow and orange. The male orange tip butterflies have orange colored tips on their wings, but the females of this species do not. The undersides of both gender's back wings are black and orange. The green-veined white butterfly has dark green veins running through its wings that can be seen which helps identify them from solid white butterflies.
Large white butterflies can be found in fields and towns because of their adaptability. These butterflies feed on the leaves of plants and gardens can be damaged by them. Large white butterflies have white wings with a black spot in the middle of each. Small white butterflies are similar to their large relatives, but their caterpillars are green while the large white butterfly's are black and orange to warn off predators of their bad taste.
The orange sulfur butterfly has orange wings that are easily identified in flight. Males have black edging to their wings and females have yellow spots on the edges. Sometimes female orange sulfur butterflies are white, however. Like many Pieridae butterflies, the orange sulfur lives in open fields, especially hay fields. These butterflies often live in the same areas with cloudless sulfurs, but are usually less common. These butterflies are most common in late summer and fall.