The ommatidia are the parts of an insect's compound eye which receive light from a small part of the insect's field of vision. The Orange Sulphur Butterfly is a common and widespread North American butterfly. The male is yellow with orange, yellow veins, black edges, and a dark black spot. The female is yellow or white with a thin black border surrounding cream spots. Caterpillars eat plants from the pea family, including alfalfa, white clover, and white sweet clover.
Adults drink nectar from dandelions, milkweeds, goldenrods, and asters.
This butterfly was named by Boisduval in 1862. In classification, an order is a group of related or similar organisms. An order contains one or more families. A group of similar orders forms a class. Butterflies and moths belong to the Order Lepidoptera.