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The Orange Sulphur belongs to a group of similar looking sulphurs. making them difficult to identify sometimes. Also, the Clouded Sulphur Colias philodice #4209, and the Orange Sulphur hybridize so some individuals may have similar coloration. The spot pattern on the underside of the wings helps to identify this butterfly when the wings are closed. Sulphurs sit with their wings closed, but if back lit, you can see the pattern of the forewing through the underside. Remember that the Southern Dogface has a definite pointed tip of the forewing. The Orange Sulphur wing tips are rounded. Host plants for this species are in the Legume family, like alfalfa, native and exotic clovers.
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