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Falcate Orange-tip
Butterfly.--This species is readily recognized by the decidedly falcate tip of the fore wings. The first brood appears in early spring. It is single-brooded in the Northern States, but is double-brooded in the western portions of North Carolina, where I have taken it quite abundantly late in the autumn. Expanse, 1.30-1.50 inch.
Early Stages.--The life-history is well known. The caterpillar feeds on Sisymbrium, Arabis, Cardamine, and other cruciferous plants.
It ranges from New England to Texas, but is not found, so far as is known, in the regions of the Rocky Mountains and on the Pacific coast.