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Westwood's Yellow
Butterfly.--Pale yellow or orange-yellow, with a narrow black border on the fore wings, beginning on the costa beyond the middle, and not quite reaching the inner angle. On the under side the wings are pale yellow, immaculate, or at the apex of the fore wing and the outer angle of the hind wing broadly marked with very pale reddish-brown. Expanse, 1.75-2.00 inches.
Early Stages.--Unknown.
Westwood's Yellow occurs in Texas and Arizona, but is not common. It is abundant farther south.