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Mountain Emperor
Butterfly.--Very closely allied to C. antonia in the style and location of the markings, but tinted with pale ashen-gray on the upper side of the wings, and not yellowish-fulvous as in the last-named species. Expanse, male, 1.75 inch; female, 2.15 inches.
The early stages are unknown.
Montis occurs in Arizona and Colorado, and by some writers is regarded as a varietal form of antonia, in which opinion they may be correct.