Mesolia huachucaella is a moth in the family Crambidae. It was described by William D. Kearfott in 1908. It is found in the US state of Arizona.
The wingspan is 15–10 mm for males and 17–20 mm for females. The forewings are dark grayish brown.Kearfott, William Dunham (1909). "Descriptions of New Species of North American Crambid Moths". Proceedings of the United States National Museum. 35: 374-375. Adults are on wing from July to August.
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