Metachroma longicolle is a species of leaf beetle. It is found in the United States and Mexico. Its length is between 2.4 and 3.4 mm.

Subspecies There are two subspecies of M. longicolle: Metachroma longicolle aeneicolle Horn, 1892 Metachroma longicolle longicolle Jacoby, 1891

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