Sympistis riparia, the dune sympistis, is a moth of the family Noctuidae. The species was first described by Herbert Knowles Morrison in 1875. It is native to North America and it is listed as a species of special concern in Massachusetts and in Connecticut."Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 5 February 2018.

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